Update app.ts

app.ts

@@ -25,7 +25,7 @@ const app = new Elysia()
              if (err) yield err
              const out = await new Response(proc.stdout).text();
              if (out) yield out
-             yield `\n\n\`process exited with code ${proc.exitCode}\``
+             yield `\n\n\`process exited with code ${proc.signalCode}\``
 	})
 	.ws('/realtime', {
 		message(ws, message) {