It doesn't look like it: on the page you link to, it says "Note: UniFi Protect is required to run this product". UniFi Protect is Ubiquiti's own software. That's a shame, as this seems like a neat camera otherwise.

I have one, works fine using RTSP feed.

Excuse me, it does require a Protect server (UDMP or UNVR). I assumed you had some Ubiquti gear.

Let us know if you get it working @cstout

I have a G3 Flex and no other Ubiquiti hardware and was able to configure it to work with SS just using the camera's IP address

pinkoos: Does the audio stream work with the RTSP feed or just video?

@pinkoos bad news. UI has locked this little camera down. Not only have they killed off their scalable and self-installable UniFi Video system, but they've made it so this camera is only configurable through a Protect controller (not even just their Protect app). You need to have a working Protect controller before you can do anything with this camera. It's a shame too, because for $29 this camera appears well-built. I don't have a Protect controller, but I might be able to emulate one long enough to get the camera set up. Others have reported that once the camera is joined to a network it doesn't technically need to talk to the controller anymore. ¯\_(ツ)_/¯

There's a project out there called unifi-protect-x86 and that worked well enough to get my Instant activated and on wifi. I'll need to dive deeper, but this camera has a buttery smooth 30fps feed that is only 1fps in the web browser. RTSP can be enabled for it, but all I've seen so far as success with it is that the RTSP feed that's generated is fed through the controller instead of direct from the camera. I hope there's a way to grab it straight from the camera. Not sure why they would want to man in the middle this stream unless it's a proprietary stream format that's being translated to RTSP through the controller.