WxFisch

I misunderstood what you were saying, I wasn’t sure if protect required a UniFi hardware console or could be self hosted like the network application can be. It looks like it does require at least a Cloudkey gen 2 (or the plus which is what they currently sell) or one of their integrated consoles like a UDM.

It’s supported natively in the UI to configure: https://help.ui.com/hc/en-us/articles/26301104828439-Third-Party-Cameras-in-UniFi-Protect

It was added in EA in mid September and should be GA now as far as I know.

I use UniFi Protect and record to my UDM, though you should be able to install it all on your own hardware if you’d prefer. Their cameras are pretty decent but a bit pricy in a lot of cases. Though they do support 3rd party cameras now.

I’ve also heard a lot of good things about frigate, but I’ve not really looked into it since I already have UniFi gear.

Something like LPS/TENS would fit your needs exactly, but it stopped being supported in 2021. It was essentially Tails but was built to be run from a wide verity of sources (we used to network boot onto PCs that had no hard drives at all, but had local network share access).