Focus on speedup and not hanging on large audio files.

src/index.ts

@@ -4,7 +4,7 @@ import { ensureIcons, ICONS_DIR } from "../scripts/generate-icons.ts";
 import { injectPrecacheManifest } from "./pwa/precache.ts";
 import { auth } from "./server/auth.ts";
 import { AUTH_ENABLED } from "./server/flags.ts";
-import { transcribe } from "./server/transcribe.ts";
+import { MAX_UPLOAD_BYTES, transcribe } from "./server/transcribe.ts";
 import { liveWebSocket } from "./server/live.ts";
 
 const ROOT = join(import.meta.dir, "..");
@@ -81,8 +81,17 @@ async function handleApiRequest(request: Request, server: any): Promise<Response
     case "GET /api/auth/me":
       return auth.me(request);
     case "GET /api/transcribe/status":
+      // The first probe spawns the sidecar and waits for faster-whisper to
+      // import (READY_TIMEOUT_MS = 60 s) — give it headroom over Bun's 10 s
+      // default idle timeout.
+      server.timeout(request, 90);
       return transcribe.status(request);
     case "POST /api/transcribe":
+      // Long-running ndjson stream (D-021): quiet stretches (model
+      // load/download, slow decode windows) exceed Bun's 10 s idle timeout,
+      // which would reset the connection mid-transcription. Heartbeat lines
+      // (transcribe.ts) cover proxies; disable Bun's timer entirely here.
+      server.timeout(request, 0);
       return transcribe.post(request);
     case "GET /api/transcribe/live": {
       const user = auth.getSessionUser(request);
@@ -261,6 +270,9 @@ async function developmentServeOptions(): Promise<ServeOptions> {
 
 const options = IS_PRODUCTION ? await productionServeOptions() : await developmentServeOptions();
 options.port = process.env.PORT || 3000;
+// Bun's default cap is 128 MB, which would 4xx a /api/transcribe upload of
+// more than ~35 minutes of raw PCM before the route's own limit applies.
+options.maxRequestBodySize = MAX_UPLOAD_BYTES;
 options.websocket = liveWebSocket as any;
 
 const server = serve(options);