I just got my kickstarter “High-Resolution Autofocus Camera for Raspberry Pi” package, and after following the instructions I can use libcamera on my Pi (using a Pi 1 v1.2 B+ because I guess I like to take things slowly 
).
So the camera is working fine, but my use case, which I naively thought would be a simple plug & play matter not really considering the amount of moving parts, was to use uv4l server to serve webrtc video, as I have done in the past with other, lower resolution cameras on this same pi.
The problem is, it just does not work. Since the IMX519 driver is a kernel space one, and it gets loaded on boot, I tried to do
uv4l --external-driver --device-name video0 --server-option '--port=9000'
which runs:
<notice> [core] Trying to load the the Streaming Server plug-in...
<notice> [server] HTTP/HTTPS Streaming & WebRTC Signalling Server v1.1.130 built on Jan 16 2022
<warning> [server] SSL is not enabled for the Streaming Server. Using unsecure HTTP.
<notice> [core] Streaming Server loaded!
<notice> [server] Web Streaming Server listening on port 9000
<notice> [driver] Using video device /dev/video0
<notice> [webrtc] WebRTC Renderer extension successfully loaded
<notice> [server] WebRTC, Signalling Server and STUN Server extensions successfully loaded
but if I try to run webrtc video using the demo web app from uv4l, the pi just hangs, dead in the water. No errors that I can find on logs after a reboot.
I am using a freshly installed bullseye raspberryOS, followed the instructions on https://www.arducam.com/downloads/arducam-imx519-start-guide.pdf for it. Tried with both the default 64 and 128 MB of GPU memory (256 seems to break other things on the OS).
I confess not having dug deep into this, as it might just be that I’m doing something inherently stupid or unattainable, but I really wanted this to work, so my questions are; should this work? and if not, is there something that can be done/is being done/I can do myself to resolve this?
Thank you