RunCam Split Mini in px4?

is it possible to use the RunCam Split Mini in px4?
How do I make her serial connection on px4?
it can be shared with the miniosd since runcan would practically not receive external commands
How do other open-source controllers already support RunCam not add this support to px4?

Please don’t double post.
Duplicate of Is it possible to use the RunCam Split Mini in px4?