I think my desire for a #openwrt style generic firmware for IP cameras has been partially answered by #thingino :-)

https://thingino.com/

Have just reflashed two Neos Smartcams, aka Wyse Cam 2, Xiaomi iSC5, Atom Cam 1. Got them dirt cheap on eBay since Neos shut down their UK operations in November, and they were 'streaming only'
Thingino

Open-source Firmware for Ingenic SoC IP Cameras

@kyle There's been some cool stuff going on with the #OpenWRT video feed lately: https://github.com/openwrt/video/

OpenWrt just enabled the feed to be build regularly too long ago: https://github.com/openwrt/openwrt/commit/b4cc5743d90103a0536b07c618f21bfd5685fbe2

The main focus is getting OpenWRT running on IP cameras, which are usually pretty sketchy when it comes to security. Oh, and for fun, you can even run Doom on OpenWRT now.

If you are interested just asg dangowrt.

GitHub - openwrt/video

Contribute to openwrt/video development by creating an account on GitHub.

GitHub
@awkward Those feeds and repos seem focused on video output from OpenWRT. SDL2, Vulkan, QT5, Cairo... all GUI related frameworks and drivers. EDID is even in there to detect monitor capabilities.

I'm asking about the video capture side of IP cameras. Between my Neos, Ubiquiti, Tapo and Dahua cameras, only the Neos have an alternative firmware at the moment,
#thingino, and the Tapo (C210) may be replaceable courtesy of #openipc.

All are feeding into
#frigate at the moment so viewing the output is not an issue.

The hunt continues.