Does anyone know if there is a proper software to achieve this?
The reason I want to do this is to record me while doing Sport and look for bad posture etc… and always starting a new video and delete it afterwards etc is pretty annoying.
I also have an iPhone and iPad if such a software is available for iOS.
But right now I have not found a good solution.
I wanted to try running OBS studios in a docker container (for automatization) and view the stream from my phone, but this does not seem like a good solution but like reinventing the wheel.

Any ideas are very welcome.