Archery

I'm looking for suggestions for video analysis software for training.

Preferably something that

• can handle multiple camera streams at once.
• can run without internet access or a subscription. (it's for a clubhouse and I don't want to send video of the kids, or other training data, online).
• doesn't require a PhD in robotics to set up.

The solution I imagine is two or more cameras filming an archer. The software shall record the training, and allow the archer to playback multiple synchronized streams simultaneously while adding tracking points and displaying data like angles, distance and speed.

I can find several different solutions. But before putting all our eggs in a single basket with the FOSS solution kinovea or utilus fairplay, I want to hear what others have tried.

Edit: IDK first interaction this post got was getting down voted, I guess that it's relevance to archery was unclear, so I edited the title to mitigate this.