diff --git a/src/boot/after_store.js b/src/boot/after_store.js
index b7e97cf45..97f9b8a42 100644
--- a/src/boot/after_store.js
+++ b/src/boot/after_store.js
@@ -17,7 +17,7 @@ config.autoAddCss = false
 import App from '../App.vue'
 import backendInteractorService from '../services/backend_interactor_service/backend_interactor_service.js'
 import FaviconService from '../services/favicon_service/favicon_service.js'
-import { applyConfig } from '../services/style_setter/style_setter.js'
+import { applyStyleConfig } from '../services/style_setter/style_setter.js'
 import { initServiceWorker, updateFocus } from '../services/sw/sw.js'
 import {
   windowHeight,
@@ -88,25 +88,25 @@ const getInstanceConfig = async ({ store }) => {
         data.pleroma,
       )
       useInstanceStore().set({
-        name: 'textlimit',
+        path: 'textlimit',
         value: textlimit,
       })
       useInstanceStore().set({
-        name: 'accountApprovalRequired',
+        path: 'accountApprovalRequired',
         value: data.approval_required,
       })
       useInstanceStore().set({
-        name: 'birthdayRequired',
+        path: 'birthdayRequired',
         value: !!data.pleroma?.metadata.birthday_required,
       })
       useInstanceStore().set({
-        name: 'birthdayMinAge',
+        path: 'birthdayMinAge',
         value: data.pleroma?.metadata.birthday_min_age || 0,
       })
 
       if (vapidPublicKey) {
         useInstanceStore().set({
-          name: 'vapidPublicKey',
+          path: 'vapidPublicKey',
           value: vapidPublicKey,
         })
       }
@@ -258,7 +258,7 @@ const getAppSecret = async ({ store }) => {
 const resolveStaffAccounts = ({ store, accounts }) => {
   const nicknames = accounts.map((uri) => uri.split('/').pop())
   useInstanceStore().set({
-    name: 'staffAccounts',
+    path: 'staffAccounts',
     value: nicknames,
   })
 }
@@ -384,20 +384,20 @@ const getNodeInfo = async ({ store }) => {
 
       const software = data.software
       useInstanceStore().set({
-        name: 'backendVersion',
+        path: 'backendVersion',
         value: software.version,
       })
       useInstanceStore().set({
-        name: 'backendRepository',
+        path: 'backendRepository',
         value: software.repository,
       })
 
       const priv = metadata.private
-      useInstanceStore().set({ name: 'privateMode', value: priv })
+      useInstanceStore().set({ path: 'privateMode', value: priv })
 
       const frontendVersion = window.___pleromafe_commit_hash
       useInstanceStore().set({
-        name: 'frontendVersion',
+        path: 'frontendVersion',
         value: frontendVersion,
       })
 
@@ -547,7 +547,7 @@ const afterStoreSetup = async ({ pinia, store, storageError, i18n }) => {
     return Promise.reject(e)
   }
 
-  applyConfig(store.state.config, i18n.global)
+  applyStyleConfig(store.state.config, i18n.global)
 
   // Now we can try getting the server settings and logging in
   // Most of these are preloaded into the index.html so blocking is minimized
diff --git a/src/components/mfa_form/recovery_form.js b/src/components/mfa_form/recovery_form.js
index 785ecc0a3..f4ddcadd0 100644
--- a/src/components/mfa_form/recovery_form.js
+++ b/src/components/mfa_form/recovery_form.js
@@ -2,8 +2,6 @@ import { mapActions, mapState, mapStores } from 'pinia'
 
 import mfaApi from '../../services/new_api/mfa.js'
 
-import mfaApi from '../../services/new_api/mfa.js'
-
 import { useAuthFlowStore } from 'src/stores/auth_flow.js'
 import { useInstanceStore } from 'src/stores/instance.js'
 import { useOAuthStore } from 'src/stores/oauth.js'
diff --git a/src/components/mobile_nav/mobile_nav.js b/src/components/mobile_nav/mobile_nav.js
index c5b1d66f6..4c7914f32 100644
--- a/src/components/mobile_nav/mobile_nav.js
+++ b/src/components/mobile_nav/mobile_nav.js
@@ -13,7 +13,7 @@ import SideDrawer from '../side_drawer/side_drawer.vue'
 
 import { useAnnouncementsStore } from 'src/stores/announcements.js'
 import { useInstanceStore } from 'src/stores/instance.js'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage.js'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import { library } from '@fortawesome/fontawesome-svg-core'
 import {
@@ -75,7 +75,7 @@ const MobileNav = {
       return this.$route.name === 'chat'
     },
     ...mapState(useAnnouncementsStore, ['unreadAnnouncementCount']),
-    ...mapState(useServerSideStorageStore, {
+    ...mapState(useSyncConfigStore, {
       pinnedItems: (store) =>
         new Set(store.prefsStorage.collections.pinnedNavItems).has('chats'),
     }),
diff --git a/src/components/nav_panel/nav_panel.js b/src/components/nav_panel/nav_panel.js
index 8aff31f02..9e5901f24 100644
--- a/src/components/nav_panel/nav_panel.js
+++ b/src/components/nav_panel/nav_panel.js
@@ -12,7 +12,7 @@ import NavigationPins from 'src/components/navigation/navigation_pins.vue'
 import { useAnnouncementsStore } from 'src/stores/announcements'
 import { useInstanceStore } from 'src/stores/instance.js'
 import { useInstanceCapabilitiesStore } from 'src/stores/instance_capabilities.js'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import { library } from '@fortawesome/fontawesome-svg-core'
 import {
@@ -84,28 +84,28 @@ const NavPanel = {
       this.editMode = !this.editMode
     },
     toggleCollapse() {
-      useServerSideStorageStore().setPreference({
+      useSyncConfigStore().setPreference({
         path: 'simple.collapseNav',
         value: !this.collapsed,
       })
-      useServerSideStorageStore().pushServerSideStorage()
+      useSyncConfigStore().pushSyncConfig()
     },
     isPinned(item) {
       return this.pinnedItems.has(item)
     },
     togglePin(item) {
       if (this.isPinned(item)) {
-        useServerSideStorageStore().removeCollectionPreference({
+        useSyncConfigStore().removeCollectionPreference({
           path: 'collections.pinnedNavItems',
           value: item,
         })
       } else {
-        useServerSideStorageStore().addCollectionPreference({
+        useSyncConfigStore().addCollectionPreference({
           path: 'collections.pinnedNavItems',
           value: item,
         })
       }
-      useServerSideStorageStore().pushServerSideStorage()
+      useSyncConfigStore().pushSyncConfig()
     },
   },
   computed: {
@@ -122,7 +122,7 @@ const NavPanel = {
     ...mapPiniaState(useInstanceStore, {
       privateMode: (store) => store.private,
     }),
-    ...mapPiniaState(useServerSideStorageStore, {
+    ...mapPiniaState(useSyncConfigStore, {
       collapsed: (store) => store.prefsStorage.simple.collapseNav,
       pinnedItems: (store) =>
         new Set(store.prefsStorage.collections.pinnedNavItems),
diff --git a/src/components/navigation/navigation_entry.js b/src/components/navigation/navigation_entry.js
index 3384534be..7a43000ce 100644
--- a/src/components/navigation/navigation_entry.js
+++ b/src/components/navigation/navigation_entry.js
@@ -5,7 +5,7 @@ import { routeTo } from 'src/components/navigation/navigation.js'
 import OptionalRouterLink from 'src/components/optional_router_link/optional_router_link.vue'
 
 import { useAnnouncementsStore } from 'src/stores/announcements.js'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage.js'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import { library } from '@fortawesome/fontawesome-svg-core'
 import { faThumbtack } from '@fortawesome/free-solid-svg-icons'
@@ -23,17 +23,17 @@ const NavigationEntry = {
     },
     togglePin(value) {
       if (this.isPinned(value)) {
-        useServerSideStorageStore().removeCollectionPreference({
+        useSyncConfigStore().removeCollectionPreference({
           path: 'collections.pinnedNavItems',
           value,
         })
       } else {
-        useServerSideStorageStore().addCollectionPreference({
+        useSyncConfigStore().addCollectionPreference({
           path: 'collections.pinnedNavItems',
           value,
         })
       }
-      useServerSideStorageStore().pushServerSideStorage()
+      useSyncConfigStore().pushSyncConfig()
     },
   },
   computed: {
@@ -47,7 +47,7 @@ const NavigationEntry = {
     ...mapState({
       currentUser: (state) => state.users.currentUser,
     }),
-    ...mapPiniaState(useServerSideStorageStore, {
+    ...mapPiniaState(useSyncConfigStore, {
       pinnedItems: (store) =>
         new Set(store.prefsStorage.collections.pinnedNavItems),
     }),
diff --git a/src/components/navigation/navigation_pins.js b/src/components/navigation/navigation_pins.js
index 698bf5d59..85f6fafee 100644
--- a/src/components/navigation/navigation_pins.js
+++ b/src/components/navigation/navigation_pins.js
@@ -18,7 +18,7 @@ import { useBookmarkFoldersStore } from 'src/stores/bookmark_folders'
 import { useInstanceStore } from 'src/stores/instance.js'
 import { useInstanceCapabilitiesStore } from 'src/stores/instance_capabilities.js'
 import { useListsStore } from 'src/stores/lists'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import { library } from '@fortawesome/fontawesome-svg-core'
 import {
@@ -70,7 +70,7 @@ const NavPanel = {
     ...mapPiniaState(useBookmarkFoldersStore, {
       bookmarks: getBookmarkFolderEntries,
     }),
-    ...mapPiniaState(useServerSideStorageStore, {
+    ...mapPiniaState(useSyncConfigStore, {
       pinnedItems: (store) =>
         new Set(store.prefsStorage.collections.pinnedNavItems),
     }),
diff --git a/src/components/settings_modal/helpers/setting.js b/src/components/settings_modal/helpers/setting.js
index a986ef36c..654eacaa0 100644
--- a/src/components/settings_modal/helpers/setting.js
+++ b/src/components/settings_modal/helpers/setting.js
@@ -345,7 +345,8 @@ export default {
     },
     matchesExpertLevel() {
       const settingExpertLevel = this.expert || 0
-      const userToggleExpert = this.$store.state.config.expertLevel || 0
+      const userToggleExpert =
+        useSyncConfigStore().mergedConfig.expertLevel || 0
 
       return settingExpertLevel <= userToggleExpert
     },
diff --git a/src/components/settings_modal/settings_modal.js b/src/components/settings_modal/settings_modal.js
index f2c071045..866459314 100644
--- a/src/components/settings_modal/settings_modal.js
+++ b/src/components/settings_modal/settings_modal.js
@@ -9,6 +9,7 @@ import PanelLoading from 'src/components/panel_loading/panel_loading.vue'
 import Popover from '../popover/popover.vue'
 
 import { useInterfaceStore } from 'src/stores/interface.js'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import {
   newExporter,
@@ -191,11 +192,11 @@ const SettingsModal = {
     }),
     expertLevel: {
       get() {
-        return this.$store.state.config.expertLevel > 0
+        return useSyncConfigStore().mergedConfig.expertLevel > 0
       },
       set(value) {
-        this.$store.dispatch('setOption', {
-          name: 'expertLevel',
+        useSyncConfigStore().setPreference({
+          path: 'simple.expertLevel',
           value: value ? 1 : 0,
         })
       },
diff --git a/src/components/settings_modal/tabs/clutter_tab.js b/src/components/settings_modal/tabs/clutter_tab.js
index 23e069d21..f81ad7040 100644
--- a/src/components/settings_modal/tabs/clutter_tab.js
+++ b/src/components/settings_modal/tabs/clutter_tab.js
@@ -12,7 +12,7 @@ import UnitSetting from '../helpers/unit_setting.vue'
 
 import { useInstanceStore } from 'src/stores/instance.js'
 import { useInstanceCapabilitiesStore } from 'src/stores/instance_capabilities.js'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 const ClutterTab = {
   components: {
@@ -33,7 +33,7 @@ const ClutterTab = {
         store.instanceIdentity.showInstanceSpecificPanel &&
         store.instanceIdentity.instanceSpecificPanelContent,
     }),
-    ...mapState(useServerSideStorageStore, {
+    ...mapState(useSyncConfigStore, {
       muteFilters: (store) =>
         Object.entries(store.prefsStorage.simple.muteFilters),
       muteFiltersObject: (store) => store.prefsStorage.simple.muteFilters,
@@ -89,10 +89,10 @@ const ClutterTab = {
     },
   },
   methods: {
-    ...mapActions(useServerSideStorageStore, [
+    ...mapActions(useSyncConfigStore, [
       'setPreference',
       'unsetPreference',
-      'pushServerSideStorage',
+      'pushSyncConfig',
     ]),
     getDatetimeLocal(timestamp) {
       const date = new Date(timestamp)
@@ -139,7 +139,7 @@ const ClutterTab = {
       filter.order = this.muteFilters.length + 2
       this.muteFiltersDraftObject[newId] = filter
       this.setPreference({ path: 'simple.muteFilters.' + newId, value: filter })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
     },
     exportFilter(id) {
       this.exportedFilter = { ...this.muteFiltersDraftObject[id] }
@@ -155,19 +155,19 @@ const ClutterTab = {
 
       this.muteFiltersDraftObject[newId] = filter
       this.setPreference({ path: 'simple.muteFilters.' + newId, value: filter })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
     },
     deleteFilter(id) {
       delete this.muteFiltersDraftObject[id]
       this.unsetPreference({ path: 'simple.muteFilters.' + id, value: null })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
     },
     purgeExpiredFilters() {
       this.muteFiltersExpired.forEach(([id]) => {
         delete this.muteFiltersDraftObject[id]
         this.unsetPreference({ path: 'simple.muteFilters.' + id, value: null })
       })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
     },
     updateFilter(id, field, value) {
       const filter = { ...this.muteFiltersDraftObject[id] }
@@ -193,7 +193,7 @@ const ClutterTab = {
         path: 'simple.muteFilters.' + id,
         value: this.muteFiltersDraftObject[id],
       })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
       this.muteFiltersDraftDirty[id] = false
     },
   },
diff --git a/src/components/settings_modal/tabs/filtering_tab.js b/src/components/settings_modal/tabs/filtering_tab.js
index 68efbe762..a0544dd30 100644
--- a/src/components/settings_modal/tabs/filtering_tab.js
+++ b/src/components/settings_modal/tabs/filtering_tab.js
@@ -13,7 +13,7 @@ import UnitSetting from '../helpers/unit_setting.vue'
 
 import { useInstanceCapabilitiesStore } from 'src/stores/instance_capabilities.js'
 import { useInterfaceStore } from 'src/stores/interface'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import {
   newExporter,
@@ -36,11 +36,11 @@ const FilteringTab = {
         label: this.$t(`user_card.mute_block_${mode}`),
       })),
       muteFiltersDraftObject: cloneDeep(
-        useServerSideStorageStore().prefsStorage.simple.muteFilters,
+        useSyncConfigStore().prefsStorage.simple.muteFilters,
       ),
       muteFiltersDraftDirty: Object.fromEntries(
         Object.entries(
-          useServerSideStorageStore().prefsStorage.simple.muteFilters,
+          useSyncConfigStore().prefsStorage.simple.muteFilters,
         ).map(([k]) => [k, false]),
       ),
       exportedFilter: null,
@@ -92,7 +92,7 @@ const FilteringTab = {
   },
   computed: {
     ...SharedComputedObject(),
-    ...mapState(useServerSideStorageStore, {
+    ...mapState(useSyncConfigStore, {
       muteFilters: (store) =>
         Object.entries(store.prefsStorage.simple.muteFilters),
       muteFiltersObject: (store) => store.prefsStorage.simple.muteFilters,
@@ -149,10 +149,10 @@ const FilteringTab = {
     },
   },
   methods: {
-    ...mapActions(useServerSideStorageStore, [
+    ...mapActions(useSyncConfigStore, [
       'setPreference',
       'unsetPreference',
-      'pushServerSideStorage',
+      'pushSyncConfig',
     ]),
     getDatetimeLocal(timestamp) {
       const date = new Date(timestamp)
@@ -199,7 +199,7 @@ const FilteringTab = {
       filter.order = this.muteFilters.length + 2
       this.muteFiltersDraftObject[newId] = filter
       this.setPreference({ path: 'simple.muteFilters.' + newId, value: filter })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
     },
     exportFilter(id) {
       this.exportedFilter = { ...this.muteFiltersDraftObject[id] }
@@ -215,19 +215,19 @@ const FilteringTab = {
 
       this.muteFiltersDraftObject[newId] = filter
       this.setPreference({ path: 'simple.muteFilters.' + newId, value: filter })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
     },
     deleteFilter(id) {
       delete this.muteFiltersDraftObject[id]
       this.unsetPreference({ path: 'simple.muteFilters.' + id, value: null })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
     },
     purgeExpiredFilters() {
       this.muteFiltersExpired.forEach(([id]) => {
         delete this.muteFiltersDraftObject[id]
         this.unsetPreference({ path: 'simple.muteFilters.' + id, value: null })
       })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
     },
     updateFilter(id, field, value) {
       const filter = { ...this.muteFiltersDraftObject[id] }
@@ -253,7 +253,7 @@ const FilteringTab = {
         path: 'simple.muteFilters.' + id,
         value: this.muteFiltersDraftObject[id],
       })
-      this.pushServerSideStorage()
+      this.pushSyncConfig()
       this.muteFiltersDraftDirty[id] = false
     },
   },
diff --git a/src/components/settings_modal/tabs/general_tab.js b/src/components/settings_modal/tabs/general_tab.js
index 0d8f9a786..3f777f51f 100644
--- a/src/components/settings_modal/tabs/general_tab.js
+++ b/src/components/settings_modal/tabs/general_tab.js
@@ -11,6 +11,7 @@ import UnitSetting from '../helpers/unit_setting.vue'
 
 import { useInstanceStore } from 'src/stores/instance.js'
 import { useInstanceCapabilitiesStore } from 'src/stores/instance_capabilities.js'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import localeService from 'src/services/locale/locale.service.js'
 
@@ -48,6 +49,9 @@ const GeneralTab = {
     },
     ...SharedComputedObject(),
     ...mapState(useInstanceCapabilitiesStore, ['blockExpiration']),
+    ...mapState(useSyncConfigStore, {
+      theme3hacks: (store) => store.mergedConfig.theme3hacks,
+    }),
   },
   methods: {
     updateProfile() {
diff --git a/src/components/status/status.js b/src/components/status/status.js
index fbea34b4b..786864244 100644
--- a/src/components/status/status.js
+++ b/src/components/status/status.js
@@ -22,7 +22,7 @@ import UserPopover from '../user_popover/user_popover.vue'
 
 import { useInstanceStore } from 'src/stores/instance.js'
 import { useInstanceCapabilitiesStore } from 'src/stores/instance_capabilities.js'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import generateProfileLink from 'src/services/user_profile_link_generator/user_profile_link_generator'
 
@@ -259,9 +259,7 @@ const Status = {
     },
     muteFilterHits() {
       return muteFilterHits(
-        Object.values(
-          useServerSideStorageStore().prefsStorage.simple.muteFilters,
-        ),
+        Object.values(useSyncConfigStore().prefsStorage.simple.muteFilters),
         this.status,
       )
     },
diff --git a/src/components/status_action_buttons/status_action_buttons.js b/src/components/status_action_buttons/status_action_buttons.js
index 2e08797c8..9938e6382 100644
--- a/src/components/status_action_buttons/status_action_buttons.js
+++ b/src/components/status_action_buttons/status_action_buttons.js
@@ -5,7 +5,7 @@ import Popover from 'src/components/popover/popover.vue'
 import ActionButtonContainer from './action_button_container.vue'
 import { BUTTONS } from './buttons_definitions.js'
 
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage.js'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import genRandomSeed from 'src/services/random_seed/random_seed.service.js'
 
@@ -36,7 +36,7 @@ const StatusActionButtons = {
     ActionButtonContainer,
   },
   computed: {
-    ...mapState(useServerSideStorageStore, {
+    ...mapState(useSyncConfigStore, {
       pinnedItems: (store) =>
         new Set(store.prefsStorage.collections.pinnedStatusActions),
     }),
@@ -111,18 +111,18 @@ const StatusActionButtons = {
       return this.pinnedItems.has(button.name)
     },
     unpin(button) {
-      useServerSideStorageStore().removeCollectionPreference({
+      useSyncConfigStore().removeCollectionPreference({
         path: 'collections.pinnedStatusActions',
         value: button.name,
       })
-      useServerSideStorageStore().pushServerSideStorage()
+      useSyncConfigStore().pushSyncConfig()
     },
     pin(button) {
-      useServerSideStorageStore().addCollectionPreference({
+      useSyncConfigStore().addCollectionPreference({
         path: 'collections.pinnedStatusActions',
         value: button.name,
       })
-      useServerSideStorageStore().pushServerSideStorage()
+      useSyncConfigStore().pushSyncConfig()
     },
     getComponent(button) {
       if (!this.$store.state.users.currentUser && button.anonLink) {
diff --git a/src/components/update_notification/update_notification.js b/src/components/update_notification/update_notification.js
index a8bc60676..78aaa79e8 100644
--- a/src/components/update_notification/update_notification.js
+++ b/src/components/update_notification/update_notification.js
@@ -1,7 +1,7 @@
 import Modal from 'src/components/modal/modal.vue'
 
 import { useInstanceStore } from 'src/stores/instance.js'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage.js'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import pleromaTanFoxMask from 'src/assets/pleromatan_apology_fox_mask.png'
 import pleromaTanMask from 'src/assets/pleromatan_apology_mask.png'
@@ -41,9 +41,9 @@ const UpdateNotification = {
       return (
         !useInstanceStore().disableUpdateNotification &&
         this.$store.state.users.currentUser &&
-        useServerSideStorageStore().flagStorage.updateCounter <
+        useSyncConfigStore().flagStorage.updateCounter <
           CURRENT_UPDATE_COUNTER &&
-        !useServerSideStorageStore().prefsStorage.simple.dontShowUpdateNotifs
+        !useSyncConfigStore().prefsStorage.simple.dontShowUpdateNotifs
       )
     },
   },
@@ -53,22 +53,22 @@ const UpdateNotification = {
     },
     neverShowAgain() {
       this.toggleShow()
-      useServerSideStorageStore().setFlag({
+      useSyncConfigStore().setFlag({
         flag: 'updateCounter',
         value: CURRENT_UPDATE_COUNTER,
       })
-      useServerSideStorageStore().setPreference({
+      useSyncConfigStore().setPreference({
         path: 'simple.dontShowUpdateNotifs',
         value: true,
       })
-      useServerSideStorageStore().pushServerSideStorage()
+      useSyncConfigStore().pushSyncConfig()
     },
     dismiss() {
-      useServerSideStorageStore().setFlag({
+      useSyncConfigStore().setFlag({
         flag: 'updateCounter',
         value: CURRENT_UPDATE_COUNTER,
       })
-      useServerSideStorageStore().pushServerSideStorage()
+      useSyncConfigStore().pushSyncConfig()
     },
   },
   mounted() {
diff --git a/src/modules/config.js b/src/modules/config.js
index 82acf8162..b68d547df 100644
--- a/src/modules/config.js
+++ b/src/modules/config.js
@@ -3,7 +3,7 @@ import { set } from 'lodash'
 
 import messages from '../i18n/messages'
 import localeService from '../services/locale/locale.service.js'
-import { applyConfig } from '../services/style_setter/style_setter.js'
+import { applyStyleConfig } from '../services/style_setter/style_setter.js'
 import { defaultState, instanceDefaultConfig } from './default_config_state.js'
 
 import { useEmojiStore } from 'src/stores/emoji.js'
@@ -71,7 +71,7 @@ const config = {
   mutations: {
     setOptionTemporarily(state, { name, value }) {
       set(state, name, value)
-      applyConfig(state)
+      applyStyleConfig(state)
     },
     setOption(state, { name, value }) {
       set(state, name, value)
@@ -162,7 +162,7 @@ const config = {
       } else {
         commit('setOption', { name, value })
         if (APPEARANCE_SETTINGS_KEYS.has(name)) {
-          applyConfig(state)
+          applyStyleConfig(state)
         }
         if (name.startsWith('theme3hacks')) {
           dispatch('applyTheme', { recompile: true })
diff --git a/src/modules/default_config_state.js b/src/modules/default_config_state.js
index 1e9726b91..2f18fe9a5 100644
--- a/src/modules/default_config_state.js
+++ b/src/modules/default_config_state.js
@@ -1,4 +1,4 @@
-const browserLocale = (window.navigator.language || 'en').split('-')[0]
+const browserLocale = (navigator.language || 'en').split('-')[0]
 
 /// Instance config entries provided by static config or pleroma api
 /// Put settings here only if it does not make sense for a normal user
diff --git a/src/modules/notifications.js b/src/modules/notifications.js
index cb3d430db..9507177a2 100644
--- a/src/modules/notifications.js
+++ b/src/modules/notifications.js
@@ -10,7 +10,7 @@ import {
 } from '../services/notification_utils/notification_utils.js'
 
 import { useReportsStore } from 'src/stores/reports.js'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage.js'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 const emptyNotifications = () => ({
   desktopNotificationSilence: true,
@@ -119,9 +119,7 @@ export const notifications = {
 
           maybeShowNotification(
             store,
-            Object.values(
-              useServerSideStorageStore().prefsStorage.simple.muteFilters,
-            ),
+            Object.values(useSyncConfigStore().prefsStorage.simple.muteFilters),
             notification,
           )
         } else if (notification.seen) {
diff --git a/src/modules/users.js b/src/modules/users.js
index b0febcd3a..ea2a0ccb4 100644
--- a/src/modules/users.js
+++ b/src/modules/users.js
@@ -26,7 +26,7 @@ import { useInstanceStore } from 'src/stores/instance.js'
 import { useInstanceCapabilitiesStore } from 'src/stores/instance_capabilities.js'
 import { useInterfaceStore } from 'src/stores/interface.js'
 import { useOAuthStore } from 'src/stores/oauth.js'
-import { useServerSideStorageStore } from 'src/stores/serverSideStorage'
+import { useSyncConfigStore } from 'src/stores/sync_config.js'
 
 import { declarations } from 'src/modules/config_declaration'
 
@@ -682,7 +682,7 @@ const users = {
           useInterfaceStore().setLastTimeline('public-timeline')
           useInterfaceStore().setLayoutWidth(windowWidth())
           useInterfaceStore().setLayoutHeight(windowHeight())
-          store.commit('clearServerSideStorage')
+          //useSyncConfigStore().clearSyncConfig()
         })
     },
     loginUser(store, accessToken) {
@@ -702,7 +702,7 @@ const users = {
               user.domainMutes = []
               commit('setCurrentUser', user)
 
-              useServerSideStorageStore().setServerSideStorage(user)
+              useSyncConfigStore().setSyncConfig(user)
               commit('addNewUsers', [user])
 
               useEmojiStore().fetchEmoji()
@@ -723,17 +723,16 @@ const users = {
               /*
               // Reset wordfilter
               Object.keys(
-                useServerSideStorageStore().prefsStorage.simple.muteFilters
+                useSyncConfigStore().prefsStorage.simple.muteFilters
               ).forEach(key => {
-                useServerSideStorageStore().unsetPreference({ path: 'simple.muteFilters.' + key, value: null })
+                useSyncConfigStore().unsetPreference({ path: 'simple.muteFilters.' + key, value: null })
               })
 
               // Reset flag to 0 to re-run migrations
-              useServerSideStorageStore().setFlag({ flag: 'configMigration', value: 0 })
+              useSyncConfigStore().setFlag({ flag: 'configMigration', value: 0 })
               /**/
 
-              const { configMigration } =
-                useServerSideStorageStore().flagStorage
+              const { configMigration } = useSyncConfigStore().flagStorage
               declarations
                 .filter((x) => {
                   return (
@@ -744,12 +743,12 @@ const users = {
                 })
                 .toSorted((a, b) => a.configMigration - b.configMigration)
                 .forEach((value) => {
-                  value.migration(useServerSideStorageStore(), store.rootState)
-                  useServerSideStorageStore().setFlag({
+                  value.migration(useSyncConfigStore(), store.rootState)
+                  useSyncConfigStore().setFlag({
                     flag: 'configMigration',
                     value: value.migrationNum,
                   })
-                  useServerSideStorageStore().pushServerSideStorage()
+                  useSyncConfigStore().pushSyncConfig()
                 })
 
               if (user.token) {