diff --git a/.eslintrc.js b/.eslintrc.js
index 1800daa55d..badcb1dcb9 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -319,7 +319,7 @@ module.exports = {
               },
               // Internal packages
               {
-                pattern: '{mastodon/**}',
+                pattern: '{mastodon/**,flavours/glitch-soc/**}',
                 group: 'internal',
                 position: 'after',
               },
diff --git a/app/javascript/flavours/glitch/actions/app.ts b/app/javascript/flavours/glitch/actions/app.ts
index 46b2cdf93c..6fbfc07f68 100644
--- a/app/javascript/flavours/glitch/actions/app.ts
+++ b/app/javascript/flavours/glitch/actions/app.ts
@@ -1,8 +1,9 @@
 import { createAction } from '@reduxjs/toolkit';
+
 import type { LayoutType } from '../is_mobile';
 
-type ChangeLayoutPayload = {
+interface ChangeLayoutPayload {
   layout: LayoutType;
-};
+}
 export const changeLayout =
   createAction<ChangeLayoutPayload>('APP_LAYOUT_CHANGE');
diff --git a/app/javascript/flavours/glitch/actions/pin_statuses.js b/app/javascript/flavours/glitch/actions/pin_statuses.js
index d8c0a13737..a0d5933b1c 100644
--- a/app/javascript/flavours/glitch/actions/pin_statuses.js
+++ b/app/javascript/flavours/glitch/actions/pin_statuses.js
@@ -1,12 +1,12 @@
 import api from '../api';
 import { importFetchedStatuses } from './importer';
 
+import { me } from 'flavours/glitch/initial_state';
+
 export const PINNED_STATUSES_FETCH_REQUEST = 'PINNED_STATUSES_FETCH_REQUEST';
 export const PINNED_STATUSES_FETCH_SUCCESS = 'PINNED_STATUSES_FETCH_SUCCESS';
 export const PINNED_STATUSES_FETCH_FAIL = 'PINNED_STATUSES_FETCH_FAIL';
 
-import { me } from 'flavours/glitch/initial_state';
-
 export function fetchPinnedStatuses() {
   return (dispatch, getState) => {
     dispatch(fetchPinnedStatusesRequest());
diff --git a/app/javascript/flavours/glitch/components/animated_number.tsx b/app/javascript/flavours/glitch/components/animated_number.tsx
index f6c77d35ff..b6b073161b 100644
--- a/app/javascript/flavours/glitch/components/animated_number.tsx
+++ b/app/javascript/flavours/glitch/components/animated_number.tsx
@@ -1,8 +1,11 @@
 import React, { useCallback, useState } from 'react';
-import ShortNumber from './short_number';
+
 import { TransitionMotion, spring } from 'react-motion';
+
 import { reduceMotion } from '../initial_state';
 
+import ShortNumber from './short_number';
+
 const obfuscatedCount = (count: number) => {
   if (count < 0) {
     return 0;
@@ -13,10 +16,10 @@ const obfuscatedCount = (count: number) => {
   }
 };
 
-type Props = {
+interface Props {
   value: number;
   obfuscate?: boolean;
-};
+}
 export const AnimatedNumber: React.FC<Props> = ({ value, obfuscate }) => {
   const [previousValue, setPreviousValue] = useState(value);
   const [direction, setDirection] = useState<1 | -1>(1);
@@ -64,7 +67,11 @@ export const AnimatedNumber: React.FC<Props> = ({ value, obfuscate }) => {
                 transform: `translateY(${style.y * 100}%)`,
               }}
             >
-              {obfuscate ? obfuscatedCount(data) : <ShortNumber value={data} />}
+              {obfuscate ? (
+                obfuscatedCount(data as number)
+              ) : (
+                <ShortNumber value={data as number} />
+              )}
             </span>
           ))}
         </span>
diff --git a/app/javascript/flavours/glitch/components/avatar.tsx b/app/javascript/flavours/glitch/components/avatar.tsx
index 1bd7739f5f..11253a8e94 100644
--- a/app/javascript/flavours/glitch/components/avatar.tsx
+++ b/app/javascript/flavours/glitch/components/avatar.tsx
@@ -1,16 +1,18 @@
 import * as React from 'react';
+
 import classNames from 'classnames';
-import { autoPlayGif } from 'flavours/glitch/initial_state';
+
 import { useHovering } from 'flavours/glitch/hooks/useHovering';
+import { autoPlayGif } from 'flavours/glitch/initial_state';
 import type { Account } from 'flavours/glitch/types/resources';
 
-type Props = {
+interface Props {
   account: Account | undefined;
   className?: string;
   size: number;
   style?: React.CSSProperties;
   inline?: boolean;
-};
+}
 
 export const Avatar: React.FC<Props> = ({
   account,
diff --git a/app/javascript/flavours/glitch/components/blurhash.tsx b/app/javascript/flavours/glitch/components/blurhash.tsx
index 7005136765..1550d0b7a5 100644
--- a/app/javascript/flavours/glitch/components/blurhash.tsx
+++ b/app/javascript/flavours/glitch/components/blurhash.tsx
@@ -1,14 +1,14 @@
-import { decode } from 'blurhash';
 import React, { useRef, useEffect } from 'react';
 
-type Props = {
+import { decode } from 'blurhash';
+
+interface Props extends React.HTMLAttributes<HTMLCanvasElement> {
   hash: string;
   width?: number;
   height?: number;
   dummy?: boolean; // Whether dummy mode is enabled. If enabled, nothing is rendered and canvas left untouched
   children?: never;
-  [key: string]: any;
-};
+}
 const Blurhash: React.FC<Props> = ({
   hash,
   width = 32,
@@ -21,6 +21,7 @@ const Blurhash: React.FC<Props> = ({
   useEffect(() => {
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
     const canvas = canvasRef.current!;
+
     // eslint-disable-next-line no-self-assign
     canvas.width = canvas.width; // resets canvas
 
diff --git a/app/javascript/flavours/glitch/components/domain.tsx b/app/javascript/flavours/glitch/components/domain.tsx
index af0fec35af..9e8e04b65c 100644
--- a/app/javascript/flavours/glitch/components/domain.tsx
+++ b/app/javascript/flavours/glitch/components/domain.tsx
@@ -1,6 +1,9 @@
 import React, { useCallback } from 'react';
+
+import type { InjectedIntl } from 'react-intl';
+import { defineMessages, injectIntl } from 'react-intl';
+
 import { IconButton } from './icon_button';
-import { InjectedIntl, defineMessages, injectIntl } from 'react-intl';
 
 const messages = defineMessages({
   unblockDomain: {
@@ -9,11 +12,11 @@ const messages = defineMessages({
   },
 });
 
-type Props = {
+interface Props {
   domain: string;
   onUnblockDomain: (domain: string) => void;
   intl: InjectedIntl;
-};
+}
 const _Domain: React.FC<Props> = ({ domain, onUnblockDomain, intl }) => {
   const handleDomainUnblock = useCallback(() => {
     onUnblockDomain(domain);
diff --git a/app/javascript/flavours/glitch/components/gifv.tsx b/app/javascript/flavours/glitch/components/gifv.tsx
index 72914ba741..c606a29048 100644
--- a/app/javascript/flavours/glitch/components/gifv.tsx
+++ b/app/javascript/flavours/glitch/components/gifv.tsx
@@ -1,6 +1,6 @@
 import React, { useCallback, useState } from 'react';
 
-type Props = {
+interface Props {
   src: string;
   key: string;
   alt?: string;
@@ -8,7 +8,7 @@ type Props = {
   width: number;
   height: number;
   onClick?: () => void;
-};
+}
 
 export const GIFV: React.FC<Props> = ({
   src,
diff --git a/app/javascript/flavours/glitch/components/icon.tsx b/app/javascript/flavours/glitch/components/icon.tsx
index 4eb948dc76..6bd15da6ac 100644
--- a/app/javascript/flavours/glitch/components/icon.tsx
+++ b/app/javascript/flavours/glitch/components/icon.tsx
@@ -1,13 +1,14 @@
 import React from 'react';
+
 import classNames from 'classnames';
 
-type Props = {
+interface Props extends React.HTMLAttributes<HTMLImageElement> {
   id: string;
   className?: string;
   fixedWidth?: boolean;
   children?: never;
-  [key: string]: any;
-};
+}
+
 export const Icon: React.FC<Props> = ({
   id,
   className,
diff --git a/app/javascript/flavours/glitch/components/icon_button.tsx b/app/javascript/flavours/glitch/components/icon_button.tsx
index 80b20ae1b0..0b81288241 100644
--- a/app/javascript/flavours/glitch/components/icon_button.tsx
+++ b/app/javascript/flavours/glitch/components/icon_button.tsx
@@ -1,9 +1,11 @@
 import React from 'react';
+
 import classNames from 'classnames';
-import { Icon } from './icon';
+
 import { AnimatedNumber } from './animated_number';
+import { Icon } from './icon';
 
-type Props = {
+interface Props {
   className?: string;
   title: string;
   icon: string;
@@ -26,11 +28,11 @@ type Props = {
   obfuscateCount?: boolean;
   href?: string;
   ariaHidden: boolean;
-};
-type States = {
+}
+interface States {
   activate: boolean;
   deactivate: boolean;
-};
+}
 export class IconButton extends React.PureComponent<Props, States> {
   static defaultProps = {
     size: 18,
diff --git a/app/javascript/flavours/glitch/components/icon_with_badge.tsx b/app/javascript/flavours/glitch/components/icon_with_badge.tsx
index bf86814c03..e427b7172b 100644
--- a/app/javascript/flavours/glitch/components/icon_with_badge.tsx
+++ b/app/javascript/flavours/glitch/components/icon_with_badge.tsx
@@ -1,14 +1,15 @@
 import React from 'react';
+
 import { Icon } from './icon';
 
 const formatNumber = (num: number): number | string => (num > 40 ? '40+' : num);
 
-type Props = {
+interface Props {
   id: string;
   count: number;
   issueBadge: boolean;
   className: string;
-};
+}
 export const IconWithBadge: React.FC<Props> = ({
   id,
   count,
diff --git a/app/javascript/flavours/glitch/components/not_signed_in_indicator.tsx b/app/javascript/flavours/glitch/components/not_signed_in_indicator.tsx
index 53945d6a7a..7a71f6539d 100644
--- a/app/javascript/flavours/glitch/components/not_signed_in_indicator.tsx
+++ b/app/javascript/flavours/glitch/components/not_signed_in_indicator.tsx
@@ -1,4 +1,5 @@
 import React from 'react';
+
 import { FormattedMessage } from 'react-intl';
 
 export const NotSignedInIndicator: React.FC = () => (
diff --git a/app/javascript/flavours/glitch/components/radio_button.tsx b/app/javascript/flavours/glitch/components/radio_button.tsx
index 829f471747..67acb09f42 100644
--- a/app/javascript/flavours/glitch/components/radio_button.tsx
+++ b/app/javascript/flavours/glitch/components/radio_button.tsx
@@ -1,13 +1,14 @@
 import React from 'react';
+
 import classNames from 'classnames';
 
-type Props = {
+interface Props {
   value: string;
   checked: boolean;
   name: string;
   onChange: (event: React.ChangeEvent<HTMLInputElement>) => void;
   label: React.ReactNode;
-};
+}
 
 export const RadioButton: React.FC<Props> = ({
   name,
diff --git a/app/javascript/flavours/glitch/components/relative_timestamp.tsx b/app/javascript/flavours/glitch/components/relative_timestamp.tsx
index 65d9d27cb2..e0e0d4bb53 100644
--- a/app/javascript/flavours/glitch/components/relative_timestamp.tsx
+++ b/app/javascript/flavours/glitch/components/relative_timestamp.tsx
@@ -1,5 +1,7 @@
 import React from 'react';
-import { injectIntl, defineMessages, InjectedIntl } from 'react-intl';
+
+import type { InjectedIntl } from 'react-intl';
+import { injectIntl, defineMessages } from 'react-intl';
 
 const messages = defineMessages({
   today: { id: 'relative_time.today', defaultMessage: 'today' },
@@ -187,16 +189,16 @@ const timeRemainingString = (
   return relativeTime;
 };
 
-type Props = {
+interface Props {
   intl: InjectedIntl;
   timestamp: string;
   year: number;
   futureDate?: boolean;
   short?: boolean;
-};
-type States = {
+}
+interface States {
   now: number;
-};
+}
 class RelativeTimestamp extends React.Component<Props, States> {
   state = {
     now: this.props.intl.now(),
diff --git a/app/javascript/flavours/glitch/components/server_hero_image.tsx b/app/javascript/flavours/glitch/components/server_hero_image.tsx
index d10b8a620b..973d1d1b37 100644
--- a/app/javascript/flavours/glitch/components/server_hero_image.tsx
+++ b/app/javascript/flavours/glitch/components/server_hero_image.tsx
@@ -1,13 +1,15 @@
 import React, { useCallback, useState } from 'react';
-import { Blurhash } from './blurhash';
+
 import classNames from 'classnames';
 
-type Props = {
+import { Blurhash } from './blurhash';
+
+interface Props {
   src: string;
   srcSet?: string;
   blurhash?: string;
   className?: string;
-};
+}
 
 export const ServerHeroImage: React.FC<Props> = ({
   src,
diff --git a/app/javascript/flavours/glitch/features/account_timeline/index.jsx b/app/javascript/flavours/glitch/features/account_timeline/index.jsx
index 0a4bb94888..3739ce23ca 100644
--- a/app/javascript/flavours/glitch/features/account_timeline/index.jsx
+++ b/app/javascript/flavours/glitch/features/account_timeline/index.jsx
@@ -3,7 +3,7 @@ import { connect } from 'react-redux';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import PropTypes from 'prop-types';
 import { lookupAccount, fetchAccount } from 'flavours/glitch/actions/accounts';
-import { expandAccountFeaturedTimeline, expandAccountTimeline } from 'flavours/glitch/actions/timelines';
+import { expandAccountFeaturedTimeline, expandAccountTimeline } from '../../actions/timelines';
 import StatusList from '../../components/status_list';
 import LoadingIndicator from '../../components/loading_indicator';
 import Column from '../ui/components/column';
diff --git a/app/javascript/flavours/glitch/features/ui/components/columns_area.jsx b/app/javascript/flavours/glitch/features/ui/components/columns_area.jsx
index 458f48cde0..a466a3eb61 100644
--- a/app/javascript/flavours/glitch/features/ui/components/columns_area.jsx
+++ b/app/javascript/flavours/glitch/features/ui/components/columns_area.jsx
@@ -18,7 +18,7 @@ import {
   BookmarkedStatuses,
   ListTimeline,
   Directory,
-} from '../../ui/util/async-components';
+} from '../util/async-components';
 import ComposePanel from './compose_panel';
 import NavigationPanel from './navigation_panel';
 
diff --git a/app/javascript/flavours/glitch/features/ui/components/focal_point_modal.jsx b/app/javascript/flavours/glitch/features/ui/components/focal_point_modal.jsx
index 2b61bad70e..250e781cf2 100644
--- a/app/javascript/flavours/glitch/features/ui/components/focal_point_modal.jsx
+++ b/app/javascript/flavours/glitch/features/ui/components/focal_point_modal.jsx
@@ -4,7 +4,7 @@ import PropTypes from 'prop-types';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import { connect } from 'react-redux';
 import classNames from 'classnames';
-import { changeUploadCompose, uploadThumbnail, onChangeMediaDescription, onChangeMediaFocus } from 'flavours/glitch/actions/compose';
+import { changeUploadCompose, uploadThumbnail, onChangeMediaDescription, onChangeMediaFocus } from '../../../actions/compose';
 import Video, { getPointerPosition } from 'flavours/glitch/features/video';
 import { FormattedMessage, defineMessages, injectIntl } from 'react-intl';
 import { IconButton } from 'flavours/glitch/components/icon_button';
diff --git a/app/javascript/flavours/glitch/features/ui/components/upload_area.jsx b/app/javascript/flavours/glitch/features/ui/components/upload_area.jsx
index 0e07b67f87..5b4d0ce60f 100644
--- a/app/javascript/flavours/glitch/features/ui/components/upload_area.jsx
+++ b/app/javascript/flavours/glitch/features/ui/components/upload_area.jsx
@@ -1,6 +1,6 @@
 import React from 'react';
 import PropTypes from 'prop-types';
-import Motion from '../../ui/util/optional_motion';
+import Motion from '../util/optional_motion';
 import spring from 'react-motion/lib/spring';
 import { FormattedMessage } from 'react-intl';
 
diff --git a/app/javascript/flavours/glitch/features/ui/index.jsx b/app/javascript/flavours/glitch/features/ui/index.jsx
index 4fc2372b37..15b94273db 100644
--- a/app/javascript/flavours/glitch/features/ui/index.jsx
+++ b/app/javascript/flavours/glitch/features/ui/index.jsx
@@ -64,7 +64,7 @@ import Header from './components/header';
 
 // Dummy import, to make sure that <Status /> ends up in the application bundle.
 // Without this it ends up in ~8 very commonly used bundles.
-import '../../../glitch/components/status';
+import "../../components/status";
 
 const messages = defineMessages({
   beforeUnload: { id: 'ui.beforeunload', defaultMessage: 'Your draft will be lost if you leave Mastodon.' },
diff --git a/app/javascript/flavours/glitch/is_mobile.ts b/app/javascript/flavours/glitch/is_mobile.ts
index c91ba4d53d..d69beb2402 100644
--- a/app/javascript/flavours/glitch/is_mobile.ts
+++ b/app/javascript/flavours/glitch/is_mobile.ts
@@ -1,4 +1,5 @@
 import { supportsPassiveEvents } from 'detect-passive-events';
+
 import { forceSingleColumn } from 'flavours/glitch/initial_state';
 
 const LAYOUT_BREAKPOINT = 630;
diff --git a/app/javascript/flavours/glitch/packs/common.js b/app/javascript/flavours/glitch/packs/common.js
index 7dc34eba93..a750c3668d 100644
--- a/app/javascript/flavours/glitch/packs/common.js
+++ b/app/javascript/flavours/glitch/packs/common.js
@@ -1,9 +1,9 @@
 import 'packs/public-path';
 import { start } from '@rails/ujs';
 
-start();
-
 import 'flavours/glitch/styles/index.scss';
 
+start();
+
 //  This ensures that webpack compiles our images.
 require.context('../images', true);
diff --git a/app/javascript/flavours/glitch/polyfills/base_polyfills.ts b/app/javascript/flavours/glitch/polyfills/base_polyfills.ts
index 64211c11e9..e008d8f025 100644
--- a/app/javascript/flavours/glitch/polyfills/base_polyfills.ts
+++ b/app/javascript/flavours/glitch/polyfills/base_polyfills.ts
@@ -10,8 +10,13 @@ if (!HTMLCanvasElement.prototype.toBlob) {
   const BASE64_MARKER = ';base64,';
 
   Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
-    value(callback: BlobCallback, type = 'image/png', quality: any) {
-      const dataURL = this.toDataURL(type, quality);
+    value: function (
+      this: HTMLCanvasElement,
+      callback: BlobCallback,
+      type = 'image/png',
+      quality: unknown
+    ) {
+      const dataURL: string = this.toDataURL(type, quality);
       let data;
 
       if (dataURL.indexOf(BASE64_MARKER) >= 0) {
diff --git a/app/javascript/flavours/glitch/reducers/index.ts b/app/javascript/flavours/glitch/reducers/index.ts
index da2174fc2c..eaef569f09 100644
--- a/app/javascript/flavours/glitch/reducers/index.ts
+++ b/app/javascript/flavours/glitch/reducers/index.ts
@@ -1,48 +1,49 @@
-import { combineReducers } from 'redux-immutable';
-import dropdown_menu from './dropdown_menu';
-import timelines from './timelines';
-import meta from './meta';
-import alerts from './alerts';
 import { loadingBarReducer } from 'react-redux-loading-bar';
-import modal from './modal';
-import user_lists from './user_lists';
-import domain_lists from './domain_lists';
+import { combineReducers } from 'redux-immutable';
+
+import account_notes from './account_notes';
 import accounts from './accounts';
 import accounts_counters from './accounts_counters';
-import statuses from './statuses';
-import relationships from './relationships';
-import settings from './settings';
-import local_settings from './local_settings';
-import push_notifications from './push_notifications';
-import status_lists from './status_lists';
-import mutes from './mutes';
+import accounts_map from './accounts_map';
+import alerts from './alerts';
+import announcements from './announcements';
 import blocks from './blocks';
-import server from './server';
 import boosts from './boosts';
-import contexts from './contexts';
 import compose from './compose';
-import search from './search';
-import media_attachments from './media_attachments';
-import notifications from './notifications';
-import height_cache from './height_cache';
+import contexts from './contexts';
+import conversations from './conversations';
 import custom_emojis from './custom_emojis';
-import lists from './lists';
-import listEditor from './list_editor';
-import listAdder from './list_adder';
+import domain_lists from './domain_lists';
+import dropdown_menu from './dropdown_menu';
 import filters from './filters';
-import conversations from './conversations';
-import suggestions from './suggestions';
-import pinnedAccountsEditor from './pinned_accounts_editor';
-import polls from './polls';
-import trends from './trends';
-import announcements from './announcements';
+import followed_tags from './followed_tags';
+import height_cache from './height_cache';
+import history from './history';
+import listAdder from './list_adder';
+import listEditor from './list_editor';
+import lists from './lists';
+import local_settings from './local_settings';
 import markers from './markers';
-import account_notes from './account_notes';
+import media_attachments from './media_attachments';
+import meta from './meta';
+import modal from './modal';
+import mutes from './mutes';
+import notifications from './notifications';
 import picture_in_picture from './picture_in_picture';
-import accounts_map from './accounts_map';
-import history from './history';
+import pinnedAccountsEditor from './pinned_accounts_editor';
+import polls from './polls';
+import push_notifications from './push_notifications';
+import relationships from './relationships';
+import search from './search';
+import server from './server';
+import settings from './settings';
+import status_lists from './status_lists';
+import statuses from './statuses';
+import suggestions from './suggestions';
 import tags from './tags';
-import followed_tags from './followed_tags';
+import timelines from './timelines';
+import trends from './trends';
+import user_lists from './user_lists';
 
 const reducers = {
   announcements,
diff --git a/app/javascript/flavours/glitch/reducers/markers.js b/app/javascript/flavours/glitch/reducers/markers.js
index e3d1b1936b..3e8b1780a7 100644
--- a/app/javascript/flavours/glitch/reducers/markers.js
+++ b/app/javascript/flavours/glitch/reducers/markers.js
@@ -2,13 +2,13 @@ import {
   MARKERS_SUBMIT_SUCCESS,
 } from '../actions/markers';
 
+import { Map as ImmutableMap } from 'immutable';
+
 const initialState = ImmutableMap({
   home: '0',
   notifications: '0',
 });
 
-import { Map as ImmutableMap } from 'immutable';
-
 export default function markers(state = initialState, action) {
   switch(action.type) {
   case MARKERS_SUBMIT_SUCCESS:
diff --git a/app/javascript/flavours/glitch/store/index.ts b/app/javascript/flavours/glitch/store/index.ts
index f7e1be6b7b..1ef9cb8184 100644
--- a/app/javascript/flavours/glitch/store/index.ts
+++ b/app/javascript/flavours/glitch/store/index.ts
@@ -1,9 +1,13 @@
+import type { TypedUseSelectorHook } from 'react-redux';
+import { useDispatch, useSelector } from 'react-redux';
+
 import { configureStore } from '@reduxjs/toolkit';
+
 import { rootReducer } from '../reducers';
-import { loadingBarMiddleware } from './middlewares/loading_bar';
+
 import { errorsMiddleware } from './middlewares/errors';
+import { loadingBarMiddleware } from './middlewares/loading_bar';
 import { soundsMiddleware } from './middlewares/sounds';
-import { TypedUseSelectorHook, useDispatch, useSelector } from 'react-redux';
 
 export const store = configureStore({
   reducer: rootReducer,
diff --git a/app/javascript/flavours/glitch/store/middlewares/errors.ts b/app/javascript/flavours/glitch/store/middlewares/errors.ts
index 5dec423af7..2697f80f18 100644
--- a/app/javascript/flavours/glitch/store/middlewares/errors.ts
+++ b/app/javascript/flavours/glitch/store/middlewares/errors.ts
@@ -1,17 +1,19 @@
-import { Middleware } from 'redux';
+import type { AnyAction, Middleware } from 'redux';
+
 import { showAlertForError } from 'flavours/glitch/actions/alerts';
-import { RootState } from '..';
+
+import type { RootState } from '..';
 
 const defaultFailSuffix = 'FAIL';
 
 export const errorsMiddleware: Middleware<Record<string, never>, RootState> =
   ({ dispatch }) =>
   (next) =>
-  (action) => {
+  (action: AnyAction & { skipAlert?: boolean; skipNotFound?: boolean }) => {
     if (action.type && !action.skipAlert) {
       const isFail = new RegExp(`${defaultFailSuffix}$`, 'g');
 
-      if (action.type.match(isFail)) {
+      if (typeof action.type === 'string' && action.type.match(isFail)) {
         dispatch(showAlertForError(action.error, action.skipNotFound));
       }
     }
diff --git a/app/javascript/flavours/glitch/store/middlewares/loading_bar.ts b/app/javascript/flavours/glitch/store/middlewares/loading_bar.ts
index 183c0cf9d6..0f997fd349 100644
--- a/app/javascript/flavours/glitch/store/middlewares/loading_bar.ts
+++ b/app/javascript/flavours/glitch/store/middlewares/loading_bar.ts
@@ -1,6 +1,7 @@
 import { showLoading, hideLoading } from 'react-redux-loading-bar';
-import { Middleware } from 'redux';
-import { RootState } from '..';
+import type { AnyAction, Middleware } from 'redux';
+
+import type { RootState } from '..';
 
 interface Config {
   promiseTypeSuffixes?: string[];
@@ -19,7 +20,7 @@ export const loadingBarMiddleware = (
 
   return ({ dispatch }) =>
     (next) =>
-    (action) => {
+    (action: AnyAction) => {
       if (action.type && !action.skipLoading) {
         const [PENDING, FULFILLED, REJECTED] = promiseTypeSuffixes;
 
@@ -27,13 +28,15 @@ export const loadingBarMiddleware = (
         const isFulfilled = new RegExp(`${FULFILLED}$`, 'g');
         const isRejected = new RegExp(`${REJECTED}$`, 'g');
 
-        if (action.type.match(isPending)) {
-          dispatch(showLoading());
-        } else if (
-          action.type.match(isFulfilled) ||
-          action.type.match(isRejected)
-        ) {
-          dispatch(hideLoading());
+        if (typeof action.type === 'string') {
+          if (action.type.match(isPending)) {
+            dispatch(showLoading());
+          } else if (
+            action.type.match(isFulfilled) ||
+            action.type.match(isRejected)
+          ) {
+            dispatch(hideLoading());
+          }
         }
       }
 
diff --git a/app/javascript/flavours/glitch/store/middlewares/sounds.ts b/app/javascript/flavours/glitch/store/middlewares/sounds.ts
index e7c87df7ec..6005d3649e 100644
--- a/app/javascript/flavours/glitch/store/middlewares/sounds.ts
+++ b/app/javascript/flavours/glitch/store/middlewares/sounds.ts
@@ -1,5 +1,6 @@
-import { Middleware, AnyAction } from 'redux';
-import { RootState } from '..';
+import type { Middleware, AnyAction } from 'redux';
+
+import type { RootState } from '..';
 
 interface AudioSource {
   src: string;
@@ -27,7 +28,7 @@ const play = (audio: HTMLAudioElement) => {
     }
   }
 
-  audio.play();
+  void audio.play();
 };
 
 export const soundsMiddleware = (): Middleware<
@@ -47,13 +48,15 @@ export const soundsMiddleware = (): Middleware<
     ]),
   };
 
-  return () => (next) => (action: AnyAction) => {
-    const sound = action?.meta?.sound;
+  return () =>
+    (next) =>
+    (action: AnyAction & { meta?: { sound?: string } }) => {
+      const sound = action?.meta?.sound;
 
-    if (sound && soundCache[sound]) {
-      play(soundCache[sound]);
-    }
+      if (sound && soundCache[sound]) {
+        play(soundCache[sound]);
+      }
 
-    return next(action);
-  };
+      return next(action);
+    };
 };
diff --git a/app/javascript/flavours/glitch/types/resources.ts b/app/javascript/flavours/glitch/types/resources.ts
index 0906504150..63ec2993bb 100644
--- a/app/javascript/flavours/glitch/types/resources.ts
+++ b/app/javascript/flavours/glitch/types/resources.ts
@@ -12,7 +12,7 @@ type AccountField = Record<{
   verified_at: string | null;
 }>;
 
-type AccountApiResponseValues = {
+interface AccountApiResponseValues {
   acct: string;
   avatar: string;
   avatar_static: string;
@@ -34,7 +34,7 @@ type AccountApiResponseValues = {
   statuses_count: number;
   url: string;
   username: string;
-};
+}
 
 type NormalizedAccountField = Record<{
   name_emojified: string;
@@ -42,12 +42,12 @@ type NormalizedAccountField = Record<{
   value_plain: string;
 }>;
 
-type NormalizedAccountValues = {
+interface NormalizedAccountValues {
   display_name_html: string;
   fields: NormalizedAccountField[];
   note_emojified: string;
   note_plain: string;
-};
+}
 
 export type Account = Record<
   AccountApiResponseValues & NormalizedAccountValues
diff --git a/app/javascript/flavours/glitch/utils/resize_image.js b/app/javascript/flavours/glitch/utils/resize_image.js
index fb8c3c11e6..e3d4e6a354 100644
--- a/app/javascript/flavours/glitch/utils/resize_image.js
+++ b/app/javascript/flavours/glitch/utils/resize_image.js
@@ -170,7 +170,7 @@ const resizeImage = (img, type = 'image/png') => new Promise((resolve, reject) =
     .catch(reject);
 });
 
-export default inputFile => new Promise((resolve) => {
+const resizeFile = (inputFile) => new Promise((resolve) => {
   if (!inputFile.type.match(/image.*/) || inputFile.type === 'image/gif') {
     resolve(inputFile);
     return;
@@ -187,3 +187,5 @@ export default inputFile => new Promise((resolve) => {
       .catch(() => resolve(inputFile));
   }).catch(() => resolve(inputFile));
 });
+
+export default resizeFile;
diff --git a/app/javascript/flavours/glitch/uuid.ts b/app/javascript/flavours/glitch/uuid.ts
index 6cadbd6bb0..0b4d55beb6 100644
--- a/app/javascript/flavours/glitch/uuid.ts
+++ b/app/javascript/flavours/glitch/uuid.ts
@@ -1,8 +1,9 @@
 export function uuid(a?: string): string {
   return a
     ? (
-        (a as any as number) ^
-        ((Math.random() * 16) >> ((a as any as number) / 4))
+        (a as unknown as number) ^
+        ((Math.random() * 16) >> ((a as unknown as number) / 4))
       ).toString(16)
-    : ('' + 1e7 + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, uuid);
+    : // eslint-disable-next-line @typescript-eslint/restrict-plus-operands
+      ('' + 1e7 + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, uuid);
 }
diff --git a/tsconfig.json b/tsconfig.json
index 022ab1f71e..d8f425f168 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -12,6 +12,8 @@
     "baseUrl": "./",
     "paths": {
       "locales": ["app/javascript/locales"],
+      "styles/*": ["app/javascript/styles/*"],
+      "packs/public-path": ["app/javascript/packs/public-path"],
       "flavours/glitch": ["app/javascript/flavours/glitch"],
       "flavours/glitch/*": ["app/javascript/flavours/glitch/*"],
       "mastodon": ["app/javascript/mastodon"],