From 8c3ca82a033803b3c95b81810f3549acc8516675 Mon Sep 17 00:00:00 2001
From: Yuzu <yuzu@kirameki.cafe>
Date: Tue, 16 Jun 2026 01:03:02 +0700
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20feat:=20Single=20instance=20applica?=
 =?UTF-8?q?tion=20behavior?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/index.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/main/index.ts b/src/main/index.ts
index 446f8ee..094aa60 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -70,6 +70,12 @@ let mainWindow: BrowserWindow | null = null
 let tray: Tray | null = null
 let quitting = false
 
+const gotSingleInstanceLock = app.requestSingleInstanceLock()
+
+if (!gotSingleInstanceLock) {
+  app.quit()
+}
+
 function shouldStartHidden(): boolean {
   if (process.argv.includes('--hidden')) return true
   if (process.platform === 'darwin') {
@@ -179,6 +185,10 @@ function updateTrayMenu(status: RelayStatus): void {
   tray.setContextMenu(menu)
 }
 
+app.on('second-instance', () => {
+  createWindow()
+})
+
 app.whenReady().then(() => {
   electronApp.setAppUserModelId('cafe.kirameki.discord-rpc-relay')