diff --git a/app/build.gradle b/app/build.gradle
index 3ce9bbca..d648bf20 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -123,6 +123,7 @@ dependencies {
     implementation 'androidx.gridlayout:gridlayout:1.0.0'
     implementation "androidx.activity:activity-ktx:1.3.1"
     implementation 'androidx.fragment:fragment-ktx:1.3.6'
+    implementation "androidx.work:work-runtime-ktx:2.5.0"
 
     // Use the most recent version of CameraX
     def cameraX_version = '1.0.1'
@@ -187,7 +188,7 @@ dependencies {
     implementation "com.mikepenz:iconics-core:5.3.0"
     implementation 'com.mikepenz:materialdrawer-iconics:8.4.2'
     implementation "com.mikepenz:iconics-views:5.3.0"
-    implementation 'com.mikepenz:google-material-typeface:3.0.1.4.original-kotlin@aar'
+    implementation 'com.mikepenz:google-material-typeface:4.0.0.1-kotlin@aar'
 
 
     implementation 'com.karumi:dexter:6.2.3'
diff --git a/app/licenses.yml b/app/licenses.yml
index 86b165e6..954bc667 100644
--- a/app/licenses.yml
+++ b/app/licenses.yml
@@ -515,6 +515,47 @@
   license: The Apache Software License, Version 2.0
   licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
   url: http://developer.android.com/tools/extras/support-library.html
+- artifact: androidx.constraintlayout:constraintlayout-core:+
+  name: constraintlayout-core
+  copyrightHolder: Google Inc.
+  license: The Apache Software License, Version 2.0
+  licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
+  url: http://tools.android.com
+- artifact: androidx.databinding:databinding-ktx:+
+  name: databinding-ktx
+  copyrightHolder: Google Inc.
+  license: The Apache Software License, Version 2.0
+  licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
+- artifact: androidx.lifecycle:lifecycle-extensions:+
+  name: lifecycle-extensions
+  copyrightHolder: Google Inc.
+  license: The Apache Software License, Version 2.0
+  licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
+  url: https://developer.android.com/topic/libraries/architecture/index.html
+- artifact: androidx.lifecycle:lifecycle-process:+
+  name: lifecycle-process
+  copyrightHolder: Google Inc.
+  license: The Apache Software License, Version 2.0
+  licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
+  url: https://developer.android.com/topic/libraries/architecture/index.html
+- artifact: androidx.lifecycle:lifecycle-service:+
+  name: lifecycle-service
+  copyrightHolder: Google Inc.
+  license: The Apache Software License, Version 2.0
+  licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
+  url: https://developer.android.com/topic/libraries/architecture/index.html
+- artifact: androidx.work:work-runtime-ktx:+
+  name: work-runtime-ktx
+  copyrightHolder: Google Inc.
+  license: The Apache Software License, Version 2.0
+  licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
+  url: https://developer.android.com/jetpack/androidx/releases/work#2.5.0
+- artifact: androidx.work:work-runtime:+
+  name: work-runtime
+  copyrightHolder: Google Inc.
+  license: The Apache Software License, Version 2.0
+  licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
+  url: https://developer.android.com/jetpack/androidx/releases/work#2.5.0
 - artifact: androidx.paging:paging-common:+
   name: paging-common
   copyrightHolder: Google Inc.
@@ -668,12 +709,6 @@
   license: The Apache License, Version 2.0
   licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
   url: https://kotlinlang.org/
-- artifact: androidx.constraintlayout:constraintlayout-solver:+
-  name: constraintlayout-solver
-  copyrightHolder: Google Inc.
-  license: The Apache Software License, Version 2.0
-  licenseUrl: http://www.apache.org/licenses/LICENSE-2.0.txt
-  url: http://tools.android.com
 - artifact: com.google.guava:listenablefuture:+
   name: listenablefuture
   copyrightHolder: Google Inc.
diff --git a/app/src/main/java/org/pixeldroid/app/MainActivity.kt b/app/src/main/java/org/pixeldroid/app/MainActivity.kt
index 1df075f7..8a981c20 100644
--- a/app/src/main/java/org/pixeldroid/app/MainActivity.kt
+++ b/app/src/main/java/org/pixeldroid/app/MainActivity.kt
@@ -72,8 +72,8 @@ class MainActivity : BaseActivity() {
 
         //Check if we have logged in and gotten an access token
         if (user == null) {
-            launchActivity(LoginActivity(), firstTime = true)
             finish()
+            launchActivity(LoginActivity(), firstTime = true)
         } else {
             sendTraceDroidStackTracesIfExist("contact@pixeldroid.org", this)
 
@@ -172,6 +172,7 @@ class MainActivity : BaseActivity() {
     }
 
     private fun logOut(){
+        finish()
         db.runInTransaction {
             db.userDao().deleteActiveUsers()
 
@@ -229,6 +230,8 @@ class MainActivity : BaseActivity() {
         apiHolder.setToCurrentUser()
         val intent = Intent(this, MainActivity::class.java)
         intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
+
+        finish()
         startActivity(intent)
 
         return false
diff --git a/app/src/main/java/org/pixeldroid/app/postCreation/photoEdit/ThumbnailAdapter.kt b/app/src/main/java/org/pixeldroid/app/postCreation/photoEdit/ThumbnailAdapter.kt
index 89daa23d..af51f375 100644
--- a/app/src/main/java/org/pixeldroid/app/postCreation/photoEdit/ThumbnailAdapter.kt
+++ b/app/src/main/java/org/pixeldroid/app/postCreation/photoEdit/ThumbnailAdapter.kt
@@ -36,7 +36,7 @@ class ThumbnailAdapter (private val context: Context,
         holder.thumbnail.setImageBitmap(tbItem.image)
         holder.thumbnail.setOnClickListener {
             listener.onFilterSelected(tbItem.filter)
-            selectedIndex = position
+            selectedIndex = holder.bindingAdapterPosition
             notifyDataSetChanged()
         }
 
diff --git a/app/src/main/java/org/pixeldroid/app/posts/PostActivity.kt b/app/src/main/java/org/pixeldroid/app/posts/PostActivity.kt
index 2c68c62b..77c89db0 100644
--- a/app/src/main/java/org/pixeldroid/app/posts/PostActivity.kt
+++ b/app/src/main/java/org/pixeldroid/app/posts/PostActivity.kt
@@ -38,8 +38,8 @@ class PostActivity : BaseActivity() {
         supportActionBar?.setDisplayHomeAsUpEnabled(true)
 
         status = intent.getSerializableExtra(POST_TAG) as Status
-        val viewComments: Boolean = (intent.getSerializableExtra(VIEW_COMMENTS_TAG) ?: false) as Boolean
-        val postComment: Boolean = (intent.getSerializableExtra(POST_COMMENT_TAG) ?: false) as Boolean
+        val viewComments: Boolean = intent.getBooleanExtra(VIEW_COMMENTS_TAG, false)
+        val postComment: Boolean = intent.getBooleanExtra(POST_COMMENT_TAG, false)
 
         val user = db.userDao().getActiveUser()
 
diff --git a/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/notifications/NotificationsFragment.kt b/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/notifications/NotificationsFragment.kt
index 7adcb533..9ac41fd7 100644
--- a/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/notifications/NotificationsFragment.kt
+++ b/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/notifications/NotificationsFragment.kt
@@ -87,7 +87,8 @@ class NotificationsFragment : CachedFeedFragment<Notification>() {
             val intent: Intent =
                 when (type) {
                     Notification.NotificationType.mention, Notification.NotificationType.favourite,
-                    Notification.NotificationType.poll, Notification.NotificationType.reblog -> {
+                    Notification.NotificationType.poll, Notification.NotificationType.reblog,
+                    Notification.NotificationType.comment  -> {
                         openPostFromNotification()
                     }
                     Notification.NotificationType.follow -> {
@@ -113,39 +114,38 @@ class NotificationsFragment : CachedFeedFragment<Notification>() {
         ) {
             val context = textView.context
             val (format: String, drawable: Drawable?) = when (type) {
-                Notification.NotificationType.follow -> {
+                Notification.NotificationType.follow ->
                     getStringAndDrawable(
                         context,
                         R.string.followed_notification,
                         R.drawable.ic_follow
                     )
-                }
-                Notification.NotificationType.mention -> {
+                Notification.NotificationType.mention ->
                     getStringAndDrawable(
                         context,
                         R.string.mention_notification,
                         R.drawable.mention_at_24dp
                     )
-                }
-
-                Notification.NotificationType.reblog -> {
+                Notification.NotificationType.comment ->
+                    getStringAndDrawable(
+                        context,
+                        R.string.comment_notification,
+                        R.drawable.ic_comment_empty
+                    )
+                Notification.NotificationType.reblog ->
                     getStringAndDrawable(
                         context,
                         R.string.shared_notification,
                         R.drawable.ic_reblog_blue
                     )
-                }
-
-                Notification.NotificationType.favourite -> {
+                Notification.NotificationType.favourite ->
                     getStringAndDrawable(
                         context,
                         R.string.liked_notification,
                         R.drawable.ic_like_full
                     )
-                }
-                Notification.NotificationType.poll -> {
+                Notification.NotificationType.poll ->
                     getStringAndDrawable(context, R.string.poll_notification, R.drawable.poll)
-                }
             }
             textView.text = format.format(username)
             textView.setCompoundDrawablesWithIntrinsicBounds(
@@ -249,7 +249,7 @@ class NotificationsFragment : CachedFeedFragment<Notification>() {
 
         override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
             val uiModel = getItem(position)
-            uiModel.let {
+            uiModel?.let {
                 (holder as NotificationViewHolder).bind(
                         it,
                         apiHolder,
diff --git a/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/notifications/NotificationsRemoteMediator.kt b/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/notifications/NotificationsRemoteMediator.kt
index 7fbeff26..8ad0e03e 100644
--- a/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/notifications/NotificationsRemoteMediator.kt
+++ b/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/notifications/NotificationsRemoteMediator.kt
@@ -73,7 +73,7 @@ class NotificationsRemoteMediator @Inject constructor(
             db.withTransaction {
                 // clear table in the database
                 if (loadType == LoadType.REFRESH) {
-                    db.notificationDao().clearFeedContent()
+                    db.notificationDao().clearFeedContent(user.user_id, user.instance_uri)
                 }
                 db.notificationDao().insertAll(apiResponse)
             }
diff --git a/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/postFeeds/HomeFeedRemoteMediator.kt b/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/postFeeds/HomeFeedRemoteMediator.kt
index cf6cad08..b5ef519c 100644
--- a/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/postFeeds/HomeFeedRemoteMediator.kt
+++ b/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/postFeeds/HomeFeedRemoteMediator.kt
@@ -59,7 +59,7 @@ class HomeFeedRemoteMediator @Inject constructor(
             db.withTransaction {
                 // clear table in the database
                 if (loadType == LoadType.REFRESH) {
-                    db.homePostDao().clearFeedContent()
+                    db.homePostDao().clearFeedContent(user.user_id, user.instance_uri)
                 }
                 db.homePostDao().insertAll(dbObjects)
             }
diff --git a/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/postFeeds/PublicFeedRemoteMediator.kt b/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/postFeeds/PublicFeedRemoteMediator.kt
index bb68f3df..d832ecbc 100644
--- a/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/postFeeds/PublicFeedRemoteMediator.kt
+++ b/app/src/main/java/org/pixeldroid/app/posts/feeds/cachedFeeds/postFeeds/PublicFeedRemoteMediator.kt
@@ -74,7 +74,7 @@ class PublicFeedRemoteMediator @Inject constructor(
             db.withTransaction {
                 // clear table in the database
                 if (loadType == LoadType.REFRESH) {
-                    db.publicPostDao().clearFeedContent()
+                    db.publicPostDao().clearFeedContent(user.user_id, user.instance_uri)
                 }
                 db.publicPostDao().insertAll(dbObjects)
             }
diff --git a/app/src/main/java/org/pixeldroid/app/utils/api/PixelfedAPI.kt b/app/src/main/java/org/pixeldroid/app/utils/api/PixelfedAPI.kt
index f1e75801..642e0624 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/api/PixelfedAPI.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/api/PixelfedAPI.kt
@@ -3,6 +3,11 @@ package org.pixeldroid.app.utils.api
 import org.pixeldroid.app.utils.api.objects.*
 import io.reactivex.Observable
 import okhttp3.MultipartBody
+import okhttp3.OkHttpClient
+import org.pixeldroid.app.utils.db.AppDatabase
+import org.pixeldroid.app.utils.db.entities.UserDatabaseEntity
+import org.pixeldroid.app.utils.di.PixelfedAPIHolder
+import org.pixeldroid.app.utils.di.TokenAuthenticator
 import retrofit2.Response
 import retrofit2.Retrofit
 import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
@@ -28,6 +33,30 @@ interface PixelfedAPI {
                 .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                 .build().create(PixelfedAPI::class.java)
         }
+
+        private val intermediate: Retrofit.Builder = Retrofit.Builder()
+            .addConverterFactory(GsonConverterFactory.create())
+            .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
+
+
+        fun apiForUser(
+            user: UserDatabaseEntity,
+            db: AppDatabase,
+            pixelfedAPIHolder: PixelfedAPIHolder
+        ): PixelfedAPI =
+            intermediate
+                .baseUrl(user.instance_uri)
+                .client(
+                    OkHttpClient().newBuilder().authenticator(TokenAuthenticator(user, db, pixelfedAPIHolder))
+                        .addInterceptor {
+                            it.request().newBuilder().run {
+                                header("Accept", "application/json")
+                                header("Authorization", "Bearer ${user.accessToken}")
+                                it.proceed(build())
+                            }
+                        }.build()
+                )
+                .build().create(PixelfedAPI::class.java)
     }
 
 
diff --git a/app/src/main/java/org/pixeldroid/app/utils/api/objects/Notification.kt b/app/src/main/java/org/pixeldroid/app/utils/api/objects/Notification.kt
index 03b3dacc..94b73733 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/api/objects/Notification.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/api/objects/Notification.kt
@@ -38,6 +38,6 @@ data class Notification(
     override var instance_uri: String,
     ): FeedContent, FeedContentDatabase {
     enum class NotificationType: Serializable {
-        follow, mention, reblog, favourite, poll
+        follow, mention, reblog, favourite, poll, comment
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/pixeldroid/app/utils/db/AppDatabase.kt b/app/src/main/java/org/pixeldroid/app/utils/db/AppDatabase.kt
index c2a52989..88bfea96 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/db/AppDatabase.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/db/AppDatabase.kt
@@ -3,6 +3,8 @@ package org.pixeldroid.app.utils.db
 import androidx.room.Database
 import androidx.room.RoomDatabase
 import androidx.room.TypeConverters
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
 import org.pixeldroid.app.utils.db.dao.*
 import org.pixeldroid.app.utils.db.dao.feedContent.NotificationDao
 import org.pixeldroid.app.utils.db.dao.feedContent.posts.HomePostDao
@@ -29,4 +31,12 @@ abstract class AppDatabase : RoomDatabase() {
     abstract fun homePostDao(): HomePostDao
     abstract fun publicPostDao(): PublicPostDao
     abstract fun notificationDao(): NotificationDao
+}
+
+val MIGRATION_3_4 = object : Migration(3, 4) {
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("DELETE FROM homePosts")
+        database.execSQL("DELETE FROM publicPosts")
+        database.execSQL("DELETE FROM notifications")
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/pixeldroid/app/utils/db/DBUtils.kt b/app/src/main/java/org/pixeldroid/app/utils/db/DBUtils.kt
index fea14708..df33746e 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/db/DBUtils.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/db/DBUtils.kt
@@ -14,7 +14,7 @@ import java.lang.IllegalArgumentException
 
 fun addUser(db: AppDatabase, account: Account, instance_uri: String, activeUser: Boolean = true,
             accessToken: String, refreshToken: String?, clientId: String, clientSecret: String) {
-    db.userDao().insertUser(
+    db.userDao().insertOrUpdate(
             UserDatabaseEntity(
                     user_id = account.id!!,
                     instance_uri = normalizeDomain(instance_uri),
diff --git a/app/src/main/java/org/pixeldroid/app/utils/db/dao/UserDao.kt b/app/src/main/java/org/pixeldroid/app/utils/db/dao/UserDao.kt
index 396f152e..b1a696e3 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/db/dao/UserDao.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/db/dao/UserDao.kt
@@ -5,8 +5,21 @@ import org.pixeldroid.app.utils.db.entities.UserDatabaseEntity
 
 @Dao
 interface UserDao {
-    @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insertUser(user: UserDatabaseEntity)
+    /**
+     * Insert a user, if it already exists return -1
+     */
+    @Insert(onConflict = OnConflictStrategy.IGNORE)
+    fun insertUser(user: UserDatabaseEntity): Long
+
+    @Transaction
+    fun insertOrUpdate(user: UserDatabaseEntity) {
+        if (insertUser(user) == -1L) {
+            updateUser(user)
+        }
+    }
+
+    @Update
+    fun updateUser(user: UserDatabaseEntity)
 
     @Query("UPDATE users SET accessToken = :accessToken, refreshToken = :refreshToken WHERE user_id = :id and instance_uri = :instance_uri")
     fun updateAccessToken(accessToken: String, refreshToken: String, id: String, instance_uri: String)
diff --git a/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/FeedContentDao.kt b/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/FeedContentDao.kt
index d4985b07..31ef8e7d 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/FeedContentDao.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/FeedContentDao.kt
@@ -9,7 +9,7 @@ interface FeedContentDao<T: FeedContentDatabase>{
 
     fun feedContent(userId: String, instanceUri: String): PagingSource<Int, T>
 
-    suspend fun clearFeedContent()
+    suspend fun clearFeedContent(userId: String, instanceUri: String)
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     suspend fun insertAll(feedContent: List<T>)
diff --git a/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/NotificationDao.kt b/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/NotificationDao.kt
index 0a6717df..00d93218 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/NotificationDao.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/NotificationDao.kt
@@ -8,8 +8,8 @@ import org.pixeldroid.app.utils.api.objects.Notification
 @Dao
 interface NotificationDao: FeedContentDao<Notification> {
 
-    @Query("DELETE FROM notifications")
-    override suspend fun clearFeedContent()
+    @Query("DELETE FROM notifications WHERE user_id=:userId AND instance_uri=:instanceUri")
+    override suspend fun clearFeedContent(userId: String, instanceUri: String)
 
     @Query("""SELECT * FROM notifications WHERE user_id=:userId AND instance_uri=:instanceUri 
             ORDER BY CAST(created_at AS FLOAT) DESC""")
diff --git a/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/posts/HomePostDao.kt b/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/posts/HomePostDao.kt
index 2236785a..295d0b2a 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/posts/HomePostDao.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/posts/HomePostDao.kt
@@ -12,8 +12,8 @@ interface HomePostDao: FeedContentDao<HomeStatusDatabaseEntity> {
             ORDER BY CAST(created_at AS FLOAT)""")
     override fun feedContent(userId: String, instanceUri: String): PagingSource<Int, HomeStatusDatabaseEntity>
 
-    @Query("DELETE FROM homePosts")
-    override suspend fun clearFeedContent()
+    @Query("DELETE FROM homePosts WHERE user_id=:userId AND instance_uri=:instanceUri")
+    override suspend fun clearFeedContent(userId: String, instanceUri: String)
 
     @Query("DELETE FROM homePosts WHERE user_id=:userId AND instance_uri=:instanceUri AND id=:id")
     override suspend fun delete(id: String, userId: String, instanceUri: String)
diff --git a/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/posts/PublicPostDao.kt b/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/posts/PublicPostDao.kt
index 7901f0a1..8335628b 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/posts/PublicPostDao.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/db/dao/feedContent/posts/PublicPostDao.kt
@@ -12,8 +12,8 @@ interface PublicPostDao: FeedContentDao<PublicFeedStatusDatabaseEntity> {
             ORDER BY CAST(created_at AS FLOAT)""")
     override fun feedContent(userId: String, instanceUri: String): PagingSource<Int, PublicFeedStatusDatabaseEntity>
 
-    @Query("DELETE FROM publicPosts")
-    override suspend fun clearFeedContent()
+    @Query("DELETE FROM publicPosts WHERE user_id=:userId AND instance_uri=:instanceUri")
+    override suspend fun clearFeedContent(userId: String, instanceUri: String)
 
     @Query("DELETE FROM publicPosts WHERE user_id=:userId AND instance_uri=:instanceUri AND id=:id")
     override suspend fun delete(id: String, userId: String, instanceUri: String)
diff --git a/app/src/main/java/org/pixeldroid/app/utils/di/APIModule.kt b/app/src/main/java/org/pixeldroid/app/utils/di/APIModule.kt
index 06ff09a8..813356d9 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/di/APIModule.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/di/APIModule.kt
@@ -8,9 +8,7 @@ import dagger.Module
 import dagger.Provides
 import kotlinx.coroutines.runBlocking
 import okhttp3.*
-import retrofit2.Retrofit
-import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
-import retrofit2.converter.gson.GsonConverterFactory
+import org.pixeldroid.app.utils.api.PixelfedAPI.Companion.apiForUser
 import javax.inject.Singleton
 
 @Module
@@ -78,9 +76,6 @@ class TokenAuthenticator(val user: UserDatabaseEntity, val db: AppDatabase, val
 }
 
 class PixelfedAPIHolder(private val db: AppDatabase){
-    private val intermediate: Retrofit.Builder = Retrofit.Builder()
-        .addConverterFactory(GsonConverterFactory.create())
-        .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
 
     var api: PixelfedAPI? =
         db.userDao().getActiveUser()?.let {
@@ -90,21 +85,8 @@ class PixelfedAPIHolder(private val db: AppDatabase){
     fun setToCurrentUser(
         user: UserDatabaseEntity = db.userDao().getActiveUser()!!
     ): PixelfedAPI {
-        val newAPI = intermediate
-            .baseUrl(user.instance_uri)
-            .client(
-                OkHttpClient().newBuilder().authenticator(TokenAuthenticator(user, db, this))
-                    .addInterceptor {
-                    it.request().newBuilder().run {
-                        header("Accept", "application/json")
-                        header("Authorization", "Bearer ${user.accessToken}")
-                        it.proceed(build())
-                    }
-                }.build()
-            )
-            .build().create(PixelfedAPI::class.java)
+        val newAPI = apiForUser(user, db, this)
         api = newAPI
         return newAPI
     }
-
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/pixeldroid/app/utils/di/DatabaseModule.kt b/app/src/main/java/org/pixeldroid/app/utils/di/DatabaseModule.kt
index 6b2e4dbe..bc08dec5 100644
--- a/app/src/main/java/org/pixeldroid/app/utils/di/DatabaseModule.kt
+++ b/app/src/main/java/org/pixeldroid/app/utils/di/DatabaseModule.kt
@@ -5,6 +5,7 @@ import androidx.room.Room
 import org.pixeldroid.app.utils.db.AppDatabase
 import dagger.Module
 import dagger.Provides
+import org.pixeldroid.app.utils.db.MIGRATION_3_4
 import javax.inject.Singleton
 
 @Module
@@ -16,6 +17,6 @@ class DatabaseModule(private val context: Context) {
         return Room.databaseBuilder(
             context,
             AppDatabase::class.java, "pixeldroid"
-        ).allowMainThreadQueries().build()
+        ).addMigrations(MIGRATION_3_4).allowMainThreadQueries().build()
     }
 }
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 34cacd40..65c565cf 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -50,6 +50,12 @@
     <!-- Notifications: end of poll notification -->
     <string name="poll_notification">"%1$s's poll has ended"</string>
 
+    <!-- Notifications: comment notification -->
+    <string name="comment_notification">%1$s commented on your post</string>
+
+    <!-- Notifications: other notification -->
+    <string name="other_notification">"Notification from %1$s"</string>
+
     <!-- Login page -->
     <string name="whats_an_instance">"What's an instance?"</string>
     <string name="whats_an_instance_explanation">"You might be confused by the text field asking for the domain of your 'instance'.