diff --git a/videobundler/main.py b/videobundler/main.py
index 173193a..339734c 100644
--- a/videobundler/main.py
+++ b/videobundler/main.py
@@ -11,51 +11,67 @@ app = web.Application()
 app.router._frozen = False
 
 def get_random_string(length):
-	# choose from all lowercase letter
-	letters = string.ascii_lowercase
-	result_str = "".join(random.choice(letters) for i in range(length))
-	return result_str
+    # choose from all lowercase letter
+    letters = string.ascii_lowercase
+    result_str = "".join(random.choice(letters) for i in range(length))
+    return result_str
+
+async def run_command(cmd):
+    # Create subprocess
+    process = await asyncio.create_subprocess_shell(
+        cmd,
+        stdout=asyncio.subprocess.PIPE,
+    )
+    # Wait for the subprocess to finish
+    stdout, stderr = await process.communicate()
+    # Check for errors
+    if process.returncode!= 0:
+    # Log or handle the error
+        print(f"Command '{args}' failed with return code {process.returncode}")
+        return None
+    # Decode stdout and return
+    return stdout
 
 async def merge(request):
-	# register params
-	job_id = request.rel_url.query["id"]
-	video_id: str = request.rel_url.query["id"]
-	audio_itag: str = request.rel_url.query["audio_itag"]
-	video_itag: str = request.rel_url.query["video_itag"]
-	# validate
-	if " " in video_id or len(video_id) > 11:
-		print(f"Video {video_id} flagged as invalid, dropping request")
-		return
-	if not audio_itag.isdigit():
-		print(f"Audio itag {audio_itag} flagged as invalid, dropping request")
-		return
-	if not video_itag.isdigit():
-		print(f"Video itag {video_itag} flagged as invalid, dropping request")
-		return
-	if os.path.isfile(f"{job_id}.mp4"):
-		return web.FileResponse(
-			path=f"{job_id}.mp4"
-		)
-	cmdline = f"ffmpeg -i \"https://eu-proxy.poketube.fun/latest_version?id={video_id}&itag={audio_itag}&local=true\" -i \"https://eu-proxy.poketube.fun/latest_version?id={video_id}&itag={video_itag}&local=true\" -c copy -f mp4 -movflags frag_keyframe+empty_moov {video_id}.mp4"
-	proc_ffmpeg = await asyncio.create_subprocess_shell(
-		cmdline,
-		stdout=asyncio.subprocess.PIPE,
-		stderr=asyncio.subprocess.PIPE
-	)
-	print(f"ffmpeg -i \"https://eu-proxy.poketube.fun/latest_version?id={video_id}&itag={audio_itag}&local=true\" -i \"https://eu-proxy.poketube.fun/latest_version?id={video_id}&itag={video_itag}&local=true\" -c copy -f mp4 -movflags frag_keyframe+empty_moov -")
-	stdout, stderr = await proc_ffmpeg.communicate()
-	response = FileResponse(f"{video_id}.mp4")
-	return response
+        # register params
+    job_id = request.rel_url.query["id"]
+    video_id: str = request.rel_url.query["id"]
+    audio_itag: str = request.rel_url.query["audio_itag"]
+    video_itag: str = request.rel_url.query["video_itag"]
+    # validate
+    if " " in video_id or len(video_id) > 11:
+        print(f"Video {video_id} flagged as invalid, dropping request")
+        return
+    if not audio_itag.isdigit():
+        print(f"Audio itag {audio_itag} flagged as invalid, dropping request")
+        return
+    if not video_itag.isdigit():
+        print(f"Video itag {video_itag} flagged as invalid, dropping request")
+        return
+    if os.path.isfile(f"{job_id}.mp4"):
+        return web.FileResponse(
+                path=f"{job_id}.mp4"
+        )
+    cmdline = f"ffmpeg -i \"https://eu-proxy.poketube.fun/latest_version?id={video_id}&itag={audio_itag}&local=true\" -i \"https://eu-proxy.poketube.fun/latest_version?id={video_id}&itag={video_itag}&local=true\" -c copy -f mp4 -movflags frag_keyframe+empty_moov -"
+    #proc_ffmpeg = await asyncio.create_subprocess_shell(
+    #       cmdline,
+    #       stdout=asyncio.subprocess.PIPE
+    #)
+    #print(f"ffmpeg -i \"https://eu-proxy.poketube.fun/latest_version?id={video_id}&itag={audio_itag}&local=true\" -i \"https://eu-proxy.poketube.fun/latest_version?id={video_id}&itag={video_itag}&local=true\" -c copy -f mp4 -movflags frag_keyframe+empty_moov -")
+    #stdout, _ = await proc_ffmpeg.communicate()
+    iwannakillmyself = await run_command(cmdline)
+    response = Response(body=iwannakillmyself, content_type="video/mp4", headers="")
+    return response
 
 async def ping(request):
-	return web.Response(body='{"success": true}', content_type="application/json")
+    return web.Response(body='{"success": true}', content_type="application/json")
 
 async def init_app():
-	app.router.add_get("/{id:.+}", merge)
-	app.router.add_get("/", ping)
-	return app
+    app.router.add_get("/{id:.+}", merge)
+    app.router.add_get("/", ping)
+    return app
 
 if __name__ == '__main__':
-	loop = asyncio.get_event_loop()
-	app = loop.run_until_complete(init_app())
-	web.run_app(app, port=3030)
\ No newline at end of file
+    loop = asyncio.get_event_loop()
+    app = loop.run_until_complete(init_app())
+    web.run_app(app, port=3030)