Sorry for the triple post, but I’ve successfully installed 23.05.0-rc3 on my Brume 1 and posted a guide, and wanted to ping people who may be watching this thread. The guide is here: Installing OpenWRT 23.05 on Brume 1
@alzhao I set up an OpenWRT build box for the first time, hopefully soon I’ll be able to try that driver you linked above.