Here’s a production-ready Python script that watches a folder on myservercom and makes any new MKV file work via remux to MP4.

: Automatically registers the correct MIME types (e.g., video/x-matroska ) on the server side so that client devices (like iPads or Android tablets) recognize and play the MKV file immediately rather than trying to download it. How to Make it "Work"

No streaming, no seeking, full file transfer required.