diff --git a/analysis_options.yaml b/analysis_options.yaml
index cc50fe2..e2f34ae 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -5,6 +5,7 @@ linter:
     public_member_api_docs: false
     prefer_expression_function_bodies: true
     prefer_single_quotes: true
+    prefer_final_locals: true
 analyzer:
   exclude:
-    - '**/*.g.dart'
+    - "**/*.g.dart"
diff --git a/lib/comment_tree.dart b/lib/comment_tree.dart
index f8d6630..671b7e9 100644
--- a/lib/comment_tree.dart
+++ b/lib/comment_tree.dart
@@ -21,7 +21,7 @@ class CommentTree {
 
   static List<CommentTree> fromList(List<CommentView> comments) {
     CommentTree gatherChildren(CommentTree parent) {
-      for (var el in comments) {
+      for (final el in comments) {
         if (el.parentId == parent.comment.id) {
           parent.children.add(gatherChildren(CommentTree(el)));
         }
@@ -29,7 +29,7 @@ class CommentTree {
       return parent;
     }
 
-    var parents = <CommentTree>[];
+    final parents = <CommentTree>[];
 
     // first pass to get all the parents
     for (var i = 0; i < comments.length; i++) {
@@ -38,7 +38,7 @@ class CommentTree {
       }
     }
 
-    var result = parents.map(gatherChildren).toList();
+    final result = parents.map(gatherChildren).toList();
     return result;
   }
 
@@ -63,7 +63,7 @@ class CommentTree {
 
   void _sort(int compare(CommentTree a, CommentTree b)) {
     children.sort(compare);
-    for (var el in children) {
+    for (final el in children) {
       el._sort(compare);
     }
   }
diff --git a/lib/hooks/delayed_loading.dart b/lib/hooks/delayed_loading.dart
index 9280e21..781ad61 100644
--- a/lib/hooks/delayed_loading.dart
+++ b/lib/hooks/delayed_loading.dart
@@ -23,9 +23,9 @@ class DelayedLoading {
 /// and loading is triggered after [delayDuration].
 /// Everything can be reset with [.cancel()]
 DelayedLoading useDelayedLoading(Duration delayDuration) {
-  var loading = useState(false);
-  var pending = useState(false);
-  var timerHandle = useRef<Timer>(null);
+  final loading = useState(false);
+  final pending = useState(false);
+  final timerHandle = useRef<Timer>(null);
 
   return DelayedLoading(
     loading: loading.value,
diff --git a/lib/main.dart b/lib/main.dart
index 87382d7..cae0097 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -11,10 +11,10 @@ import 'stores/config_store.dart';
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
-  var configStore = ConfigStore();
+  final configStore = ConfigStore();
   await configStore.load();
 
-  var accountsStore = AccountsStore();
+  final accountsStore = AccountsStore();
   await accountsStore.load();
 
   runApp(
diff --git a/lib/pages/communities_tab.dart b/lib/pages/communities_tab.dart
index 0712a28..cdecf3b 100644
--- a/lib/pages/communities_tab.dart
+++ b/lib/pages/communities_tab.dart
@@ -16,21 +16,21 @@ class CommunitiesTab extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
-    var filterController = useTextEditingController();
+    final theme = Theme.of(context);
+    final filterController = useTextEditingController();
     useValueListenable(filterController);
     final accountsStore = useAccountsStore();
 
-    var amountOfDisplayInstances = useMemoized(() {
+    final amountOfDisplayInstances = useMemoized(() {
       return accountsStore.users.keys
           .where((e) => !accountsStore.isAnonymousFor(e))
           .length;
     });
-    var isCollapsed = useState(List.filled(amountOfDisplayInstances, false));
+    final isCollapsed = useState(List.filled(amountOfDisplayInstances, false));
 
     // TODO: use useMemoFuture
-    var instancesFut = useMemoized(() {
-      var futures = accountsStore.users.keys
+    final instancesFut = useMemoized(() {
+      final futures = accountsStore.users.keys
           .where((e) => !accountsStore.isAnonymousFor(e))
           .map(
             (instanceUrl) =>
@@ -40,8 +40,8 @@ class CommunitiesTab extends HookWidget {
 
       return Future.wait(futures);
     });
-    var communitiesFut = useMemoized(() {
-      var futures = accountsStore.users.keys
+    final communitiesFut = useMemoized(() {
+      final futures = accountsStore.users.keys
           .where((e) => !accountsStore.isAnonymousFor(e))
           .map(
             (instanceUrl) => LemmyApi(instanceUrl)
@@ -58,8 +58,8 @@ class CommunitiesTab extends HookWidget {
       return Future.wait(futures);
     });
 
-    var communitiesSnap = useFuture(communitiesFut);
-    var instancesSnap = useFuture(instancesFut);
+    final communitiesSnap = useFuture(communitiesFut);
+    final instancesSnap = useFuture(instancesFut);
 
     if (communitiesSnap.hasError || instancesSnap.hasError) {
       return Scaffold(
@@ -88,12 +88,12 @@ class CommunitiesTab extends HookWidget {
       );
     }
 
-    var instances = instancesSnap.data;
-    var communities = communitiesSnap.data
+    final instances = instancesSnap.data;
+    final communities = communitiesSnap.data
       ..forEach(
           (e) => e.sort((a, b) => a.communityName.compareTo(b.communityName)));
 
-    var filterIcon = () {
+    final filterIcon = () {
       if (filterController.text.isEmpty) {
         return Icon(Icons.filter_list);
       }
@@ -108,7 +108,7 @@ class CommunitiesTab extends HookWidget {
     }();
 
     filterCommunities(List<CommunityFollowerView> comm) {
-      var matches = Fuzzy(
+      final matches = Fuzzy(
         comm.map((e) => e.communityName).toList(),
         options: FuzzyOptions(threshold: 0.5),
       ).search(filterController.text).map((e) => e.item);
@@ -141,7 +141,7 @@ class CommunitiesTab extends HookWidget {
       ),
       body: ListView(
         children: [
-          for (var i in Iterable.generate(amountOfDisplayInstances))
+          for (final i in Iterable.generate(amountOfDisplayInstances))
             Column(
               children: [
                 ListTile(
@@ -173,7 +173,7 @@ class CommunitiesTab extends HookWidget {
                   ),
                 ),
                 if (!isCollapsed.value[i])
-                  for (var comm in filterCommunities(communities[i]))
+                  for (final comm in filterCommunities(communities[i]))
                     Padding(
                       padding: const EdgeInsets.only(left: 17),
                       child: ListTile(
@@ -231,9 +231,9 @@ class _CommunitySubscribeToggle extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
-    var subbed = useState(true);
-    var delayed = useDelayedLoading(const Duration(milliseconds: 500));
+    final theme = Theme.of(context);
+    final subbed = useState(true);
+    final delayed = useDelayedLoading(const Duration(milliseconds: 500));
     final accountsStore = useAccountsStore();
 
     handleTap() async {
diff --git a/lib/pages/community.dart b/lib/pages/community.dart
index 0b3d660..2824650 100644
--- a/lib/pages/community.dart
+++ b/lib/pages/community.dart
@@ -50,7 +50,7 @@ class CommunityPage extends HookWidget {
     final theme = Theme.of(context);
     final accountsStore = useAccountsStore();
 
-    var fullCommunitySnap = useMemoFuture(() {
+    final fullCommunitySnap = useMemoFuture(() {
       final token = accountsStore.defaultTokenFor(instanceUrl);
 
       if (communityId != null) {
@@ -552,7 +552,7 @@ class _FollowButton extends HookWidget {
       }
 
       isPending.value = true;
-      var spinnerTimer =
+      final spinnerTimer =
           Timer(Duration(milliseconds: 500), () => showSpinner.value = true);
 
       final api = LemmyApi(community.instanceUrl).v1;
diff --git a/lib/pages/profile_tab.dart b/lib/pages/profile_tab.dart
index 21af767..e238189 100644
--- a/lib/pages/profile_tab.dart
+++ b/lib/pages/profile_tab.dart
@@ -15,7 +15,7 @@ class UserProfileTab extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
+    final theme = Theme.of(context);
     final accountsStore = useAccountsStore();
 
     return Observer(
@@ -40,7 +40,7 @@ class UserProfileTab extends HookWidget {
           );
         }
 
-        var user = accountsStore.defaultUser;
+        final user = accountsStore.defaultUser;
 
         return Scaffold(
           extendBodyBehindAppBar: true,
@@ -69,7 +69,7 @@ class UserProfileTab extends HookWidget {
                   context: context,
                   backgroundColor: Colors.transparent,
                   builder: (_) {
-                    var userTags = <String>[];
+                    final userTags = <String>[];
 
                     accountsStore.users.forEach((instanceUrl, value) {
                       value.forEach((username, _) {
@@ -79,8 +79,8 @@ class UserProfileTab extends HookWidget {
 
                     return Observer(
                       builder: (ctx) {
-                        var user = accountsStore.defaultUser;
-                        var instanceUrl = user.instanceUrl;
+                        final user = accountsStore.defaultUser;
+                        final instanceUrl = user.instanceUrl;
 
                         return BottomModal(
                           title: 'account',
@@ -92,7 +92,7 @@ class UserProfileTab extends HookWidget {
                                   title: Text(tag),
                                   groupValue: '${user.name}@$instanceUrl',
                                   onChanged: (selected) {
-                                    var userTag = selected.split('@');
+                                    final userTag = selected.split('@');
                                     accountsStore.setDefaultAccount(
                                         userTag[1], userTag[0]);
                                     Navigator.of(ctx).pop();
diff --git a/lib/pages/settings.dart b/lib/pages/settings.dart
index a25386b..d94164b 100644
--- a/lib/pages/settings.dart
+++ b/lib/pages/settings.dart
@@ -2,14 +2,14 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
-import 'package:lemmur/hooks/stores.dart';
 
+import '../hooks/stores.dart';
 import '../util/goto.dart';
 
 class SettingsPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
+    final theme = Theme.of(context);
 
     return Scaffold(
       appBar: AppBar(
@@ -46,7 +46,7 @@ class SettingsPage extends StatelessWidget {
 class AppearanceConfigPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
+    final theme = Theme.of(context);
     final configStore = useConfigStore();
 
     return Scaffold(
@@ -88,7 +88,7 @@ class AccountsConfigPage extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
+    final theme = Theme.of(context);
     final accountsStore = useAccountsStore();
 
     return Scaffold(
@@ -112,13 +112,13 @@ class AccountsConfigPage extends HookWidget {
       ),
       body: Observer(
         builder: (ctx) {
-          var theme = Theme.of(context);
+          final theme = Theme.of(context);
 
           return ListView(
             children: [
-              for (var entry in accountsStore.users.entries) ...[
+              for (final entry in accountsStore.users.entries) ...[
                 _SectionHeading(entry.key),
-                for (var username in entry.value.keys) ...[
+                for (final username in entry.value.keys) ...[
                   ListTile(
                     trailing:
                         username == accountsStore.defaultUserFor(entry.key).name
@@ -165,11 +165,11 @@ class _AccountsConfigAddInstanceDialog extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var instanceController = useTextEditingController();
+    final instanceController = useTextEditingController();
     useValueListenable(instanceController);
     final accountsStore = useAccountsStore();
 
-    var loading = useState(false);
+    final loading = useState(false);
 
     handleOnAdd() async {
       try {
@@ -220,13 +220,13 @@ class _AccountsConfigAddAccountDialog extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var usernameController = useTextEditingController();
-    var passwordController = useTextEditingController();
+    final usernameController = useTextEditingController();
+    final passwordController = useTextEditingController();
     useValueListenable(usernameController);
     useValueListenable(passwordController);
     final accountsStore = useAccountsStore();
 
-    var loading = useState(false);
+    final loading = useState(false);
 
     handleOnAdd() async {
       try {
diff --git a/lib/pages/user.dart b/lib/pages/user.dart
index ef3a3cd..270c4d3 100644
--- a/lib/pages/user.dart
+++ b/lib/pages/user.dart
@@ -30,9 +30,9 @@ class UserPage extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var userViewSnap = useFuture(_userView);
+    final userViewSnap = useFuture(_userView);
 
-    var body = () {
+    final body = () {
       if (userViewSnap.hasData) {
         return UserProfile.fromUserView(userViewSnap.data);
       } else if (userViewSnap.hasError) {
diff --git a/lib/stores/accounts_store.dart b/lib/stores/accounts_store.dart
index 601f569..998cc35 100644
--- a/lib/stores/accounts_store.dart
+++ b/lib/stores/accounts_store.dart
@@ -32,7 +32,7 @@ abstract class _AccountsStore with Store {
   }
 
   void load() async {
-    var prefs = await SharedPreferences.getInstance();
+    final prefs = await SharedPreferences.getInstance();
 
     nestedMapsCast<T>(String key, T f(Map<String, dynamic> json)) =>
         ObservableMap.of(
@@ -59,7 +59,7 @@ abstract class _AccountsStore with Store {
   }
 
   void save() async {
-    var prefs = await SharedPreferences.getInstance();
+    final prefs = await SharedPreferences.getInstance();
 
     await prefs.setString('defaultAccount', _defaultAccount);
     await prefs.setString('defaultAccounts', jsonEncode(_defaultAccounts));
@@ -93,7 +93,7 @@ abstract class _AccountsStore with Store {
       return null;
     }
 
-    var userTag = _defaultAccount.split('@');
+    final userTag = _defaultAccount.split('@');
     return users[userTag[1]][userTag[0]];
   }
 
@@ -103,7 +103,7 @@ abstract class _AccountsStore with Store {
       return null;
     }
 
-    var userTag = _defaultAccount.split('@');
+    final userTag = _defaultAccount.split('@');
     return tokens[userTag[1]][userTag[0]];
   }
 
@@ -159,13 +159,13 @@ abstract class _AccountsStore with Store {
       throw Exception('No such instance was added');
     }
 
-    var lemmy = LemmyApi(instanceUrl).v1;
+    final lemmy = LemmyApi(instanceUrl).v1;
 
-    var token = await lemmy.login(
+    final token = await lemmy.login(
       usernameOrEmail: usernameOrEmail,
       password: password,
     );
-    var userData =
+    final userData =
         await lemmy.getSite(auth: token.raw).then((value) => value.myUser);
 
     // first account for this instance
diff --git a/lib/stores/config_store.dart b/lib/stores/config_store.dart
index 9aafcd4..bb6b34a 100644
--- a/lib/stores/config_store.dart
+++ b/lib/stores/config_store.dart
@@ -22,14 +22,14 @@ abstract class _ConfigStore with Store {
   }
 
   void load() async {
-    var prefs = await SharedPreferences.getInstance();
+    final prefs = await SharedPreferences.getInstance();
     // load saved settings or create defaults
     theme = _themeModeFromString(prefs.getString('theme') ?? 'system');
     amoledDarkMode = prefs.getBool('amoledDarkMode') ?? false;
   }
 
   void save() async {
-    var prefs = await SharedPreferences.getInstance();
+    final prefs = await SharedPreferences.getInstance();
 
     await prefs.setString('theme', describeEnum(theme));
     await prefs.setBool('amoledDarkMode', amoledDarkMode);
diff --git a/lib/widgets/badge.dart b/lib/widgets/badge.dart
index fffe847..3b9b027 100644
--- a/lib/widgets/badge.dart
+++ b/lib/widgets/badge.dart
@@ -11,7 +11,7 @@ class Badge extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
+    final theme = Theme.of(context);
 
     return Container(
       height: 25,
diff --git a/lib/widgets/bottom_modal.dart b/lib/widgets/bottom_modal.dart
index c9abb75..50f13d2 100644
--- a/lib/widgets/bottom_modal.dart
+++ b/lib/widgets/bottom_modal.dart
@@ -8,7 +8,7 @@ class BottomModal extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
+    final theme = Theme.of(context);
 
     return SafeArea(
       child: Padding(
diff --git a/lib/widgets/comment.dart b/lib/widgets/comment.dart
index 9d71bb8..559be00 100644
--- a/lib/widgets/comment.dart
+++ b/lib/widgets/comment.dart
@@ -314,7 +314,7 @@ class Comment extends HookWidget {
                       : BorderSide.none,
                   top: BorderSide(width: 0.2))),
         ),
-        for (var c in commentTree.children)
+        for (final c in commentTree.children)
           Comment(
             c,
             indent: indent + 1,
diff --git a/lib/widgets/comment_section.dart b/lib/widgets/comment_section.dart
index 95b19ba..297db74 100644
--- a/lib/widgets/comment_section.dart
+++ b/lib/widgets/comment_section.dart
@@ -34,9 +34,9 @@ class CommentSection extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var sorting = useState(sortType);
-    var rawComms = useState(rawComments);
-    var comms = useState(comments);
+    final sorting = useState(sortType);
+    final rawComms = useState(rawComments);
+    final comms = useState(comments);
 
     void sortComments(CommentSortType sort) {
       if (sort != sorting.value && sort != CommentSortType.chat) {
@@ -106,7 +106,8 @@ class CommentSection extends HookWidget {
             postCreatorId: postCreatorId,
           )
       else
-        for (var com in comms.value) Comment(com, postCreatorId: postCreatorId),
+        for (final com in comms.value)
+          Comment(com, postCreatorId: postCreatorId),
     ]);
   }
 }
diff --git a/lib/widgets/post.dart b/lib/widgets/post.dart
index 4f201e2..1fb4c75 100644
--- a/lib/widgets/post.dart
+++ b/lib/widgets/post.dart
@@ -151,7 +151,7 @@ class Post extends StatelessWidget {
     final urlDomain = () {
       if (post.url == null) return null;
 
-      var url = post.url.split('/')[2];
+      final url = post.url.split('/')[2];
       if (url.startsWith('www.')) return url.substring(4);
       return url;
     }();
diff --git a/lib/widgets/post_list_options.dart b/lib/widgets/post_list_options.dart
index 4975c09..11f4a29 100644
--- a/lib/widgets/post_list_options.dart
+++ b/lib/widgets/post_list_options.dart
@@ -16,7 +16,7 @@ class PostListOptions extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var sort = useState(defaultSort);
+    final sort = useState(defaultSort);
 
     void selectSortType(BuildContext context) {
       showModalBottomSheet(
@@ -27,7 +27,7 @@ class PostListOptions extends HookWidget {
             title: 'sort by',
             child: Column(
               children: [
-                for (var x in SortType.values)
+                for (final x in SortType.values)
                   RadioListTile<SortType>(
                     value: x,
                     groupValue: sort.value,
diff --git a/lib/widgets/user_profile.dart b/lib/widgets/user_profile.dart
index f5afc3a..905fe89 100644
--- a/lib/widgets/user_profile.dart
+++ b/lib/widgets/user_profile.dart
@@ -29,11 +29,11 @@ class UserProfile extends HookWidget {
 
   @override
   Widget build(BuildContext context) {
-    var theme = Theme.of(context);
+    final theme = Theme.of(context);
     final colorOnTopOfAccentColor =
         textColorBasedOnBackground(theme.accentColor);
 
-    var userViewSnap = useFuture(_userView, preserveState: false);
+    final userViewSnap = useFuture(_userView, preserveState: false);
 
     Widget bio = () {
       if (userViewSnap.hasData) {