diff --git a/boofilsic/settings.py b/boofilsic/settings.py
index 10d17464..e747f623 100644
--- a/boofilsic/settings.py
+++ b/boofilsic/settings.py
@@ -102,6 +102,9 @@ env = environ.FileAwareEnv(
     DISCORD_WEBHOOKS=(dict, {"user-report": None}),
     # Slack API token, for sending exceptions to Slack, may deprecate in future
     SLACK_API_TOKEN=(str, ""),
+    THREADS_APP_ID=(str, ""),
+    THREADS_APP_SECRET=(str, ""),
+    BLUESKY_LOGIN_ENABLED=(bool, False),
     # SSL only, better be True for production security
     SSL_ONLY=(bool, False),
     NEODB_SENTRY_DSN=(str, ""),
@@ -174,8 +177,11 @@ elif _parsed_email_url.scheme:
 else:
     ENABLE_LOGIN_EMAIL = False
 
-ENABLE_LOGIN_THREADS = False
-ENABLE_LOGIN_BLUESKY = False
+
+THREADS_APP_ID = env("THREADS_APP_ID")
+THREADS_APP_SECRET = env("THREADS_APP_SECRET")
+
+BLUESKY_LOGIN_ENABLED = env("BLUESKY_LOGIN_ENABLED")
 
 SITE_DOMAIN = env("NEODB_SITE_DOMAIN").lower()
 SITE_INFO = {
diff --git a/boofilsic/urls.py b/boofilsic/urls.py
index fe54996a..25f9967b 100644
--- a/boofilsic/urls.py
+++ b/boofilsic/urls.py
@@ -27,9 +27,10 @@ urlpatterns = [
     path("login/", login),
     path("markdownx/", include("markdownx.urls")),
     path("account/", include("users.urls")),
+    path("account/", include("mastodon.urls")),
     path(
         "users/connect/",
-        RedirectView.as_view(url="/account/connect", query_string=True),
+        RedirectView.as_view(url="/mastodon/login", query_string=True),
     ),
     path(
         "auth/edit",  # some apps like elk will use this url
diff --git a/common/setup.py b/common/setup.py
index 6fecee50..e4536cfd 100644
--- a/common/setup.py
+++ b/common/setup.py
@@ -1,4 +1,3 @@
-import django
 from django.conf import settings
 from django.core.checks import Error, Warning
 from loguru import logger
@@ -7,7 +6,6 @@ from catalog.search.models import Indexer
 from common.models import JobManager
 from takahe.models import Config as TakaheConfig
 from takahe.models import Domain as TakaheDomain
-from takahe.models import Follow as TakaheFollow
 from takahe.models import Identity as TakaheIdentity
 from takahe.models import Relay as TakaheRelay
 from takahe.models import User as TakaheUser
diff --git a/common/templates/_header.html b/common/templates/_header.html
index 900e3f51..0eeebac8 100644
--- a/common/templates/_header.html
+++ b/common/templates/_header.html
@@ -119,13 +119,6 @@
     </ul>
   </nav>
 </header>
-{% if request.user.is_authenticated and not request.user.mastodon_username and not request.user.username %}
-  <ul class="messages" style="text-align:center">
-    <li class="error">
-      <a href="{% url 'users:info' %}">{% trans "Set a username." %}</a>
-    </li>
-  </ul>
-{% endif %}
 {% if messages %}
   <ul class="messages" style="text-align:center">
     {% for message in messages %}
diff --git a/common/templates/_sidebar.html b/common/templates/_sidebar.html
index 95efb978..07046028 100644
--- a/common/templates/_sidebar.html
+++ b/common/templates/_sidebar.html
@@ -54,16 +54,26 @@
                   </a>
                 </span>
               {% endif %}
-              {% if identity.user.mastodon_account %}
+              {% if identity.user.mastodon %}
                 <span>
-                  <a href="{{ identity.user.mastodon_account.url }}"
+                  <a href="{{ identity.user.mastodon.url }}"
                      target="_blank"
                      rel="noopener"
-                     title="@{{ identity.user.mastodon_acct }}">
+                     title="@{{ identity.user.mastodon.handle }}">
                     <i class="fa-brands fa-mastodon"></i>
                   </a>
                 </span>
               {% endif %}
+              {% if identity.user.threads %}
+                <span>
+                  <a href="{{ identity.user.threads.url }}"
+                     target="_blank"
+                     rel="noopener"
+                     title="@{{ identity.user.threads.handle }}">
+                    <i class="fa-brands fa-threads"></i>
+                  </a>
+                </span>
+              {% endif %}
             {% elif request.user.is_authenticated %}
               {% include 'users/profile_actions.html' %}
             {% endif %}
diff --git a/common/templatetags/oauth_token.py b/common/templatetags/oauth_token.py
deleted file mode 100644
index 06a4b83d..00000000
--- a/common/templatetags/oauth_token.py
+++ /dev/null
@@ -1,17 +0,0 @@
-from django import template
-from django.conf import settings
-from django.utils.html import format_html
-
-register = template.Library()
-
-
-class OAuthTokenNode(template.Node):
-    def render(self, context):
-        request = context.get("request")
-        oauth_token = request.user.mastodon_token if request else ""
-        return format_html(oauth_token)
-
-
-@register.tag
-def oauth_token(parser, token):
-    return OAuthTokenNode()
diff --git a/common/views.py b/common/views.py
index bf4b056e..d01e8e67 100644
--- a/common/views.py
+++ b/common/views.py
@@ -11,6 +11,12 @@ from takahe.utils import Takahe
 from .api import api
 
 
+def render_error(request, title, message=""):
+    return render(
+        request, "common/error.html", {"msg": title, "secondary_msg": message}
+    )
+
+
 @login_required
 def me(request):
     if not request.user.registration_complete:
diff --git a/compose.yml b/compose.yml
index c04f2b19..f8b10751 100644
--- a/compose.yml
+++ b/compose.yml
@@ -67,6 +67,9 @@ x-shared:
       TAKAHE_VAPID_PRIVATE_KEY:
       TAKAHE_DEBUG: ${NEODB_DEBUG:-False}
       TAKAHE_VENV: /takahe-venv
+      THREADS_APP_ID:
+      THREADS_APP_SECRET:
+      BLUESKY_LOGIN_ENABLED:
       SPOTIFY_API_KEY:
       TMDB_API_V3_KEY:
       GOOGLE_API_KEY:
diff --git a/docs/install.md b/docs/install.md
index 8d4b83d1..2e841847 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -80,6 +80,12 @@ You should see the same JSON response as above, and the site is now accessible t
 
 ## Register an account and make it admin
 
+If you have email sender properly configured, use this command to create an admin with a verified email (use any password as it won't be saved)
+
+```
+docker compose --profile production run --rm shell neodb-manage createsuperuser
+```
+
 Now open `https://yourdomain.tld` in your browser and register an account, assuming username `admin`
 
 add the following line to `.env` to make it an admin account:
diff --git a/journal/models/common.py b/journal/models/common.py
index 7235d1ab..70535bf1 100644
--- a/journal/models/common.py
+++ b/journal/models/common.py
@@ -8,14 +8,14 @@ from typing import TYPE_CHECKING, Any, Self
 # from deepmerge import always_merger
 from django.conf import settings
 from django.core.signing import b62_decode, b62_encode
-from django.db import connection, models
-from django.db.models import Avg, CharField, Count, Q
+from django.db import models
+from django.db.models import CharField, Q
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
 from loguru import logger
 from polymorphic.models import PolymorphicModel
 
-from catalog.common.models import AvailableItemCategory, Item, ItemCategory
+from catalog.common.models import Item, ItemCategory
 from catalog.models import item_categories, item_content_types
 from takahe.utils import Takahe
 from users.models import APIdentity, User
@@ -316,7 +316,7 @@ class Piece(PolymorphicModel, UserOwnedObjectMixin):
 
     def sync_to_mastodon(self, delete_existing=False):
         user = self.owner.user
-        if not user.mastodon_site:
+        if not user.mastodon:
             return
         if user.preference.mastodon_repost_mode == 1:
             if delete_existing:
diff --git a/journal/models/mark.py b/journal/models/mark.py
index 5cbde9eb..560a85b7 100644
--- a/journal/models/mark.py
+++ b/journal/models/mark.py
@@ -6,7 +6,7 @@ from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
 from loguru import logger
 
-from catalog.models import Item, ItemCategory
+from catalog.models import Item
 from mastodon.models import get_spoiler_text
 from takahe.utils import Takahe
 from users.models import APIdentity, User
@@ -309,8 +309,11 @@ class Mark:
         post_as_new = shelf_type != last_shelf_type or visibility != last_visibility
         classic_crosspost = user.preference.mastodon_repost_mode == 1
         append = (
-            f"@{user.mastodon_acct}\n"
-            if visibility > 0 and share_to_mastodon and not classic_crosspost
+            f"@{user.mastodon.handle}\n"
+            if visibility > 0
+            and share_to_mastodon
+            and not classic_crosspost
+            and user.mastodon
             else ""
         )
         post = Takahe.post_mark(self, post_as_new, append)
diff --git a/journal/templates/collection.html b/journal/templates/collection.html
index a634e1ad..db5ff798 100644
--- a/journal/templates/collection.html
+++ b/journal/templates/collection.html
@@ -58,7 +58,7 @@
             </div>
             <div class="info">
               <p>
-                <a href="{{ collection.owner.url }}">{{ collection.owner.mastodon_account.display_name }}</a>
+                <a href="{{ collection.owner.url }}">{{ collection.owner.display_name }}</a>
                 <span class="handler">@{{ collection.owner.handle }}</span>
               </p>
               <p>
diff --git a/journal/templates/comment.html b/journal/templates/comment.html
index cfe45684..43a65288 100644
--- a/journal/templates/comment.html
+++ b/journal/templates/comment.html
@@ -51,7 +51,7 @@
           </div>
           <div>
             <fieldset>
-              {% if request.user.mastodon_acct %}
+              {% if request.user.mastodon %}
                 <label for="id_share_to_mastodon">
                   <input role="switch"
                          type="checkbox"
diff --git a/journal/templates/mark.html b/journal/templates/mark.html
index 85df06e7..c1c6962c 100644
--- a/journal/templates/mark.html
+++ b/journal/templates/mark.html
@@ -109,7 +109,7 @@
           </div>
           <div>
             <fieldset>
-              {% if request.user.mastodon_acct %}
+              {% if request.user.mastodon %}
                 <label for="id_share_to_mastodon">
                   <input role="switch"
                          type="checkbox"
diff --git a/journal/templates/profile.html b/journal/templates/profile.html
index 7689e184..a7a81044 100644
--- a/journal/templates/profile.html
+++ b/journal/templates/profile.html
@@ -238,10 +238,8 @@
       {% include "_sidebar.html" with show_progress=1 show_profile=1 %}
     </main>
     {% include "_footer.html" %}
-    {% if identity.user and identity.user.mastodon_account %}
-      <a href="{{ identity.user.mastodon_account.url }}"
-         rel="me"
-         style="display:none">Mastodon verification</a>
+    {% if identity.user and identity.user.mastodon %}
+      <a href="{{ identity.user.mastodon.url }}" rel="me" style="display:none">Mastodon verification</a>
     {% endif %}
   </body>
 </html>
diff --git a/journal/templates/wrapped.html b/journal/templates/wrapped.html
index 3d039013..55ddd33e 100644
--- a/journal/templates/wrapped.html
+++ b/journal/templates/wrapped.html
@@ -58,7 +58,7 @@
           var cats = JSON.parse(document.getElementById('cat-data').textContent);
           var data = JSON.parse(document.getElementById('data').textContent);
           var opts = {
-            title: "@{{ identity.user.mastodon_acct | default:identity.full_handle }} - {{ year }}",
+            title: "@{{ identity.user.mastodon.handle | default:identity.full_handle }} - {{ year }}",
             element: '#viz0',
             font: 1,
             data: data,
diff --git a/journal/views/collection.py b/journal/views/collection.py
index cd358bfa..7aa1756e 100644
--- a/journal/views/collection.py
+++ b/journal/views/collection.py
@@ -172,8 +172,8 @@ def share_collection(
         else (
             _("shared {username}'s collection").format(
                 username=(
-                    " @" + collection.owner.user.mastodon_acct + " "
-                    if collection.owner.user.mastodon_acct
+                    " @" + collection.owner.user.mastodon.handle + " "
+                    if collection.owner.user.mastodon
                     else " " + collection.owner.username + " "
                 )
             )
diff --git a/journal/views/common.py b/journal/views/common.py
index dc62e3d4..5c21c51b 100644
--- a/journal/views/common.py
+++ b/journal/views/common.py
@@ -1,7 +1,7 @@
 import datetime
 
 from django.contrib.auth.decorators import login_required
-from django.core.exceptions import BadRequest, ObjectDoesNotExist, PermissionDenied
+from django.core.exceptions import BadRequest, PermissionDenied
 from django.core.paginator import Paginator
 from django.db.models import F, Min, OuterRef, Subquery
 from django.shortcuts import get_object_or_404, redirect, render
@@ -14,7 +14,6 @@ from common.utils import (
     AuthedHttpRequest,
     PageLinksGenerator,
     get_uuid_or_404,
-    profile_identity_required,
     target_identity_required,
 )
 
@@ -29,7 +28,9 @@ def render_relogin(request):
         request,
         "common/error.html",
         {
-            "url": reverse("users:connect") + "?domain=" + request.user.mastodon_site,
+            "url": reverse("mastodon:connect")
+            + "?domain="
+            + request.user.mastodon.domain,
             "msg": _("Data saved but unable to crosspost to Fediverse instance."),
             "secondary_msg": _(
                 "Redirecting to your Fediverse instance now to re-authenticate."
diff --git a/journal/views/profile.py b/journal/views/profile.py
index 12506bd1..5209019c 100644
--- a/journal/views/profile.py
+++ b/journal/views/profile.py
@@ -5,12 +5,15 @@ from django.shortcuts import render
 from django.views.decorators.http import require_http_methods
 
 from catalog.models import *
-from common.utils import AuthedHttpRequest
+from common.utils import (
+    AuthedHttpRequest,
+    profile_identity_required,
+    target_identity_required,
+)
 from takahe.utils import Takahe
 
 from ..forms import *
 from ..models import *
-from .common import profile_identity_required, target_identity_required
 
 
 @require_http_methods(["GET"])
diff --git a/mastodon/auth.py b/mastodon/auth.py
index 54170205..9d958667 100644
--- a/mastodon/auth.py
+++ b/mastodon/auth.py
@@ -1,10 +1,8 @@
-from django.contrib.auth.backends import ModelBackend, UserModel
+from django.contrib.auth.backends import ModelBackend
 from django.http import HttpRequest
 
 from mastodon.models.common import SocialAccount
 
-from .models import Mastodon
-
 
 class OAuth2Backend(ModelBackend):
     """Used to glue OAuth2 and Django User model"""
diff --git a/mastodon/models/bluesky.py b/mastodon/models/bluesky.py
index 094d62a7..e9f28fe2 100644
--- a/mastodon/models/bluesky.py
+++ b/mastodon/models/bluesky.py
@@ -8,7 +8,7 @@ class Bluesky:
 
 
 class BlueskyAccount(SocialAccount):
-    username = jsondata.CharField(json_field_name="access_data", default="")
+    app_username = jsondata.CharField(json_field_name="access_data", default="")
     app_password = jsondata.EncryptedTextField(
         json_field_name="access_data", default=""
     )
diff --git a/mastodon/models/common.py b/mastodon/models/common.py
index 207f175f..dbbcb4dd 100644
--- a/mastodon/models/common.py
+++ b/mastodon/models/common.py
@@ -2,7 +2,6 @@ from django.db import models
 from django.db.models.functions import Lower
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
-from loguru import logger
 from typedmodels.models import TypedModel
 
 from catalog.common import jsondata
@@ -67,12 +66,15 @@ class SocialAccount(TypedModel):
         ]
 
     def __str__(self) -> str:
-        return f"{self.platform}:{self.handle}"
+        return f"({self.pk}){self.platform}#{self.handle}:{self.uid}@{self.domain}"
 
     @property
     def platform(self) -> Platform:
         return Platform(self.type.replace("mastodon.", "", 1).replace("account", "", 1))
 
+    def sync_later(self):
+        pass
+
     def to_dict(self):
         # skip cached_property, datetime and other non-serializable fields
         d = {
diff --git a/mastodon/models/email.py b/mastodon/models/email.py
index 2b726a70..a97a8707 100644
--- a/mastodon/models/email.py
+++ b/mastodon/models/email.py
@@ -1,19 +1,14 @@
 import random
-from datetime import timedelta
-from os.path import exists
-from urllib.parse import quote
 
 import django_rq
 from django.conf import settings
 from django.core.cache import cache
 from django.core.mail import send_mail
-from django.core.signing import TimestampSigner, b62_decode, b62_encode
+from django.core.signing import b62_encode
 from django.http import HttpRequest
 from django.utils.translation import gettext as _
 from loguru import logger
 
-from catalog.common import jsondata
-
 from .common import SocialAccount
 
 _code_ttl = 60 * 15
@@ -24,6 +19,14 @@ class EmailAccount(SocialAccount):
 
 
 class Email:
+    @staticmethod
+    def new_account(email: str) -> EmailAccount | None:
+        sp = email.split("@", 1)
+        if len(sp) != 2:
+            return None
+        account = EmailAccount(handle=email, uid=sp[0], domain=sp[1])
+        return account
+
     @staticmethod
     def _send(email, subject, body):
         try:
@@ -88,8 +91,4 @@ class Email:
         existing_account = EmailAccount.objects.filter(handle__iexact=email).first()
         if existing_account:
             return existing_account
-        sp = email.split("@", 1)
-        if len(sp) != 2:
-            return None
-        account = EmailAccount(handle=email, uid=sp[0], domain=sp[1])
-        return account
+        return Email.new_account(email)
diff --git a/mastodon/models/mastodon.py b/mastodon/models/mastodon.py
index d1640351..8ad0fd2b 100644
--- a/mastodon/models/mastodon.py
+++ b/mastodon/models/mastodon.py
@@ -2,17 +2,14 @@ import functools
 import random
 import re
 import string
-import time
 import typing
 from enum import StrEnum
 from urllib.parse import quote
 
 import django_rq
-import httpx
 import requests
 from django.conf import settings
 from django.core.cache import cache
-from django.core.files.base import ContentFile
 from django.db import models
 from django.db.models import Count
 from django.http import HttpRequest
@@ -24,6 +21,7 @@ from django.utils.translation import gettext_lazy as _
 from loguru import logger
 
 from catalog.common import jsondata
+from takahe.utils import Takahe
 
 from .common import SocialAccount
 
@@ -395,7 +393,7 @@ def verify_client(mast_app):
 def obtain_token(site, code, request):
     """Returns token if success else None."""
     mast_app = MastodonApplication.objects.get(domain_name=site)
-    redirect_uri = request.build_absolute_uri(reverse("users:login_oauth"))
+    redirect_uri = request.build_absolute_uri(reverse("mastodon:oauth"))
     payload = {
         "client_id": mast_app.client_id,
         "client_secret": mast_app.client_secret,
@@ -520,7 +518,7 @@ def get_or_create_fediverse_application(login_domain):
 
 
 def get_mastodon_login_url(app, login_domain, request):
-    url = request.build_absolute_uri(reverse("users:login_oauth"))
+    url = request.build_absolute_uri(reverse("mastodon:oauth"))
     version = app.server_version or ""
     scope = (
         settings.MASTODON_LEGACY_CLIENT_SCOPE
@@ -838,3 +836,6 @@ class MastodonAccount(SocialAccount):
             spoiler_text,
             attachments,
         )
+
+    def sync_later(self):
+        Takahe.fetch_remote_identity(self.handle)
diff --git a/mastodon/models/threads.py b/mastodon/models/threads.py
index 19d72a60..979e4664 100644
--- a/mastodon/models/threads.py
+++ b/mastodon/models/threads.py
@@ -1,9 +1,208 @@
+import functools
+from datetime import timedelta
+
+import requests
+from django.conf import settings
+from django.http import HttpRequest
+from django.urls import reverse
+from django.utils import timezone
+from loguru import logger
+
+from catalog.common import jsondata
+
 from .common import SocialAccount
 
+get = functools.partial(
+    requests.get,
+    timeout=settings.MASTODON_TIMEOUT,
+    headers={"User-Agent": settings.NEODB_USER_AGENT},
+)
+put = functools.partial(
+    requests.put,
+    timeout=settings.MASTODON_TIMEOUT,
+    headers={"User-Agent": settings.NEODB_USER_AGENT},
+)
+post = functools.partial(
+    requests.post,
+    timeout=settings.MASTODON_TIMEOUT,
+    headers={"User-Agent": settings.NEODB_USER_AGENT},
+)
+delete = functools.partial(
+    requests.post,
+    timeout=settings.MASTODON_TIMEOUT,
+    headers={"User-Agent": settings.NEODB_USER_AGENT},
+)
+
 
 class Threads:
-    pass
+    SCOPE = "threads_basic,threads_content_publish"
+    DOMAIN = "threads.net"
+
+    @staticmethod
+    def generate_auth_url(request: HttpRequest):
+        redirect_url = request.build_absolute_uri(reverse("mastodon:threads_oauth"))
+        url = f"https://threads.net/oauth/authorize?client_id={settings.THREADS_APP_ID}&redirect_uri={redirect_url}&scope={Threads.SCOPE}&response_type=code"
+        return url
+
+    @staticmethod
+    def obtain_token(
+        request: HttpRequest, code: str
+    ) -> tuple[str, int, str] | tuple[None, None, None]:
+        redirect_url = request.build_absolute_uri(reverse("mastodon:threads_oauth"))
+        payload = {
+            "client_id": settings.THREADS_APP_ID,
+            "client_secret": settings.THREADS_APP_SECRET,
+            "redirect_uri": redirect_url,
+            "grant_type": "authorization_code",
+            "code": code,
+        }
+        url = "https://graph.threads.net/oauth/access_token"
+        try:
+            response = post(url, data=payload)
+        except Exception as e:
+            logger.warning(f"Error {url} {e}")
+            return None, None, None
+        if response.status_code != 200:
+            logger.warning(f"Error {url} {response.status_code}")
+            return None, None, None
+        data = response.json()
+        if data.get("error_type"):
+            logger.warning(f"Error {url} {data}")
+            return None, None, None
+        short_token = data.get("access_token")
+        user_id = data.get("user_id")
+
+        # exchange for a 60-days token
+        url = f"https://graph.threads.net/access_token?grant_type=th_exchange_token&client_secret={settings.THREADS_APP_SECRET}&access_token={short_token}"
+        try:
+            response = get(url)
+        except Exception as e:
+            logger.warning(f"Error {url} {e}")
+            return None, None, None
+        if response.status_code != 200:
+            logger.warning(f"Error {url} {response.status_code}")
+            return None, None, None
+        data = response.json()
+        if data.get("error_type"):
+            logger.warning(f"Error {url} {data}")
+            return None, None, None
+        return data.get("access_token"), data.get("expires_in"), str(user_id)
+
+    @staticmethod
+    def refresh_token(token: str) -> tuple[str, int] | tuple[None, None]:
+        url = f"https://graph.threads.net/refresh_access_token?grant_type=th_refresh_token&access_token={token}"
+        try:
+            response = get(url)
+        except Exception as e:
+            logger.warning(f"Error {url} {e}")
+            return None, None
+        if response.status_code != 200:
+            logger.warning(f"Error {url} {response.status_code}")
+            return None, None
+        data = response.json()
+        if data.get("error_type"):
+            logger.warning(f"Error {url} {data}")
+            return None, None
+        return data.get("access_token"), data.get("expires_in")
+
+    @staticmethod
+    def get_profile(
+        token: str, user_id: str | None = None
+    ) -> dict[str, str | int] | None:
+        url = f'https://graph.threads.net/v1.0/{user_id or "me"}?fields=id,username,name,threads_profile_picture_url,threads_biography&access_token={token}'
+        try:
+            response = get(url)
+        except Exception as e:
+            logger.warning(f"Error {url} {e}")
+            return None
+        if response.status_code != 200:
+            logger.warning(f"Error {url} {response.status_code}")
+            return None
+        data = response.json()
+        if data.get("error_type"):
+            logger.warning(f"Error {url} {data}")
+            return None
+        return data
+
+    @staticmethod
+    def authenticate(request: HttpRequest, code: str) -> "ThreadsAccount | None":
+        token, expire, uid = Threads.obtain_token(request, code)
+        if not token or not expire:
+            return None
+        expires_at = timezone.now() + timedelta(seconds=expire)
+        existing_account = ThreadsAccount.objects.filter(
+            uid=uid, domain=Threads.DOMAIN
+        ).first()
+        if existing_account:
+            existing_account.access_token = token
+            existing_account.token_expires_at = expires_at
+            existing_account.last_reachable = timezone.now()
+            existing_account.save(update_fields=["access_data", "last_reachable"])
+            existing_account.refresh()
+            return existing_account
+        account = ThreadsAccount()
+        account.uid = uid
+        account.access_token = token
+        account.domain = Threads.DOMAIN
+        account.token_expires_at = expires_at
+        account.refresh(save=False)
+        return account
 
 
 class ThreadsAccount(SocialAccount):
-    pass
+    access_token = jsondata.EncryptedTextField(
+        json_field_name="access_data", default=""
+    )
+    token_expires_at = jsondata.DateTimeField(json_field_name="access_data", null=True)
+    username = jsondata.CharField(json_field_name="account_data", default="")
+    threads_profile_picture_url = jsondata.CharField(
+        json_field_name="account_data", default=""
+    )
+    threads_biography = jsondata.CharField(json_field_name="account_data", default="")
+
+    @property
+    def url(self):
+        return f"https://threads.net/@{self.handle}"
+
+    def check_alive(self, save=True) -> bool:
+        # refresh token
+        if not self.access_token:
+            logger.warning(f"{self} token missing")
+            return False
+        if self.token_expires_at and timezone.now() > self.token_expires_at:
+            logger.warning(f"{self} token expired")
+            return False
+        if self.last_reachable and timezone.now() < self.last_reachable + timedelta(
+            hours=1
+        ):
+            return True
+        token, expire = Threads.refresh_token(self.access_token)
+        if not token or not expire:
+            return False
+        self.access_token = token
+        self.last_reachable = timezone.now()
+        self.token_expires_at = self.last_reachable + timedelta(seconds=expire)
+        if save:
+            self.save(update_fields=["access_data", "last_reachable"])
+        return True
+
+    def refresh(self, save=True) -> bool:
+        if not self.access_token:
+            logger.warning(f"{self} token missing")
+            return False
+        if self.token_expires_at and timezone.now() > self.token_expires_at:
+            logger.warning(f"{self} token expired")
+            return False
+        data = Threads.get_profile(self.access_token)
+        if not data:
+            logger.warning("{self} unable to get profile")
+            return False
+        if self.handle != data["username"]:
+            if self.handle:
+                logger.info(f'{self} handle changed to {data["username"]}')
+            self.handle = data["username"]
+        self.account_data = data
+        self.last_refresh = timezone.now()
+        if save:
+            self.save(update_fields=["account_data", "handle", "last_refresh"])
+        return True
diff --git a/mastodon/urls.py b/mastodon/urls.py
new file mode 100644
index 00000000..47bce3d3
--- /dev/null
+++ b/mastodon/urls.py
@@ -0,0 +1,23 @@
+from django.urls import path
+
+from .views import *
+
+app_name = "mastodon"
+urlpatterns = [
+    # Mastodon
+    path("login/oauth", mastodon_oauth, name="oauth"),
+    path("mastodon/login", mastodon_login, name="login"),
+    path("mastodon/reconnect", mastodon_reconnect, name="reconnect"),
+    path("mastodon/disconnect", mastodon_disconnect, name="mastodon_disconnect"),
+    # Email
+    path("email/login", email_login, name="email_login"),
+    path("email/verify", email_verify, name="email_verify"),
+    # Threads
+    path("threads/login", threads_login, name="threads_login"),
+    path("threads/oauth", threads_oauth, name="threads_oauth"),
+    path("threads/reconnect", threads_reconnect, name="threads_reconnect"),
+    path("threads/disconnect", threads_disconnect, name="threads_disconnect"),
+    path("threads/uninstall", threads_uninstall, name="threads_uninstall"),
+    path("threads/delete", threads_delete, name="threads_delete"),
+    # Bluesky
+]
diff --git a/mastodon/views/__init__.py b/mastodon/views/__init__.py
new file mode 100644
index 00000000..032dd573
--- /dev/null
+++ b/mastodon/views/__init__.py
@@ -0,0 +1,3 @@
+from .email import *
+from .mastodon import *
+from .threads import *
diff --git a/mastodon/views/common.py b/mastodon/views/common.py
new file mode 100644
index 00000000..bdb7d473
--- /dev/null
+++ b/mastodon/views/common.py
@@ -0,0 +1,86 @@
+from django.contrib import messages
+from django.contrib.auth import authenticate
+from django.db import transaction
+from django.http import HttpRequest
+from django.shortcuts import redirect, render
+from django.urls import reverse
+from django.utils.translation import gettext as _
+
+from common.views import render_error
+from mastodon.models.common import SocialAccount
+from users.views.account import auth_login, logout_takahe
+
+
+def process_verified_account(request: HttpRequest, account: SocialAccount):
+    if request.user.is_authenticated:
+        # add/update linked identity
+        return reconnect_account(request, account)
+    if account.user:
+        # existing user
+        return login_existing_user(request, account)
+    else:
+        # check invite and ask for username
+        return register_new_user(request, account)
+
+
+def login_existing_user(request: HttpRequest, account: SocialAccount):
+    user = authenticate(request, social_account=account)
+    if not user:
+        return render_error(_("Authentication failed"), _("Invalid user."))
+    existing_user = account.user
+    auth_login(request, existing_user)
+    account.sync_later()
+    if not existing_user.username or not existing_user.identity:
+        # this should not happen
+        response = redirect(reverse("users:register"))
+    else:
+        response = redirect(request.session.get("next_url", reverse("common:home")))
+        request.session.pop("next_url", None)
+    return logout_takahe(response)
+
+
+def register_new_user(request: HttpRequest, account: SocialAccount):
+    if request.user.is_authenticated:
+        return render_error(_("Registration failed"), _("User already logged in."))
+    request.session["verified_account"] = account.to_dict()
+    return redirect(reverse("users:register"))
+
+
+def reconnect_account(request, account: SocialAccount):
+    if account.user == request.user:
+        return render_error(
+            request, _("Unable to update login information: identical identity.")
+        )
+    elif account.user:
+        return render_error(
+            request, _("Unable to update login information: identity in use.")
+        )
+    else:
+        # TODO add confirmation screen
+        request.user.reconnect_account(account)
+        if request.session.get("new_user", 0):
+            # new user finishes linking email
+            del request.session["new_user"]
+            return render(request, "users/welcome.html")
+        else:
+            account.sync_later()
+            messages.add_message(
+                request,
+                messages.INFO,
+                _("Login information updated.") + account.handle,
+            )
+            return redirect(reverse("users:info"))
+
+
+def disconnect_identity(request, account):
+    if not account:
+        return render_error(_("Disconnect identity failed"), _("Identity not found."))
+    if request.user != account.user:
+        return render_error(_("Disconnect identity failed"), _("Invalid user."))
+    with transaction.atomic():
+        if request.user.social_accounts.all().count() <= 1:
+            return render_error(
+                _("Unlink identity failed"), _("Unable to unlink last login identity.")
+            )
+        account.delete()
+    return redirect(reverse("users:info"))
diff --git a/mastodon/views/email.py b/mastodon/views/email.py
new file mode 100644
index 00000000..866cd8ba
--- /dev/null
+++ b/mastodon/views/email.py
@@ -0,0 +1,56 @@
+from django.core.validators import EmailValidator
+from django.http import HttpRequest
+from django.shortcuts import render
+from django.utils.translation import gettext as _
+from django.views.decorators.http import require_http_methods
+
+from common.views import render_error
+
+from ..models import Email
+from .common import process_verified_account
+
+
+@require_http_methods(["POST"])
+def email_login(request: HttpRequest):
+    login_email = request.POST.get("email", "")
+    try:
+        EmailValidator()(login_email)
+    except Exception:
+        return render_error(request, _("Invalid email address"))
+    Email.send_login_email(request, login_email, "login")
+    return render(
+        request,
+        "users/verify.html",
+        {
+            "msg": _("Verification"),
+            "secondary_msg": _(
+                "Verification email is being sent, please check your inbox."
+            ),
+            "action": "login",
+        },
+    )
+
+
+@require_http_methods(["GET", "POST"])
+def email_verify(request: HttpRequest):
+    if request.method == "GET":
+        return render(request, "users/verify.html")
+    code = request.POST.get("code", "").strip()
+    if not code:
+        return render(
+            request,
+            "users/verify.html",
+            {
+                "error": _("Invalid verification code"),
+            },
+        )
+    account = Email.authenticate(request, code)
+    if not account:
+        return render(
+            request,
+            "users/verify.html",
+            {
+                "error": _("Invalid verification code"),
+            },
+        )
+    return process_verified_account(request, account)
diff --git a/mastodon/views/mastodon.py b/mastodon/views/mastodon.py
new file mode 100644
index 00000000..cdda4a7c
--- /dev/null
+++ b/mastodon/views/mastodon.py
@@ -0,0 +1,80 @@
+from django.contrib.auth.decorators import login_required
+from django.core.exceptions import BadRequest, ObjectDoesNotExist
+from django.shortcuts import redirect
+from django.utils.translation import gettext as _
+from django.views.decorators.http import require_http_methods
+
+from common.views import render_error
+from mastodon.models import Mastodon
+from mastodon.views.common import disconnect_identity, process_verified_account
+
+
+@require_http_methods(["GET", "POST"])
+def mastodon_login(request):
+    """verify mastodon api server and redirect"""
+    login_domain = request.POST.get("domain") or request.GET.get("domain")
+    if not login_domain:
+        return render_error(request, _("Missing instance domain"))
+    login_domain = (
+        login_domain.strip().lower().split("//")[-1].split("/")[0].split("@")[-1]
+    )
+    try:
+        login_url = Mastodon.generate_auth_url(login_domain, request)
+        return redirect(login_url)
+    except Exception as e:
+        return render_error(
+            request, _("Error connecting to instance"), f"{login_domain} {e}"
+        )
+
+
+@require_http_methods(["GET"])
+def mastodon_oauth(request):
+    """handle redirect back from mastodon api server"""
+    code = request.GET.get("code")
+    if not code:
+        return render_error(
+            request,
+            _("Authentication failed"),
+            _("Invalid response from Fediverse instance."),
+        )
+    site = request.session.get("mastodon_domain")
+    if not site:
+        return render_error(
+            request,
+            _("Authentication failed"),
+            _("Invalid cookie data."),
+        )
+    try:
+        token, refresh_token = Mastodon.obtain_token(site, code, request)
+    except ObjectDoesNotExist:
+        raise BadRequest(_("Invalid instance domain"))
+    if not token:
+        return render_error(
+            request,
+            _("Authentication failed"),
+            _("Invalid token from Fediverse instance."),
+        )
+    account = Mastodon.authenticate(site, token, refresh_token)
+    if not account:
+        return render_error(
+            request,
+            _("Authentication failed"),
+            _("Invalid account data from Fediverse instance."),
+        )
+    return process_verified_account(request, account)
+
+
+@login_required
+@require_http_methods(["POST"])
+def mastodon_reconnect(request):
+    """relink to another mastodon from an existing logged-in user"""
+    if request.META.get("HTTP_AUTHORIZATION"):
+        raise BadRequest("Only for web login")
+    return mastodon_login(request)
+
+
+@require_http_methods(["POST"])
+@login_required
+def mastodon_disconnect(request):
+    """unlink mastodon from an existing logged-in user"""
+    return disconnect_identity(request, request.user.mastodon)
diff --git a/mastodon/views/threads.py b/mastodon/views/threads.py
new file mode 100644
index 00000000..27100dfe
--- /dev/null
+++ b/mastodon/views/threads.py
@@ -0,0 +1,57 @@
+from django.contrib.auth.decorators import login_required
+from django.http import HttpRequest
+from django.shortcuts import redirect
+from django.urls import reverse
+from django.utils.translation import gettext as _
+from django.views.decorators.http import require_http_methods
+
+from common.views import render_error
+
+from ..models import Threads
+from .common import disconnect_identity, process_verified_account
+
+
+@require_http_methods(["POST"])
+def threads_login(request: HttpRequest):
+    """start login process via threads"""
+    return redirect(Threads.generate_auth_url(request))
+
+
+@require_http_methods(["POST"])
+@login_required
+def threads_reconnect(request: HttpRequest):
+    """link another threads to an existing logged-in user"""
+    return redirect(Threads.generate_auth_url(request))
+
+
+@require_http_methods(["POST"])
+@login_required
+def threads_disconnect(request):
+    """unlink threads from an existing logged-in user"""
+    return disconnect_identity(request, request.user.threads)
+
+
+@require_http_methods(["GET"])
+def threads_oauth(request: HttpRequest):
+    """handle redirect back from threads"""
+    code = request.GET.get("code")
+    if not code:
+        return render_error(
+            _("Authentication failed"), request.GET.get("error_description", "")
+        )
+    account = Threads.authenticate(request, code)
+    if not account:
+        return render_error(
+            _("Authentication failed"), _("Invalid account data from Threads.")
+        )
+    return process_verified_account(request, account)
+
+
+@require_http_methods(["GET"])
+def threads_uninstall(request: HttpRequest):
+    return redirect(reverse("users:data"))
+
+
+@require_http_methods(["GET"])
+def threads_delete(request: HttpRequest):
+    return redirect(reverse("users:data"))
diff --git a/pyproject.toml b/pyproject.toml
index 409f5470..8c3d33de 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,7 +55,8 @@ dependencies = [
     "urlman",
     "validators",
     "deepmerge>=1.1.1",
-    "django-typed-models>=0.14.0",
+    "django-typed-models @ git+https://github.com/alphatownsman/django-typed-models.git",
+    "atproto>=0.0.48",
 ]
 
 [tool.rye]
@@ -93,7 +94,7 @@ django_settings_module = "boofilsic.settings"
 
 [tool.ruff]
 exclude = ["neodb-takahe/*", "media", ".venv", ".git", "playground", "**/tests.py", "neodb", "**/migrations", "**/commands", "**/importers", "**/sites", "legacy" ]
-lint.ignore = ["F401", "F403", "F405"]
+lint.ignore = ["F403", "F405"]
 
 [tool.setuptools]
 py-modules = []
diff --git a/requirements-dev.lock b/requirements-dev.lock
index 1cff2b0d..6fabdfa7 100644
--- a/requirements-dev.lock
+++ b/requirements-dev.lock
@@ -20,6 +20,7 @@ asgiref==3.8.1
     # via django
     # via django-cors-headers
     # via django-stubs
+atproto==0.0.48
 attrs==23.2.0
     # via aiohttp
 babel==2.15.0
@@ -44,6 +45,7 @@ cfgv==3.4.0
 charset-normalizer==3.3.2
     # via requests
 click==8.1.7
+    # via atproto
     # via black
     # via djlint
     # via mkdocs
@@ -52,6 +54,7 @@ colorama==0.4.6
     # via djlint
     # via mkdocs-material
 cryptography==42.0.8
+    # via atproto
     # via jwcrypto
 cssbeautifier==1.15.1
     # via djlint
@@ -103,11 +106,12 @@ django-slack==5.19.0
 django-stubs==5.0.2
 django-stubs-ext==5.0.2
     # via django-stubs
-django-typed-models==0.14.0
+django-typed-models @ git+https://github.com/alphatownsman/django-typed-models.git@03921e05b39d07d143519a435259f66387a088bc
 django-tz-detect==0.5.0
 django-user-messages==1.0.0
 djlint==1.34.1
 dnspython==2.6.1
+    # via atproto
 easy-thumbnails==2.8.5
 editorconfig==0.12.4
     # via cssbeautifier
@@ -131,7 +135,8 @@ html-void-elements==0.1.0
     # via djlint
 httpcore==1.0.5
     # via httpx
-httpx==0.27.0
+httpx==0.26.0
+    # via atproto
 identify==2.5.36
     # via pre-commit
 idna==3.7
@@ -152,6 +157,8 @@ json5==0.9.25
 jwcrypto==1.5.6
     # via django-oauth-toolkit
 langdetect==1.0.9
+libipld==1.2.3
+    # via atproto
 libsass==0.23.0
 listparser==0.20
 loguru==0.7.2
@@ -214,6 +221,7 @@ psycopg2-binary==2.9.9
 pycparser==2.22
     # via cffi
 pydantic==2.7.3
+    # via atproto
     # via django-ninja
 pydantic-core==2.18.4
     # via pydantic
@@ -287,6 +295,7 @@ types-pyyaml==6.0.12.20240311
     # via django-stubs
 typesense==0.21.0
 typing-extensions==4.12.1
+    # via atproto
     # via django-stubs
     # via django-stubs-ext
     # via jwcrypto
@@ -307,5 +316,7 @@ watchdog==4.0.1
 webencodings==0.5.1
     # via bleach
     # via tinycss2
+websockets==12.0
+    # via atproto
 yarl==1.9.4
     # via aiohttp
diff --git a/requirements.lock b/requirements.lock
index e8050b2e..852c0750 100644
--- a/requirements.lock
+++ b/requirements.lock
@@ -19,6 +19,7 @@ anyio==4.4.0
 asgiref==3.8.1
     # via django
     # via django-cors-headers
+atproto==0.0.48
 attrs==23.2.0
     # via aiohttp
 beautifulsoup4==4.12.3
@@ -38,8 +39,10 @@ cffi==1.16.0
 charset-normalizer==3.3.2
     # via requests
 click==8.1.7
+    # via atproto
     # via rq
 cryptography==42.0.8
+    # via atproto
     # via jwcrypto
 dateparser==1.2.0
 deepmerge==1.1.1
@@ -82,10 +85,11 @@ django-rq==2.10.2
 django-sass-processor==1.4.1
 django-simple-history==3.7.0
 django-slack==5.19.0
-django-typed-models==0.14.0
+django-typed-models @ git+https://github.com/alphatownsman/django-typed-models.git@03921e05b39d07d143519a435259f66387a088bc
 django-tz-detect==0.5.0
 django-user-messages==1.0.0
 dnspython==2.6.1
+    # via atproto
 easy-thumbnails==2.8.5
 et-xmlfile==1.1.0
     # via openpyxl
@@ -98,7 +102,8 @@ h11==0.14.0
     # via httpcore
 httpcore==1.0.5
     # via httpx
-httpx==0.27.0
+httpx==0.26.0
+    # via atproto
 idna==3.7
     # via anyio
     # via httpx
@@ -108,6 +113,8 @@ igdb-api-v4==0.3.2
 jwcrypto==1.5.6
     # via django-oauth-toolkit
 langdetect==1.0.9
+libipld==1.2.3
+    # via atproto
 libsass==0.23.0
 listparser==0.20
 loguru==0.7.2
@@ -135,6 +142,7 @@ psycopg2-binary==2.9.9
 pycparser==2.22
     # via cffi
 pydantic==2.7.3
+    # via atproto
     # via django-ninja
 pydantic-core==2.18.4
     # via pydantic
@@ -184,6 +192,7 @@ tinycss2==1.1.1
 tqdm==4.66.4
 typesense==0.21.0
 typing-extensions==4.12.1
+    # via atproto
     # via jwcrypto
     # via pydantic
     # via pydantic-core
@@ -198,5 +207,7 @@ validators==0.28.3
 webencodings==0.5.1
     # via bleach
     # via tinycss2
+websockets==12.0
+    # via atproto
 yarl==1.9.4
     # via aiohttp
diff --git a/social/tests.py b/social/tests.py
index a9e5d100..fae3b0fd 100644
--- a/social/tests.py
+++ b/social/tests.py
@@ -15,12 +15,8 @@ class SocialTest(TestCase):
         self.book1 = Edition.objects.create(title="Hyperion")
         self.book2 = Edition.objects.create(title="Andymion")
         self.movie = Edition.objects.create(title="Fight Club")
-        self.alice = User.register(
-            username="Alice", mastodon_site="MySpace", mastodon_username="Alice"
-        )
-        self.bob = User.register(
-            username="Bob", mastodon_site="KKCity", mastodon_username="Bob"
-        )
+        self.alice = User.register(username="Alice")
+        self.bob = User.register(username="Bob")
 
     def test_timeline(self):
         alice_feed = self.alice.identity.activity_manager
diff --git a/takahe/ap_handlers.py b/takahe/ap_handlers.py
index 30269cea..48a9fc98 100644
--- a/takahe/ap_handlers.py
+++ b/takahe/ap_handlers.py
@@ -7,7 +7,6 @@ from loguru import logger
 from catalog.common import *
 from journal.models import (
     Comment,
-    Content,
     Note,
     Piece,
     PieceInteraction,
@@ -18,7 +17,7 @@ from journal.models import (
 from users.middlewares import activate_language_for_user
 from users.models.apidentity import APIdentity
 
-from .models import Follow, Identity, Post, TimelineEvent
+from .models import Identity, Post, TimelineEvent
 from .utils import Takahe
 
 _supported_ap_catalog_item_types = [
@@ -155,7 +154,8 @@ def post_interacted(interaction_pk, interaction, post_pk, identity_pk):
     if (
         interaction == "boost"
         and p.local
-        and p.owner.user.mastodon_acct == apid.full_handle
+        and p.owner.user.mastodon
+        and p.owner.user.mastodon.handle == apid.full_handle
     ):
         # ignore boost by oneself
         TimelineEvent.objects.filter(
diff --git a/takahe/utils.py b/takahe/utils.py
index e1c5d9ce..e61b8b28 100644
--- a/takahe/utils.py
+++ b/takahe/utils.py
@@ -628,8 +628,6 @@ class Takahe:
 
     @staticmethod
     def post_mark(mark, share_as_new_post: bool, append_content="") -> Post | None:
-        from catalog.common import ItemCategory
-
         user = mark.owner.user
         stars = _rating_to_emoji(mark.rating_grade, 1)
         item_link = f"{settings.SITE_INFO['site_url']}/~neodb~{mark.item.url}"
@@ -804,7 +802,7 @@ class Takahe:
         return FediverseHtmlParser(linebreaks_filter(txt)).html
 
     @staticmethod
-    def update_state(obj: Post | Relay, state: str):
+    def update_state(obj: Post | Relay | Identity, state: str):
         obj.state = state
         obj.state_changed = timezone.now()
         obj.state_next_attempt = None
diff --git a/users/account.py b/users/account.py
deleted file mode 100644
index 9d1388ba..00000000
--- a/users/account.py
+++ /dev/null
@@ -1,509 +0,0 @@
-from datetime import timedelta
-from urllib.parse import quote
-
-import django_rq
-from django import forms
-from django.conf import settings
-from django.contrib import auth, messages
-from django.contrib.auth import authenticate
-from django.contrib.auth.decorators import login_required
-from django.core.exceptions import BadRequest, ObjectDoesNotExist
-from django.core.validators import EmailValidator
-from django.db import transaction
-from django.shortcuts import redirect, render
-from django.urls import reverse
-from django.utils import timezone
-from django.utils.translation import gettext as _
-from django.views.decorators.http import require_http_methods
-from loguru import logger
-
-from common.config import *
-from common.utils import AuthedHttpRequest
-from journal.models import remove_data_by_user
-from mastodon.models import Email, Mastodon
-from mastodon.models.common import Platform, SocialAccount
-from mastodon.models.email import EmailAccount
-from takahe.utils import Takahe
-
-from .models import User
-from .tasks import *
-
-
-@require_http_methods(["GET"])
-def login(request):
-    selected_domain = request.GET.get("domain", default="")
-    sites = Mastodon.get_sites()
-    if request.GET.get("next"):
-        request.session["next_url"] = request.GET.get("next")
-    invite_status = -1 if settings.INVITE_ONLY else 0
-    if settings.INVITE_ONLY and request.GET.get("invite"):
-        if Takahe.verify_invite(request.GET.get("invite")):
-            invite_status = 1
-            request.session["invite"] = request.GET.get("invite")
-        else:
-            invite_status = -2
-    return render(
-        request,
-        "users/login.html",
-        {
-            "sites": sites,
-            "scope": quote(settings.MASTODON_CLIENT_SCOPE),
-            "selected_domain": selected_domain,
-            "allow_any_site": settings.MASTODON_ALLOW_ANY_SITE,
-            "enable_email": settings.ENABLE_LOGIN_EMAIL,
-            "enable_threads": settings.ENABLE_LOGIN_THREADS,
-            "enable_bluesky": settings.ENABLE_LOGIN_BLUESKY,
-            "invite_status": invite_status,
-        },
-    )
-
-
-# connect will send verification email or redirect to mastodon server
-@require_http_methods(["GET", "POST"])
-def connect(request):
-    if request.method == "POST" and request.POST.get("method") == "email":
-        login_email = request.POST.get("email", "")
-        try:
-            EmailValidator()(login_email)
-        except Exception:
-            return render(
-                request,
-                "common/error.html",
-                {"msg": _("Invalid email address")},
-            )
-        Email.send_login_email(request, login_email, "login")
-        return render(
-            request,
-            "users/verify.html",
-            {
-                "msg": _("Verification"),
-                "secondary_msg": _(
-                    "Verification email is being sent, please check your inbox."
-                ),
-                "action": "login",
-            },
-        )
-    login_domain = (
-        request.session["swap_domain"]
-        if request.session.get("swap_login")
-        else (request.POST.get("domain") or request.GET.get("domain"))
-    )
-    if not login_domain:
-        return render(
-            request,
-            "common/error.html",
-            {
-                "msg": _("Missing instance domain"),
-                "secondary_msg": "",
-            },
-        )
-    login_domain = (
-        login_domain.strip().lower().split("//")[-1].split("/")[0].split("@")[-1]
-    )
-    try:
-        login_url = Mastodon.generate_auth_url(login_domain, request)
-        return redirect(login_url)
-    except Exception as e:
-        return render(
-            request,
-            "common/error.html",
-            {
-                "msg": _("Error connecting to instance"),
-                "secondary_msg": f"{login_domain} {e}",
-            },
-        )
-
-
-# mastodon server redirect back to here
-@require_http_methods(["GET"])
-def connect_redirect_back(request):
-    code = request.GET.get("code")
-    if not code:
-        return render(
-            request,
-            "common/error.html",
-            {
-                "msg": _("Authentication failed"),
-                "secondary_msg": _("Invalid response from Fediverse instance."),
-            },
-        )
-    site = request.session.get("mastodon_domain")
-    if not site:
-        return render(
-            request,
-            "common/error.html",
-            {
-                "msg": _("Authentication failed"),
-                "secondary_msg": _("Invalid cookie data."),
-            },
-        )
-    try:
-        token, refresh_token = Mastodon.obtain_token(site, code, request)
-    except ObjectDoesNotExist:
-        raise BadRequest(_("Invalid instance domain"))
-    if not token:
-        return render(
-            request,
-            "common/error.html",
-            {
-                "msg": _("Authentication failed"),
-                "secondary_msg": _("Invalid token from Fediverse instance."),
-            },
-        )
-
-    if request.session.get("swap_login", False) and request.user.is_authenticated:
-        # swap login for existing user
-        return swap_login(request, token, site, refresh_token)
-
-    account = Mastodon.authenticate(site, token, refresh_token)
-    if not account:
-        return render(
-            request,
-            "common/error.html",
-            {
-                "msg": _("Authentication failed"),
-                "secondary_msg": _("Invalid account data from Fediverse instance."),
-            },
-        )
-    if account.user:  # existing user
-        user: User | None = authenticate(request, social_account=account)  # type: ignore
-        if not user:
-            return render(
-                request,
-                "common/error.html",
-                {
-                    "msg": _("Authentication failed"),
-                    "secondary_msg": _("Invalid user."),
-                },
-            )
-        return login_existing_user(request, user)
-    elif not settings.MASTODON_ALLOW_ANY_SITE:  # directly create a new user
-        new_user = User.register(
-            account=account,
-            username=account.username,
-        )
-        auth_login(request, new_user)
-        return render(request, "users/welcome.html")
-    else:  # check invite and ask for username
-        return register_new_user(request, account)
-
-
-def register_new_user(request, account: SocialAccount):
-    if settings.INVITE_ONLY:
-        if not Takahe.verify_invite(request.session.get("invite")):
-            return render(
-                request,
-                "common/error.html",
-                {
-                    "msg": _("Authentication failed"),
-                    "secondary_msg": _("Registration is for invitation only"),
-                },
-            )
-        del request.session["invite"]
-    if request.user.is_authenticated:
-        auth.logout(request)
-    request.session["verified_account"] = account.to_dict()
-    if account.platform == Platform.EMAIL:
-        email_readyonly = True
-        data = {"email": account.handle}
-    else:
-        email_readyonly = False
-        data = {"email": ""}
-    form = RegistrationForm(data)
-    return render(
-        request,
-        "users/register.html",
-        {"form": form, "email_readyonly": email_readyonly},
-    )
-
-
-def login_existing_user(request, existing_user):
-    auth_login(request, existing_user)
-    if not existing_user.username or not existing_user.identity:
-        response = redirect(reverse("users:register"))
-    elif request.session.get("next_url") is not None:
-        response = redirect(request.session.get("next_url"))
-        del request.session["next_url"]
-    else:
-        response = redirect(reverse("common:home"))
-    response.delete_cookie(settings.TAKAHE_SESSION_COOKIE_NAME)
-    return response
-
-
-@login_required
-def logout(request):
-    return auth_logout(request)
-
-
-@login_required
-@require_http_methods(["POST"])
-def reconnect(request):
-    if request.META.get("HTTP_AUTHORIZATION"):
-        raise BadRequest("Only for web login")
-    request.session["swap_login"] = True
-    request.session["swap_domain"] = request.POST["domain"]
-    return connect(request)
-
-
-class RegistrationForm(forms.ModelForm):
-    email = forms.EmailField(required=False)
-
-    class Meta:
-        model = User
-        fields = ["username"]
-
-    def clean_username(self):
-        username = self.cleaned_data.get("username")
-        if username and self.instance and self.instance.username:
-            username = self.instance.username
-        elif (
-            username
-            and User.objects.filter(username__iexact=username)
-            .exclude(pk=self.instance.pk if self.instance else -1)
-            .exists()
-        ):
-            raise forms.ValidationError(_("This username is already in use."))
-        return username
-
-    def clean_email(self):
-        email = self.cleaned_data.get("email", "").strip()
-        if (
-            email
-            and EmailAccount.objects.filter(handle__iexact=email)
-            .exclude(user_id=self.instance.pk if self.instance else -1)
-            .exists()
-        ):
-            raise forms.ValidationError(_("This email address is already in use."))
-        return email
-
-
-@require_http_methods(["GET", "POST"])
-def verify_code(request):
-    if request.method == "GET":
-        return render(request, "users/verify.html")
-    code = request.POST.get("code", "").strip()
-    if not code:
-        return render(
-            request,
-            "users/verify.html",
-            {
-                "error": _("Invalid verification code"),
-            },
-        )
-    account = Email.authenticate(request, code)
-    if not account:
-        return render(
-            request,
-            "users/verify.html",
-            {
-                "error": _("Invalid verification code"),
-            },
-        )
-    if request.user.is_authenticated:
-        # existing logged in user to verify a pending email
-        if request.user.email_account == account:
-            # same email, nothing to do
-            return render(request, "users/welcome.html")
-        if account.user and account.user != request.user:
-            # email used by another user
-            return render(
-                request,
-                "common/error.html",
-                {
-                    "msg": _("Authentication failed"),
-                    "secondary_msg": _("Email already in use"),
-                },
-            )
-        with transaction.atomic():
-            if request.user.email_account:
-                request.user.email_account.delete()
-            account.user = request.user
-            account.save()
-            if request.session.get("new_user", 0):
-                try:
-                    del request.session["new_user"]
-                except KeyError:
-                    pass
-                return render(request, "users/welcome.html")
-            else:
-                return redirect(reverse("users:info"))
-    if account.user:
-        # existing user: log back in
-        user = authenticate(request, social_account=account)
-        if user:
-            return login_existing_user(request, user)
-        else:
-            return render(
-                request,
-                "common/error.html",
-                {
-                    "msg": _("Authentication failed"),
-                    "secondary_msg": _("Invalid user."),
-                },
-            )
-    # new user: check invite and ask for username
-    return register_new_user(request, account)
-
-
-@require_http_methods(["GET", "POST"])
-def register(request: AuthedHttpRequest):
-    if not settings.MASTODON_ALLOW_ANY_SITE:
-        return render(request, "users/welcome.html")
-    form = RegistrationForm(
-        request.POST,
-        instance=(
-            User.objects.get(pk=request.user.pk)
-            if request.user.is_authenticated
-            else None
-        ),
-    )
-    verified_account = SocialAccount.from_dict(request.session.get("verified_account"))
-    email_readonly = (
-        verified_account is not None and verified_account.platform == Platform.EMAIL
-    )
-    error = None
-    if request.method == "POST" and form.is_valid():
-        if request.user.is_authenticated:
-            # logged in user to change email
-            current_email = (
-                request.user.email_account.handle
-                if request.user.email_account
-                else None
-            )
-            if (
-                form.cleaned_data["email"]
-                and form.cleaned_data["email"] != current_email
-            ):
-                Email.send_login_email(request, form.cleaned_data["email"], "verify")
-                return render(request, "users/verify.html")
-        else:
-            # new user finishes login process
-            if not form.cleaned_data["username"]:
-                error = _("Valid username required")
-            elif User.objects.filter(
-                username__iexact=form.cleaned_data["username"]
-            ).exists():
-                error = _("Username in use")
-            else:
-                # create new user
-                new_user = User.register(
-                    username=form.cleaned_data["username"], account=verified_account
-                )
-                auth_login(request, new_user)
-                if not email_readonly and form.cleaned_data["email"]:
-                    # verify email if presented
-                    Email.send_login_email(
-                        request, form.cleaned_data["email"], "verify"
-                    )
-                    request.session["new_user"] = 1
-                    return render(request, "users/verify.html")
-                return render(request, "users/welcome.html")
-    return render(
-        request,
-        "users/register.html",
-        {"form": form, "email_readonly": email_readonly, "error": error},
-    )
-
-
-def swap_login(request, token, site, refresh_token):
-    del request.session["swap_login"]
-    del request.session["swap_domain"]
-    account = Mastodon.authenticate(site, token, refresh_token)
-    current_user = request.user
-    if account:
-        if account.user == current_user:
-            messages.add_message(
-                request,
-                messages.ERROR,
-                _("Unable to update login information: identical identity."),
-            )
-        elif account.user:
-            messages.add_message(
-                request,
-                messages.ERROR,
-                _("Unable to update login information: identity in use."),
-            )
-        else:
-            with transaction.atomic():
-                if current_user.mastodon:
-                    current_user.mastodon.delete()
-                account.user = current_user
-                account.save()
-                current_user.mastodon_username = account.username
-                current_user.mastodon_id = account.account_data["id"]
-                current_user.mastodon_site = account.domain
-                current_user.mastodon_token = account.access_token
-                current_user.mastodon_refresh_token = account.refresh_token
-                current_user.mastodon_account = account.account_data
-                current_user.save(
-                    update_fields=[
-                        "username",
-                        "mastodon_id",
-                        "mastodon_username",
-                        "mastodon_site",
-                        "mastodon_token",
-                        "mastodon_refresh_token",
-                        "mastodon_account",
-                    ]
-                )
-            django_rq.get_queue("mastodon").enqueue(
-                refresh_mastodon_data_task, current_user.pk, token
-            )
-            messages.add_message(
-                request,
-                messages.INFO,
-                _("Login information updated.") + account.handle,
-            )
-    else:
-        messages.add_message(
-            request, messages.ERROR, _("Invalid account data from Fediverse instance.")
-        )
-    return redirect(reverse("users:info"))
-
-
-def clear_preference_cache(request):
-    for key in list(request.session.keys()):
-        if key.startswith("p_"):
-            del request.session[key]
-
-
-def auth_login(request, user):
-    auth.login(request, user, backend="mastodon.auth.OAuth2Backend")
-    request.session.pop("verified_account", None)
-    clear_preference_cache(request)
-    if (
-        user.mastodon_last_refresh < timezone.now() - timedelta(hours=1)
-        or user.mastodon_account == {}
-    ):
-        django_rq.get_queue("mastodon").enqueue(refresh_mastodon_data_task, user.pk)
-
-
-def auth_logout(request):
-    auth.logout(request)
-    response = redirect("/")
-    response.delete_cookie(settings.TAKAHE_SESSION_COOKIE_NAME)
-    return response
-
-
-def clear_data_task(user_id):
-    user = User.objects.get(pk=user_id)
-    user_str = str(user)
-    if user.identity:
-        remove_data_by_user(user.identity)
-    Takahe.delete_identity(user.identity.pk)
-    user.clear()
-    logger.warning(f"User {user_str} data cleared.")
-
-
-@login_required
-def clear_data(request):
-    if request.META.get("HTTP_AUTHORIZATION"):
-        raise BadRequest("Only for web login")
-    if request.method == "POST":
-        v = request.POST.get("verification")
-        if v and (v == request.user.mastodon_acct or v == request.user.email):
-            django_rq.get_queue("mastodon").enqueue(clear_data_task, request.user.id)
-            return auth_logout(request)
-        else:
-            messages.add_message(request, messages.ERROR, _("Account mismatch."))
-    return redirect(reverse("users:data"))
diff --git a/users/api.py b/users/api.py
index cdfdeb71..a5ac3ccf 100644
--- a/users/api.py
+++ b/users/api.py
@@ -1,12 +1,11 @@
 from ninja import Schema
-from ninja.security import django_auth
 
 from common.api import *
 
 
 class UserSchema(Schema):
     url: str
-    external_acct: str
+    external_acct: str | None
     display_name: str
     avatar: str
     username: str
@@ -22,7 +21,9 @@ def me(request):
     return 200, {
         "username": request.user.username,
         "url": settings.SITE_INFO["site_url"] + request.user.url,
-        "external_acct": request.user.mastodon_acct,
+        "external_acct": (
+            request.user.mastodon.handle if request.user.mastodon else None
+        ),
         "display_name": request.user.display_name,
         "avatar": request.user.avatar,
     }
diff --git a/users/management/commands/migrate_mastodon.py b/users/management/commands/migrate_mastodon.py
index d167f499..5a5ec3fe 100644
--- a/users/management/commands/migrate_mastodon.py
+++ b/users/management/commands/migrate_mastodon.py
@@ -14,6 +14,9 @@ class Command(BaseCommand):
     def handle(self, *args, **options):
         m = 0
         e = 0
+        qs = User.objects.filter(username__isnull=True)
+        print(f"Deleting {qs.count()} nameless users.")
+        qs.delete()
         for user in tqdm(User.objects.filter(is_active=True)):
             if user.mastodon_username:
                 MastodonAccount.objects.update_or_create(
diff --git a/users/migrations/0004_remove_user_at_least_one_login_method_and_more.py b/users/migrations/0004_remove_user_at_least_one_login_method_and_more.py
new file mode 100644
index 00000000..52494693
--- /dev/null
+++ b/users/migrations/0004_remove_user_at_least_one_login_method_and_more.py
@@ -0,0 +1,37 @@
+# Generated by Django 4.2.13 on 2024-07-02 18:06
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("users", "0003_remove_preference_no_anonymous_view"),
+    ]
+
+    operations = [
+        migrations.RemoveConstraint(
+            model_name="user",
+            name="at_least_one_login_method",
+        ),
+        migrations.RemoveConstraint(
+            model_name="user",
+            name="unique_email",
+        ),
+        migrations.RemoveConstraint(
+            model_name="user",
+            name="unique_mastodon_username",
+        ),
+        migrations.RemoveConstraint(
+            model_name="user",
+            name="unique_mastodon_id",
+        ),
+        migrations.RemoveIndex(
+            model_name="user",
+            name="users_user_mastodo_bd2db5_idx",
+        ),
+        migrations.AddIndex(
+            model_name="user",
+            index=models.Index(models.F("is_active"), name="index_user_is_active"),
+        ),
+    ]
diff --git a/users/models/user.py b/users/models/user.py
index 010c573a..00d99fe8 100644
--- a/users/models/user.py
+++ b/users/models/user.py
@@ -10,20 +10,23 @@ from django.contrib.auth.validators import UnicodeUsernameValidator
 from django.core.exceptions import ValidationError
 from django.core.files.base import ContentFile
 from django.db import models, transaction
-from django.db.models import F, Manager, Q, Value
-from django.db.models.functions import Concat, Lower
+from django.db.models.functions import Lower
 from django.urls import reverse
 from django.utils import timezone, translation
 from django.utils.deconstruct import deconstructible
 from django.utils.translation import gettext_lazy as _
 from loguru import logger
 
-from mastodon.models import EmailAccount, MastodonAccount, Platform, SocialAccount
+from mastodon.models import (
+    BlueskyAccount,
+    EmailAccount,
+    MastodonAccount,
+    SocialAccount,
+    ThreadsAccount,
+)
 from takahe.utils import Takahe
 
 if TYPE_CHECKING:
-    from mastodon.models import Mastodon
-
     from .apidentity import APIdentity
     from .preference import Preference
 
@@ -59,18 +62,31 @@ class UsernameValidator(UnicodeUsernameValidator):
 
 class UserManager(BaseUserManager):
     def create_user(self, username, email, password=None):
+        from mastodon.models import Email
+
         Takahe.get_domain()  # ensure configuration is complete
-        user = User.register(username=username, email=email)
+
+        user = User.register(username=username)
+        e = Email.new_account(email)
+        if not e:
+            raise ValueError("Invalid Email")
+        e.user = user
+        e.save()
         return user
 
     def create_superuser(self, username, email, password=None):
+        from mastodon.models import Email
         from takahe.models import User as TakaheUser
 
         Takahe.get_domain()  # ensure configuration is complete
-        user = User.register(username=username, email=email, is_superuser=True)
+        user = User.register(username=username, is_superuser=True)
+        e = Email.new_account(email)
+        if not e:
+            raise ValueError("Invalid Email")
+        e.user = user
+        e.save()
         tu = TakaheUser.objects.get(pk=user.pk, email="@" + username)
         tu.admin = True
-        tu.set_password(password)
         tu.save()
         return user
 
@@ -159,37 +175,21 @@ class User(AbstractUser):
                 Lower("username"),
                 name="unique_username",
             ),
-            models.UniqueConstraint(
-                Lower("email"),
-                name="unique_email",
-            ),
-            models.UniqueConstraint(
-                Lower("mastodon_username"),
-                Lower("mastodon_site"),
-                name="unique_mastodon_username",
-            ),
-            models.UniqueConstraint(
-                Lower("mastodon_id"),
-                Lower("mastodon_site"),
-                name="unique_mastodon_id",
-            ),
-            models.CheckConstraint(
-                check=(
-                    Q(is_active=False)
-                    | Q(mastodon_username__isnull=False)
-                    | Q(email__isnull=False)
-                ),
-                name="at_least_one_login_method",
-            ),
-        ]
-        indexes = [
-            models.Index(fields=["mastodon_site", "mastodon_username"]),
         ]
+        indexes = [models.Index("is_active", name="index_user_is_active")]
 
     @cached_property
     def mastodon(self) -> "MastodonAccount | None":
         return MastodonAccount.objects.filter(user=self).first()
 
+    @cached_property
+    def threads(self) -> "ThreadsAccount | None":
+        return ThreadsAccount.objects.filter(user=self).first()
+
+    @cached_property
+    def bluesky(self) -> "BlueskyAccount | None":
+        return BlueskyAccount.objects.filter(user=self).first()
+
     @cached_property
     def email_account(self) -> "EmailAccount | None":
         return EmailAccount.objects.filter(user=self).first()
@@ -239,34 +239,21 @@ class User(AbstractUser):
         return p.edited_time if p else None
 
     def clear(self):
-        if self.mastodon_site == "removed" and not self.is_active:
+        if not self.is_active:
             return
         with transaction.atomic():
-            self.first_name = self.mastodon_acct or ""
-            self.last_name = self.email or ""
+            accts = [str(a) for a in self.social_accounts.all()]
+            self.first_name = (";").join(accts)
+            self.last_name = self.username
             self.is_active = False
-            self.email = None
             # self.username = "~removed~" + str(self.pk)
             # to get ready for federation, username has to be reserved
-            self.mastodon_username = None
-            self.mastodon_id = None
-            self.mastodon_site = "removed"
-            self.mastodon_token = ""
-            self.mastodon_locked = False
-            self.mastodon_followers = []
-            self.mastodon_following = []
-            self.mastodon_mutes = []
-            self.mastodon_blocks = []
-            self.mastodon_domain_blocks = []
-            self.mastodon_account = {}
             self.save()
             self.identity.deleted = timezone.now()
             self.identity.save()
-            SocialAccount.objects.filter(user=self).delete()
+            self.social_accounts.all().delete()
 
     def sync_relationship(self):
-        from .apidentity import APIdentity
-
         def get_identity_ids(accts: list):
             return set(
                 MastodonAccount.objects.filter(handle__in=accts).values_list(
@@ -301,29 +288,59 @@ class User(AbstractUser):
                 Takahe.mute(me, target_identity)
 
     def sync_identity(self):
+        """sync display name, bio, and avatar from available sources"""
         identity = self.identity.takahe_identity
         if identity.deleted:
             logger.error(f"Identity {identity} is deleted, skip sync")
             return
         mastodon = self.mastodon
-        if not mastodon:
-            return
-        identity.name = mastodon.display_name or identity.name or identity.username
-        identity.summary = mastodon.note or identity.summary
-        identity.manually_approves_followers = mastodon.locked
-        if not bool(identity.icon) or identity.icon_uri != mastodon.avatar:
-            identity.icon_uri = mastodon.avatar
-            if identity.icon_uri:
+        threads = self.threads
+        # bluesky = self.bluesky
+        changed = False
+        name = (
+            (mastodon.display_name if mastodon else "")
+            or (threads.username if threads else "")
+            # or (bluesky.display_name if bluesky else "")
+            or identity.name
+            or identity.username
+        )
+        if identity.name != name:
+            identity.name = name
+            changed = True
+        summary = (
+            (mastodon.note if mastodon else "")
+            or (threads.threads_biography if threads else "")
+            # or (bluesky.note if bluesky else "")
+            or identity.summary
+        )
+        if identity.summary != summary:
+            identity.summary = summary
+            changed = True
+        identity.manually_approves_followers = (
+            mastodon.locked if mastodon else identity.manually_approves_followers
+        )
+        # it's tedious to update avatar repeatedly, so only sync it once
+        if not identity.icon:
+            url = None
+            if mastodon and mastodon.avatar:
+                url = mastodon.avatar
+            elif threads and threads.threads_profile_picture_url:
+                url = threads.threads_profile_picture_url
+            # elif bluesky and bluesky.
+            if url:
                 try:
-                    r = httpx.get(identity.icon_uri)
+                    r = httpx.get(url)
                     f = ContentFile(r.content, name=identity.icon_uri.split("/")[-1])
                     identity.icon.save(f.name, f, save=False)
+                    changed = True
                 except Exception as e:
                     logger.error(
                         f"fetch icon failed: {identity} {identity.icon_uri}",
                         extra={"exception": e},
                     )
-        identity.save()
+        if changed:
+            identity.save()
+            Takahe.update_state(identity, "outdated")
 
     def refresh_mastodon_data(self, skip_detail=False, sleep_hours=0):
         """Try refresh account data from mastodon server, return True if refreshed successfully"""
@@ -387,18 +404,12 @@ class User(AbstractUser):
 
         account = param.pop("account", None)
         with transaction.atomic():
-            if account:
-                if account.platform == Platform.MASTODON:
-                    param["mastodon_username"] = account.account_data["username"]
-                    param["mastodon_site"] = account.domain
-                    param["mastodon_id"] = account.account_data["id"]
-                elif account.platform == Platform.EMAIL:
-                    param["email"] = account.handle
             new_user = cls(**param)
             if not new_user.username:
                 raise ValueError("username is not set")
             if "language" not in param:
                 new_user.language = translation.get_language()
+            new_user.set_unusable_password()
             new_user.save()
             Preference.objects.create(user=new_user)
             if account:
@@ -406,10 +417,14 @@ class User(AbstractUser):
                 account.save()
             Takahe.init_identity_for_local_user(new_user)
             new_user.identity.shelf_manager
-            if new_user.mastodon:
-                Takahe.fetch_remote_identity(new_user.mastodon.handle)
             return new_user
 
+    def reconnect_account(self, account: SocialAccount):
+        with transaction.atomic():
+            SocialAccount.objects.filter(user=self, type=account.type).delete()
+            account.user = self
+            account.save()
+
 
 # TODO the following models should be deprecated soon
 
diff --git a/users/templates/users/account.html b/users/templates/users/account.html
index 14f52610..d3d96883 100644
--- a/users/templates/users/account.html
+++ b/users/templates/users/account.html
@@ -17,7 +17,7 @@
         {% if allow_any_site %}
           <article>
             <details>
-              <summary>{% trans 'Username, Email and Identities' %}</summary>
+              <summary>{% trans 'Username and Email' %}</summary>
               <form action="{% url 'users:register' %}?next={{ request.path }}"
                     method="post">
                 <small>{{ error }}</small>
@@ -46,16 +46,26 @@
                 {% csrf_token %}
                 <input type="submit" value="{% trans 'Save' %}" disabled id="save">
               </form>
-              <form action="{% url 'users:reconnect' %}" method="post">
+            </details>
+          </article>
+          <article>
+            <details>
+              <summary>{% trans "Fediverse (Mastodon)" %}</summary>
+              <form action="{% url 'mastodon:reconnect' %}" method="post">
                 {% csrf_token %}
                 <fieldset>
-                  {% if request.user.mastodon_acct %}
+                  {% if request.user.mastodon %}
                     <label>
-                      {% trans "Associated identities" %}
+                      <i class="fa-brands fa-mastodon"></i> {% trans "Verified Identity" %}
                       <input type="input"
-                             {% if request.user.mastodon_acct %}aria-invalid="false"{% endif %}
-                             value="{{ request.user.mastodon_acct | default:'-' }}"
+                             {% if request.user.mastodon %}aria-invalid="false"{% endif %}
+                             value="{{ request.user.mastodon.handle | default:'-' }}"
                              readonly>
+                      <small>
+                        {% if request.user.mastodon.last_refresh %}
+                          {% trans "Last updated" %} {{ request.user.mastodon.last_refresh }}
+                        {% endif %}
+                      </small>
                     </label>
                   {% else %}
                     <p>
@@ -63,7 +73,7 @@
                     </p>
                   {% endif %}
                   <label>
-                    {% if request.user.mastodon_acct %}
+                    {% if request.user.mastodon %}
                       {% trans "To associate with another federated identity, please enter the domain name of the instance where the new identity is located." %}
                     {% else %}
                       {% trans "If you have registered with a Federated instance, please enter the instance domain name." %}
@@ -79,7 +89,7 @@
                          disabled
                          id="bind" />
                   <small>
-                    {% if request.user.mastodon_acct %}
+                    {% if request.user.mastodon %}
                       {% blocktrans %}After replacing the association, you may use the new Fediverse identity to log in and control data visibility. Existing data such as tags, comments, and collections will not be affected.{% endblocktrans %}
                     {% else %}
                       {% trans "Once associated with Fediverse identity, you can discover more users and use the full features of this site." %}
@@ -89,13 +99,39 @@
               </form>
             </details>
           </article>
+          <article>
+            <details>
+              <summary>{% trans "Threads.net" %}</summary>
+              <form action="{% url 'mastodon:threads_reconnect' %}" method="post">
+                {% csrf_token %}
+                <fieldset>
+                  {% if request.user.threads %}
+                    <label>
+                      <i class="fa-brands fa-threads"></i> {% trans "Verified threads.net account" %}
+                      <input type="input"
+                             aria-invalid="false"
+                             value="{{ request.user.threads.handle }}"
+                             readonly>
+                      <small>
+                        {% if request.user.threads.last_refresh %}
+                          {% trans "Last updated" %} {{ request.user.threads.last_refresh }}
+                        {% endif %}
+                      </small>
+                    </label>
+                  {% endif %}
+                  <input type="submit"
+                         {% if request.user.threads %} value="{% trans 'Link with a different threads.net account' %}" {% else %} {% trans "Link with a threads.net account" %} {% endif %} />
+                </fieldset>
+              </form>
+            </details>
+          </article>
         {% endif %}
         <article>
           <details>
             <summary>{% trans "Display name, avatar and other information" %}</summary>
             <form action="{% url 'users:profile' %}?next={{ request.path }}"
                   method="post"
-                  {% if request.user.mastodon_acct and not request.user.preference.mastodon_skip_userinfo %}onsubmit="return confirm('{% trans "Updating profile information here will turn off automatic sync of display name, bio and avatar from your Mastodon instance. Sure to continue?" %}')"{% endif %}
+                  {% if request.user.mastodon and not request.user.preference.mastodon_skip_userinfo %}onsubmit="return confirm('{% trans "Updating profile information here will turn off automatic sync of display name, bio and avatar from your Mastodon instance. Sure to continue?" %}')"{% endif %}
                   enctype="multipart/form-data">
               {% include "_field.html" with field=profile_form.name %}
               {% include "_field.html" with field=profile_form.summary %}
@@ -176,45 +212,47 @@
                      value="{% trans 'Sync now' %}"
                      {% if not request.user.mastodon_username %}disabled{% endif %} />
               <small>
-                {% if request.user.mastodon_last_refresh %}
-                  {% trans "Last updated" %} {{ request.user.mastodon_last_refresh }}
+                {% if request.user.mastodon.last_refresh %}
+                  {% trans "Last updated" %} {{ request.user.mastodon.last_refresh }}
                 {% endif %}
               </small>
             </form>
           </details>
         </article>
-        <article>
-          <details>
-            <summary>{% trans 'Delete Account' %}</summary>
-            <form action="{% url 'users:clear_data' %}"
-                  method="post"
-                  onsubmit="return confirm('{% trans "Once deleted, account data cannot be recovered. Sure to proceed?" %}');">
-              {% csrf_token %}
-              <div>
-                {% blocktrans %}Enter full <code>username@instance.social</code> or <code>email@domain.com</code> to confirm deletion.{% endblocktrans %}
-                <input type="email"
-                       name="verification"
-                       _="on input remove [@disabled] from #delete end"
-                       value=""
-                       autocomplete="off"
-                       required
-                       aria-invalid="true"
-                       aria-describedby="invalid-helper"
-                       placeholder="Gargron@mastodon.social">
-                <small id="invalid-helper">{% trans "Once deleted, account data cannot be recovered." %}</small>
-                {% if import_status.douban_pending %}
-                  <input type="submit" value="{% trans "Importing in progress, can't delete now." %}" disabled />
-                {% else %}
-                  <input type="submit"
-                         value="{% trans 'Permanently Delete' %}"
-                         class="contrast"
-                         disabled
-                         id="delete" />
-                {% endif %}
-              </div>
-            </form>
-          </details>
-        </article>
+        {% if allow_any_site %}
+          <article>
+            <details>
+              <summary>{% trans 'Delete Account' %}</summary>
+              <form action="{% url 'users:clear_data' %}"
+                    method="post"
+                    onsubmit="return confirm('{% trans "Once deleted, account data cannot be recovered. Sure to proceed?" %}');">
+                {% csrf_token %}
+                <div>
+                  {% blocktrans %}Enter full <code>username@instance.social</code> or <code>email@domain.com</code> to confirm deletion.{% endblocktrans %}
+                  <input type="email"
+                         name="verification"
+                         _="on input remove [@disabled] from #delete end"
+                         value=""
+                         autocomplete="off"
+                         required
+                         aria-invalid="true"
+                         aria-describedby="invalid-helper"
+                         placeholder="Gargron@mastodon.social">
+                  <small id="invalid-helper">{% trans "Once deleted, account data cannot be recovered." %}</small>
+                  {% if import_status.douban_pending %}
+                    <input type="submit" value="{% trans "Importing in progress, can't delete now." %}" disabled />
+                  {% else %}
+                    <input type="submit"
+                           value="{% trans 'Permanently Delete' %}"
+                           class="contrast"
+                           disabled
+                           id="delete" />
+                  {% endif %}
+                </div>
+              </form>
+            </details>
+          </article>
+        {% endif %}
       </div>
       {% include "_sidebar.html" with show_profile=1 identity=request.user.identity %}
     </main>
diff --git a/users/templates/users/home_anonymous.html b/users/templates/users/home_anonymous.html
index 574e6f1a..f61603e6 100644
--- a/users/templates/users/home_anonymous.html
+++ b/users/templates/users/home_anonymous.html
@@ -12,10 +12,8 @@
     <meta property="og:image" content="{{ identity.avatar }}">
   </head>
   <body>
-    {% if identity.local and identity.user.mastodon_account.url %}
-      <a href="{{ identity.user.mastodon_account.url }}"
-         rel="me"
-         style="display:none">Mastodon verification</a>
+    {% if identity.local and identity.user.mastodon %}
+      <a href="{{ identity.user.mastodon.url }}" rel="me" style="display:none">Mastodon verification</a>
     {% endif %}
   </body>
 </html>
diff --git a/users/templates/users/login.html b/users/templates/users/login.html
index 356fb766..7f11b8d6 100644
--- a/users/templates/users/login.html
+++ b/users/templates/users/login.html
@@ -70,22 +70,24 @@
               </svg>
               <!--<i class="fa-brands fa-mastodon"></i>-->
             </button>
-            <!--
             {% if enable_threads %}
-            <button class="platform outline" _="on click add .outline to .platform then remove .outline from me then hide <form/> then show #login-threads" id="platform-threads" title="{% trans "Threads" %}">
-              <i class="fa-brands fa-threads"></i>
-            </button>
-            {%endif%}
+              <button class="platform outline" _="on click add .outline to .platform then remove .outline from me then hide
+                <form/>
+                then show #login-threads" id="platform-threads" title="{% trans "Threads" %}">
+                <i class="fa-brands fa-threads"></i>
+              </button>
+            {% endif %}
             {% if enable_bluesky %}
-            <button class="platform outline" _="on click add .outline to .platform then remove .outline from me then hide <form/> then show #login-bluesky" id="platform-bluesky" title="{% trans "Bluesky" %}">
-              <i class="fa-brands fa-bluesky" style="font-size:85%"></i>
-            </button>
-            {%endif%}
-            -->
+              <button class="platform outline" _="on click add .outline to .platform then remove .outline from me then hide
+                <form/>
+                then show #login-bluesky" id="platform-bluesky" title="{% trans "Bluesky" %}">
+                <i class="fa-brands fa-bluesky" style="font-size:85%"></i>
+              </button>
+            {% endif %}
           </div>
           <form id="login-email"
                 style="display:none"
-                action="{% url 'users:connect' %}"
+                action="{% url 'mastodon:email_login' %}"
                 method="post"
                 onsubmit="return login(this);">
             {% csrf_token %}
@@ -100,7 +102,7 @@
           </form>
           <form id="login-mastodon"
                 style="display:none"
-                action="{% url 'users:connect' %}"
+                action="{% url 'mastodon:login' %}"
                 method="post"
                 onsubmit="return login(this);">
             {% csrf_token %}
@@ -127,7 +129,7 @@
           </form>
           <form id="login-threads"
                 style="display:none"
-                action="{% url 'users:connect' %}"
+                action="{% url 'mastodon:threads_login' %}"
                 method="post"
                 onsubmit="return login(this);">
             {% csrf_token %}
@@ -137,7 +139,7 @@
           </form>
           <form id="login-bluesky"
                 style="display:none"
-                action="{% url 'users:connect' %}"
+                action="{% url 'mastodon:login' %}"
                 method="post"
                 onsubmit="return login(this);">
             {% csrf_token %}
diff --git a/users/templates/users/preferences.html b/users/templates/users/preferences.html
index eac19ac6..cc840e73 100644
--- a/users/templates/users/preferences.html
+++ b/users/templates/users/preferences.html
@@ -90,7 +90,7 @@
                   <label for="post_public_mode_4">{% trans "local, this site only" %}</label>
                 {% endif %}
               </fieldset>
-              {% if request.user.mastodon_acct %}
+              {% if request.user.mastodon %}
                 <fieldset>
                   <label>
                     {% trans "Turn on crosspost to timeline by default" %}
diff --git a/users/templates/users/profile_actions.html b/users/templates/users/profile_actions.html
index 6b492c1e..4d111775 100644
--- a/users/templates/users/profile_actions.html
+++ b/users/templates/users/profile_actions.html
@@ -54,17 +54,27 @@
         </a>
       </span>
     {% endif %}
-    {% if identity.user.mastodon_account %}
-      {% if not identity.locked or request.user.is_superuser or relationship.requested or relationship.status %}
+    {% if not identity.locked or request.user.is_superuser or relationship.requested or relationship.status %}
+      {% if identity.user.mastodon %}
         <span>
-          <a href="{{ identity.user.mastodon_account.url }}"
+          <a href="{{ identity.user.mastodon.url }}"
              target="_blank"
              rel="noopener"
-             title="@{{ identity.user.mastodon_acct }}">
+             title="@{{ identity.user.mastodon.handle }}">
             <i class="fa-brands fa-mastodon"></i>
           </a>
         </span>
       {% endif %}
+      {% if identity.user.threads %}
+        <span>
+          <a href="{{ identity.user.threads.url }}"
+             target="_blank"
+             rel="noopener"
+             title="@{{ identity.user.threads.handle }}">
+            <i class="fa-brands fa-threads"></i>
+          </a>
+        </span>
+      {% endif %}
     {% endif %}
   {% endif %}
   {% if relationship.requested %}
diff --git a/users/templates/users/register.html b/users/templates/users/register.html
index f8f40e1f..c9211942 100644
--- a/users/templates/users/register.html
+++ b/users/templates/users/register.html
@@ -12,7 +12,10 @@
     <div class="container">
       <article>
         <header style="text-align: center;">
-          <img src="{{ site_logo }}" class="logo" alt="logo">
+          <img src="{{ site_logo }}"
+               class="logo"
+               alt="logo"
+               style="max-height: 42vh">
         </header>
         {% if form %}
           <form action="{% url 'users:register' %}" method="post">
diff --git a/users/templates/users/verify.html b/users/templates/users/verify.html
index c6400fad..9c7061c9 100644
--- a/users/templates/users/verify.html
+++ b/users/templates/users/verify.html
@@ -27,7 +27,7 @@
             text-align: center;
           }
         </style>
-        <form action="{% url 'users:verify_code' %}" method="post">
+        <form action="{% url 'mastodon:email_verify' %}" method="post">
           <div class="otp">
             <input name="code"
                    maxlength="5"
diff --git a/users/templates/users/welcome.html b/users/templates/users/welcome.html
index 90d7aea5..d83453d9 100644
--- a/users/templates/users/welcome.html
+++ b/users/templates/users/welcome.html
@@ -12,7 +12,10 @@
     <div class="container">
       <article>
         <header style="text-align: center;">
-          <img src="{{ site_logo }}" class="logo" alt="logo">
+          <img src="{{ site_logo }}"
+               class="logo"
+               alt="logo"
+               style="max-height: 42vh">
         </header>
         <h4>{% trans "Welcome" %}</h4>
         <p>
diff --git a/users/tests.py b/users/tests.py
index 1b7be8a4..088eba6a 100644
--- a/users/tests.py
+++ b/users/tests.py
@@ -11,15 +11,11 @@ class UserTest(TestCase):
     databases = "__all__"
 
     def setUp(self):
-        self.alice = User.register(
-            mastodon_site="MySpace", mastodon_username="Alice", username="alice"
-        ).identity
+        self.alice = User.register(username="alice").identity
         MastodonAccount.objects.create(
             handle="Alice@MySpace", user=self.alice.user, domain="MySpace", uid="42"
         )
-        self.bob = User.register(
-            mastodon_site="KKCity", mastodon_username="Bob", username="bob"
-        ).identity
+        self.bob = User.register(username="bob").identity
         self.domain = settings.SITE_INFO.get("site_domain")
 
     def test_handle(self):
diff --git a/users/urls.py b/users/urls.py
index 42037108..4125b2af 100644
--- a/users/urls.py
+++ b/users/urls.py
@@ -1,17 +1,11 @@
 from django.urls import path
 
-from .account import *
-from .profile import *
 from .views import *
 
 app_name = "users"
 urlpatterns = [
     path("login", login, name="login"),
-    path("login/oauth", connect_redirect_back, name="login_oauth"),
-    path("verify_code", verify_code, name="verify_code"),
     path("register", register, name="register"),
-    path("connect", connect, name="connect"),
-    path("reconnect", reconnect, name="reconnect"),
     path("fetch_refresh", fetch_refresh, name="fetch_refresh"),
     path("data", data, name="data"),
     path("info", account_info, name="info"),
diff --git a/users/views/__init__.py b/users/views/__init__.py
new file mode 100644
index 00000000..2baf7c77
--- /dev/null
+++ b/users/views/__init__.py
@@ -0,0 +1,4 @@
+from .account import *
+from .actions import *
+from .data import *
+from .profile import *
diff --git a/users/views/account.py b/users/views/account.py
new file mode 100644
index 00000000..827b9f8a
--- /dev/null
+++ b/users/views/account.py
@@ -0,0 +1,242 @@
+from urllib.parse import quote
+
+import django_rq
+from django import forms
+from django.conf import settings
+from django.contrib import auth, messages
+from django.contrib.auth.decorators import login_required
+from django.core.exceptions import BadRequest
+from django.http import HttpResponse
+from django.shortcuts import redirect, render
+from django.urls import reverse
+from django.utils.translation import gettext as _
+from django.views.decorators.http import require_http_methods
+from loguru import logger
+
+from common.utils import AuthedHttpRequest
+from journal.models import remove_data_by_user
+from mastodon.models import Email, Mastodon
+from mastodon.models.common import Platform, SocialAccount
+from mastodon.models.email import EmailAccount
+from takahe.utils import Takahe
+
+from ..models import User
+
+
+@require_http_methods(["GET"])
+def login(request):
+    """show login page"""
+    selected_domain = request.GET.get("domain", default="")
+    sites = Mastodon.get_sites()
+    if request.GET.get("next"):
+        request.session["next_url"] = request.GET.get("next")
+    invite_status = -1 if settings.INVITE_ONLY else 0
+    if settings.INVITE_ONLY and request.GET.get("invite"):
+        if Takahe.verify_invite(request.GET.get("invite")):
+            invite_status = 1
+            request.session["invite"] = request.GET.get("invite")
+        else:
+            invite_status = -2
+    return render(
+        request,
+        "users/login.html",
+        {
+            "sites": sites,
+            "scope": quote(settings.MASTODON_CLIENT_SCOPE),
+            "selected_domain": selected_domain,
+            "allow_any_site": settings.MASTODON_ALLOW_ANY_SITE,
+            "enable_email": settings.ENABLE_LOGIN_EMAIL,
+            "enable_threads": bool(settings.THREADS_APP_ID),
+            "enable_bluesky": settings.BLUESKY_LOGIN_ENABLED,
+            "invite_status": invite_status,
+        },
+    )
+
+
+@login_required
+def logout(request):
+    return auth_logout(request)
+
+
+class RegistrationForm(forms.ModelForm):
+    email = forms.EmailField(required=False)
+
+    class Meta:
+        model = User
+        fields = ["username"]
+
+    def clean_username(self):
+        username = self.cleaned_data.get("username")
+        if username and self.instance and self.instance.username:
+            username = self.instance.username
+        elif (
+            username
+            and User.objects.filter(username__iexact=username)
+            .exclude(pk=self.instance.pk if self.instance else -1)
+            .exists()
+        ):
+            raise forms.ValidationError(_("This username is already in use."))
+        return username
+
+    def clean_email(self):
+        email = self.cleaned_data.get("email", "").strip()
+        if (
+            email
+            and EmailAccount.objects.filter(handle__iexact=email)
+            .exclude(user_id=self.instance.pk if self.instance else -1)
+            .exists()
+        ):
+            raise forms.ValidationError(_("This email address is already in use."))
+        return email
+
+
+@require_http_methods(["GET", "POST"])
+def register(request: AuthedHttpRequest):
+    """show registration page and process the submission from it"""
+
+    # check invite code if invite-only
+    if settings.INVITE_ONLY and not request.user.is_authenticated:
+        if not Takahe.verify_invite(str(request.session.get("invite"))):
+            return render(
+                request,
+                "common/error.html",
+                {
+                    "msg": _("Authentication failed"),
+                    "secondary_msg": _("Registration is for invitation only"),
+                },
+            )
+
+    data = request.POST.copy()
+    error = None
+    if request.user.is_authenticated:
+        # logged in user to change email
+        verified_account = None
+    else:
+        verified_account = SocialAccount.from_dict(
+            request.session.get("verified_account")
+        )
+        if not verified_account:
+            # kick back to login if no identity verified
+            return redirect(reverse("users:login"))
+
+    # no registration form for closed community mode
+    if not settings.MASTODON_ALLOW_ANY_SITE:
+        if verified_account and verified_account.platform == Platform.MASTODON:
+            # directly create a new user
+            new_user = User.register(
+                account=verified_account,
+                username=verified_account.username,  # type:ignore
+            )
+            auth_login(request, new_user)
+            return render(request, "users/welcome.html")
+        else:
+            return redirect(reverse("common:home"))
+
+    # use verified email if presents for new account creation
+    if verified_account and verified_account.platform == Platform.EMAIL:
+        data["email"] = verified_account.handle
+        email_readonly = True
+    else:
+        email_readonly = False
+    form = RegistrationForm(
+        data,
+        instance=(
+            User.objects.get(pk=request.user.pk)
+            if request.user.is_authenticated
+            else None
+        ),
+    )
+
+    if request.method == "POST" and form.is_valid():
+        if request.user.is_authenticated:
+            # logged in user to change email
+            current_email = (
+                request.user.email_account.handle
+                if request.user.email_account
+                else None
+            )
+            if (
+                form.cleaned_data["email"]
+                and form.cleaned_data["email"] != current_email
+            ):
+                Email.send_login_email(request, form.cleaned_data["email"], "verify")
+                return render(request, "users/verify.html")
+        else:
+            # new user to finalize registration process
+            username = form.cleaned_data["username"]
+            if not username:
+                error = _("Valid username required")
+            elif User.objects.filter(username__iexact=username).exists():
+                error = _("Username in use")
+            else:
+                # all good, create new user
+                new_user = User.register(username=username, account=verified_account)
+                auth_login(request, new_user)
+
+                if not email_readonly and form.cleaned_data["email"]:
+                    # if new user wants to link email too
+                    request.session["new_user"] = 1
+                    Email.send_login_email(
+                        request, form.cleaned_data["email"], "verify"
+                    )
+                    return render(request, "users/verify.html")
+                return render(request, "users/welcome.html")
+
+    return render(
+        request,
+        "users/register.html",
+        {"form": form, "email_readonly": email_readonly, "error": error},
+    )
+
+
+def clear_preference_cache(request):
+    for key in list(request.session.keys()):
+        if key.startswith("p_"):
+            del request.session[key]
+
+
+def auth_login(request, user):
+    auth.login(request, user, backend="mastodon.auth.OAuth2Backend")
+    request.session.pop("verified_account", None)
+    request.session.pop("invite", None)
+    clear_preference_cache(request)
+
+
+def logout_takahe(response: HttpResponse):
+    response.delete_cookie(settings.TAKAHE_SESSION_COOKIE_NAME)
+    return response
+
+
+def auth_logout(request):
+    auth.logout(request)
+    return logout_takahe(redirect("/"))
+
+
+def clear_data_task(user_id):
+    user = User.objects.get(pk=user_id)
+    user_str = str(user)
+    if user.identity:
+        remove_data_by_user(user.identity)
+    Takahe.delete_identity(user.identity.pk)
+    user.clear()
+    logger.warning(f"User {user_str} data cleared.")
+
+
+@login_required
+def clear_data(request):
+    if request.META.get("HTTP_AUTHORIZATION"):
+        raise BadRequest("Only for web login")
+    if request.method == "POST":
+        v = request.POST.get("verification", "").strip()
+        if v:
+            for acct in request.user.social_accounts.all():
+                if acct.handle == v:
+                    django_rq.get_queue("mastodon").enqueue(
+                        clear_data_task, request.user.id
+                    )
+                    messages.add_message(
+                        request, messages.INFO, _("Account is being deleted.")
+                    )
+                    return auth_logout(request)
+        messages.add_message(request, messages.ERROR, _("Account mismatch."))
+    return redirect(reverse("users:data"))
diff --git a/users/views.py b/users/views/actions.py
similarity index 99%
rename from users/views.py
rename to users/views/actions.py
index 0ce50a4a..32a4f166 100644
--- a/users/views.py
+++ b/users/views/actions.py
@@ -16,9 +16,9 @@ from common.utils import (
 from mastodon.api import *
 from takahe.utils import Takahe
 
+from ..models import APIdentity
 from .account import *
 from .data import *
-from .models import APIdentity
 
 
 def query_identity(request, handle):
diff --git a/users/data.py b/users/views/data.py
similarity index 98%
rename from users/data.py
rename to users/views/data.py
index 62e048fb..6182e5ae 100644
--- a/users/data.py
+++ b/users/views/data.py
@@ -12,8 +12,7 @@ from django.urls import reverse
 from django.utils import translation
 from django.utils.translation import gettext as _
 
-from common.config import *
-from common.utils import GenerateDateUUIDMediaFilePath, profile_identity_required
+from common.utils import GenerateDateUUIDMediaFilePath
 from journal.exporters.doufen import export_marks_task
 from journal.importers.douban import DoubanImporter
 from journal.importers.goodreads import GoodreadsImporter
@@ -23,8 +22,8 @@ from journal.models import ShelfType, reset_journal_visibility_for_user
 from mastodon.api import *
 from social.models import reset_social_visibility_for_user
 
+from ..tasks import *
 from .account import *
-from .tasks import *
 
 
 @login_required
diff --git a/users/profile.py b/users/views/profile.py
similarity index 95%
rename from users/profile.py
rename to users/views/profile.py
index e0b892ff..7a5a9bcc 100644
--- a/users/profile.py
+++ b/users/views/profile.py
@@ -52,7 +52,7 @@ def account_profile(request):
             i = form.save()
             Takahe.update_state(i, "edited")
             u = request.user
-            if u.mastodon_acct and not u.preference.mastodon_skip_userinfo:
+            if u.mastodon and not u.preference.mastodon_skip_userinfo:
                 u.preference.mastodon_skip_userinfo = True
                 u.preference.save(update_fields=["mastodon_skip_userinfo"])
     return HttpResponseRedirect(reverse("users:info"))