OBS Webcam-Only Replay Script

In my current OBS Studio scene I combine a live webcam feed (Video Capture Device) with a browser source overlay. I need an automated way to trigger replays that record only the webcam feed—leaving the browser layer out—then save each replay as an MP4 in a dedicated folder for later use... (Budget: ₹600 - ₹1500 INR, Jobs: C++ Programming, Lua, PHP, Python, Scripting, Software Architecture, Video Editing, Video Production)