just use window.location

frontend/src/components/LinkList.tsx

···
 
 	const handleCopy = (shortCode: string) => {
 		// Use import.meta.env.VITE_BASE_URL or fall back to window.location.origin
-		const baseUrl = import.meta.env.VITE_API_URL || window.location.origin
+		const baseUrl = window.location.origin
 		navigator.clipboard.writeText(`${baseUrl}/${shortCode}`)
 		toast({
 		  description: "Link copied to clipboard",

frontend/vite.config.ts

···
 
 export default defineConfig(() => ({
 	plugins: [react(), tailwindcss()],
-	server: {
+	/*server: {
 		proxy: {
 			'/api': {
 				target: process.env.VITE_API_URL || 'http://localhost:8080',
 				changeOrigin: true,
 			},
 		},
-	},
+	},*/
 	resolve: {
 		alias: {
 			"@": path.resolve(__dirname, "./src"),