PiWebcam VS camera.ui

I'm assuming, given where you're asking, that it would be fine to suggest a DIY option?

If so: on my desk right now is a Raspberry Pi Zero with a NoIR camera, configured so that when it gets power a small Python script starts up as a web server and begins hosting the camera output.

Here's the code for both the server and a webpage to auto-refresh the camera view. MIT license, so have fun:

https://github.com/BenWheatley/PiWebcam

CameraUI (https://github.com/seydx/camera.ui) Opensource NVR software for cameras, built on modern progressive web app (PWA) architecture. Beautiful software, unfortunately the original dev has gone AWOL but the latest release is stable and easy to use for recording and viewing cameras.

For my apartment, I run rtsp-simple-server[1] on my home server and use Raspberry Pis with generic USB webcams running ffmpeg to stream the audio/video to the RTSP server. Then I run camera.ui[2] separately for a nicer interface on top of all the cameras, HomeKit integration, etc.

The only downside hardware-wise is I don't get any indoor IR night vision with these, which some of the nicer "smart home" account-locked ones do.

It's honestly not too bad to set up if you run [1] and [2] in Docker. I've done disaster recovery scenarios of my home infra where I straight up disconnect the modem's uplink and everything works without any issues.

[1] - https://github.com/bluenviron/mediamtx

[2] - https://github.com/seydx/camera.ui

In the past I’ve played around with using Scrypted or Camera.UI to bring non-HomeKit IP cameras into HomeKit. I think HomeAssistant and HomeBridge both have basic modules which would do this too (ffmpeg at bare minimum). A docker image running on a RaspberryPi or Synology is probably good enough.

camera.ui

You could try https://github.com/SeydX/camera.ui. Some say its CPU usage when recognising movement is not as high as scrypted. You could give it a shot.