diff --git a/src/index.ts b/src/index.ts
index 05d0b95256..00494527cb 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -71,9 +71,15 @@ unhandled({
 let mainWindow: Electron.BrowserWindow | null;
 autoUpdater.autoDownload = false;
 
-const gotTheLock = app.requestSingleInstanceLock();
-if (!gotTheLock) {
-  app.exit();
+// Allow multi instance
+const ALLOW_MULTI_INSTANCE = process.env.ALLOW_MULTI_INSTANCE;
+if (ALLOW_MULTI_INSTANCE) {
+  console.log('Starting with ALLOW_MULTI_INSTANCE');
+} else {
+  const gotTheLock = app.requestSingleInstanceLock();
+  if (!gotTheLock) {
+    app.exit();
+  }
 }
 
 protocol.registerSchemesAsPrivileged([
@@ -634,6 +640,21 @@ const getDefaultLocale = async (locale: string) =>
   Object.keys(await languageResources()).includes(locale) ? locale : null;
 
 app.whenReady().then(async () => {
+  // Use custom profile
+  const CUSTOM_ACCOUNT_PROFILE = process.env.CUSTOM_ACCOUNT_PROFILE;
+  if (CUSTOM_ACCOUNT_PROFILE) {
+    const baseFolder = path.join(
+      app.getPath('userData'),
+      'Custom Account Profiles',
+    );
+    app.setPath('userData', path.join(baseFolder, CUSTOM_ACCOUNT_PROFILE));
+  }
+  const profileName = CUSTOM_ACCOUNT_PROFILE ?? 'default';
+  const appPath = app.getPath('userData');
+  console.log(
+    "Using Account Profile: '" + profileName + "' at '" + appPath + "'",
+  );
+
   if (!config.get('options.language')) {
     const locale = await getDefaultLocale(app.getLocale());
     if (locale) {