diff --git a/.gitignore b/.gitignore
index 8b91ab0..18caa91 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,8 @@
 node_modules/
 .next/
 .env
+.env.prod
+.env.local
 *.log
 storage/
 worker/worker.pid
diff --git a/bin/ffmpeg.exe b/bin/ffmpeg.exe
new file mode 100644
index 0000000..5dceefd
Binary files /dev/null and b/bin/ffmpeg.exe differ
diff --git a/bin/ffprobe b/bin/ffprobe
new file mode 100644
index 0000000..571e273
Binary files /dev/null and b/bin/ffprobe differ
diff --git a/bin/ffprobe.exe b/bin/ffprobe.exe
new file mode 100644
index 0000000..d5a5567
Binary files /dev/null and b/bin/ffprobe.exe differ
diff --git a/src/lib/ytdlp.ts b/src/lib/ytdlp.ts
index 1689d1e..57c38bd 100644
--- a/src/lib/ytdlp.ts
+++ b/src/lib/ytdlp.ts
@@ -55,7 +55,9 @@ export function buildYtdlpArgs(params: YtdlpParams): string[] {
 
   const args: string[] = ['--no-playlist', '-o', outputTemplate]
 
-  const ffmpegBin = path.join(config.BIN_DIR, 'ffmpeg')
+  // bin/ffmpeg is a Linux ELF binary bundled for o2switch prod deploy; it can't
+  // run on Windows, so local dev instead looks for a bin/ffmpeg.exe.
+  const ffmpegBin = path.join(config.BIN_DIR, process.platform === 'win32' ? 'ffmpeg.exe' : 'ffmpeg')
   if (existsSync(ffmpegBin)) {
     args.push('--ffmpeg-location', ffmpegBin)
   }