BOFH666

Esp32Cam with esphome running a webserver, add frigate in the mix and you can have dozens of cameras for just a few bucks.

Completely open source (apart from the espressif wifi radio stack, but who’s counting) and low cost.

Yes, quality of the camera will never compete with commercial stuff, but this is way more fun. Add as much cameras as your frigate instance allows…

I own an Ender and installed alternative firmware (mriscoc professional firmware) which gives me a feature to probe the bed on multiple points and store this mesh in memory.

Now the firmware ‘knows’ about all the holes and hills on the bed and compensates for it.

You want to look for terms like bed mesh leveling, when you’ve got a probe attached, this technique can really help.