From 03b352bc157a2f1584d56543ff010ae729f07c70 Mon Sep 17 00:00:00 2001
From: HorizonCode <horizoncode88@gmail.com>
Date: Tue, 23 Jan 2024 13:28:35 +0100
Subject: [PATCH] allow only a single instance

---
 main.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/main.js b/main.js
index d05f977..10cd355 100644
--- a/main.js
+++ b/main.js
@@ -537,6 +537,12 @@ function registerIPCPipes() {
 }
 
 function createWindow() {
+  const gotTheLock = app.requestSingleInstanceLock();
+  if (!gotTheLock) {
+    app.quit();
+    return;
+  }
+
   setupTitlebar();
 
   // Create the browser window.