It has been 2½ year since I wrote the original post.
So, I guess versions of software and drivers has changed a lot since then.
Maybe this post from will help you regarding the wifi driver even though it is also pretty old:
I have not updated my FireCapture installation for a while and everything still works on my Raspberry Pi 4 since i configured it using the steps from the original post.
But I guess that this guide is outdated now, so other people are welcome to make a new post or a reply to this thread with an updated guide.
maxthebuilder wrote: I gave this a try. It worked - thank you very much for great instructions!
UI, however, is not very responsive...
I adjusted the heap to 512 - it became better but still sluggish.
I tried Astroberry which comes with Firecapture preinstalled - it's more responsive there. I wonder why...