Please do not ignore the investments required for each cam:
Cam programming interfaces are not available mostly for 3rd parties and are always proprietary. This means each cam type requires a custom integration. LapTimer is prepared to register additional cam types and add this integration, but it is still around 8 days of work (i.e. 8 person days investment) to add a new one. So either I get a big list of votes / upvotes for a specific cam type from LapTimer users, or someone donates the money

And again, the cam needs a public interface description / support by the manufacturer.
You can use an arbitrary action cam with LapTimer Petrolhead: start the cam before entering the track and stop it manually when returning. Once back home, add the video to laps recorded and overlay them. Please check Video Documentation on
www.gps-laptimer.de/documentation for the details.
- Harry