diff --git a/.editorconfig b/.editorconfig
index acb0460..0b0b41a 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -10,6 +10,10 @@ insert_final_newline = true
 indent_style = space
 indent_size = 2
 
+[**.ts]
+indent_style = space
+indent_size = 2
+
 [**.json]
 indent_style = space
 indent_size = 2
@@ -50,4 +54,4 @@ trim_trailing_whitespace = ignore
 charset = ignore
 
 [{test/fixtures,deps,tools/eslint,tools/gyp,tools/icu,tools/msvs}/**]
-insert_final_newline = false
\ No newline at end of file
+insert_final_newline = false
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 44d728f..152d5fb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -5,6 +5,10 @@ on:
     branches-ignore:
       - master
       - develop
+  pull_request:
+    branches-ignore:
+      - master
+      - develop
 jobs:
   build_on_linux:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8bda4ca..e934f81 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -5,6 +5,10 @@ on:
     branches:
       - master
       - develop
+  pull_request:
+    branches:
+      - master
+
 jobs:
   build_on_linux:
     runs-on: ubuntu-latest
@@ -16,7 +20,7 @@ jobs:
       - uses: actions/checkout@master
       - uses: actions/setup-node@master
         with:
-          node-version: 16
+          node-version: 19
       - run: npm install
       - run: npm run build
       - uses: actions/upload-artifact@master
@@ -25,12 +29,12 @@ jobs:
           path: dist/
 
   build_on_mac:
-    runs-on: macOS-latest
+    runs-on: macos-latest
     steps:
       - uses: actions/checkout@master
       - uses: actions/setup-node@master
         with:
-          node-version: 16
+          node-version: 19
       - run: npm install
       - run: npm run build
       - uses: actions/upload-artifact@master
@@ -44,7 +48,7 @@ jobs:
       - uses: actions/checkout@master
       - uses: actions/setup-node@master
         with:
-          node-version: 16
+          node-version: 19
       - run: npm install
       - run: npm run build
       - uses: actions/upload-artifact@master
diff --git a/src/constants/flags.ts b/src/constants/flags.ts
index 64c36ae..7968aff 100644
--- a/src/constants/flags.ts
+++ b/src/constants/flags.ts
@@ -1,4 +1,4 @@
-export const flags: { [key: string]: { flag: string; value?: any }[] } = {
+export const flags: { [key: string]: { flag: string; value?: string }[] } = {
   gpuRasterization: [{ flag: "enable-gpu-rasterization", value: undefined }],
   disableHardwareMediaKeys: [{ flag: "disable-features", value: "HardwareMediaKeyHandling" }],
 };
diff --git a/src/preload.ts b/src/preload.ts
index cc6a682..a3d7d31 100644
--- a/src/preload.ts
+++ b/src/preload.ts
@@ -14,7 +14,7 @@ import { setTitle } from "./scripts/window-functions";
 const notificationPath = `${app.getPath("userData")}/notification.jpg`;
 const appName = "Tidal Hifi";
 let currentSong = "";
-let player: any;
+let player: Player;
 let currentPlayStatus = statuses.paused;
 
 const elements = {
diff --git a/src/scripts/express.ts b/src/scripts/express.ts
index 6097a6f..68c9fd8 100644
--- a/src/scripts/express.ts
+++ b/src/scripts/express.ts
@@ -18,7 +18,7 @@ export const startExpress = (mainWindow: BrowserWindow) => {
    * @param {*} res
    * @param {*} action
    */
-  function handleGlobalEvent(res: Response, action: any) {
+  function handleGlobalEvent(res: Response, action: string) {
     mainWindow.webContents.send("globalEvent", action);
     res.sendStatus(200);
   }
diff --git a/src/scripts/settings.ts b/src/scripts/settings.ts
index b20b6ae..9fa27b4 100644
--- a/src/scripts/settings.ts
+++ b/src/scripts/settings.ts
@@ -67,7 +67,7 @@ export const createSettingsWindow = function () {
     },
   });
 
-  settingsWindow.on("close", (event: any) => {
+  settingsWindow.on("close", (event: Event) => {
     if (settingsWindow != null) {
       event.preventDefault();
       settingsWindow.hide();
diff --git a/src/types/mpris-service.d.ts b/src/types/mpris-service.d.ts
new file mode 100644
index 0000000..40bf530
--- /dev/null
+++ b/src/types/mpris-service.d.ts
@@ -0,0 +1,60 @@
+declare class InitOptions {
+  name: string;
+  identity: string;
+  supportedUriSchemes: string[];
+  supportedMimeTypes: string[];
+  supportedInterfaces: string[];
+  desktopEntry: string;
+}
+
+declare class Player {
+  metadata: {
+    "xesam:title": string;
+    "xesam:artist": string[];
+    "xesam:album": string;
+    "mpris:artUrl": string;
+    "mpris:length": number;
+    "mpris:trackid": string;
+    // other options
+    [key: string]: string | number | string[] | object;
+  };
+  playbackStatus: string;
+  identity: string;
+  fullscreen: boolean;
+  supportedUriSchemes: string[];
+  supportedMimeTypes: string[];
+  canQuit: boolean;
+  canRaise: boolean;
+  canSetFullscreen: boolean;
+  hasTrackList: boolean;
+  desktopEntry: string;
+  loopStatus: string;
+  shuffle: boolean;
+  volume: number;
+  canControl: boolean;
+  canPause: boolean;
+  canPlay: boolean;
+  canSeek: boolean;
+  canGoNext: boolean;
+  canGoPrevious: boolean;
+  rate: number;
+  minimumRate: number;
+  maximumRate: number;
+  playlists: string[];
+  activePlaylist: string;
+
+  constructor(opts: { name: string; supportedInterfaces?: string[] });
+  constructor(opts: InitOptions);
+
+  getPosition(): number;
+  seeked(): void;
+  getTrackIndex(trackId: number): number;
+  getTrack(trackId: number): string;
+  addTrack(track: object): void;
+  removeTrack(trackId: number): number;
+  getPlaylistIndex(playlistId: number): number;
+  setPlaylists(playlists: object): void;
+  setActivePlaylist(playlistId: number): void;
+
+  on(event: string | symbol, listener: (...args: object[]) => void): this;
+}
diff --git a/tsconfig.json b/tsconfig.json
index 2343e42..25baf7d 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,5 +1,6 @@
 {
   "compilerOptions": {
+    "typeRoots": ["src/types"],
     "module": "commonjs",
     "target": "ES6",
     "noImplicitAny": true,