Lots of RTSP cameras available - which would do exactly what you want and leaves you fairly open to whatever software you choose to implement on the server to s

Lots of RTSP cameras available - which would do exactly what you want and leaves you fairly open to whatever software you choose to implement on the server to share the feed. I use lots of the Ubiquiti Cameras - I’ve had lots of success using them without the UniFi Protect controller app purely as RTSP devices.