If all nodes are connected through ethernet to each other (or at least one common node) you could go for OpenWRT’s ‘Dumb AP’ setup as well

Edit: Already mentioned here; https://feditown.com/comment/1980836

Maintainer has been absent for some time so kernel v6.11 and v6.12 isn’t supported OOTB, to get it to work with kernel v6.11 you need to pull the fix from: !48

Additionally you can try and force use amdgpu rather than radeon, by setting the kernel flags:

radeon.cik_support=0 radeon.si_support=0 amdgpu.cik_support=1 amdgpu.si_support=1 amdgpu.dc=1

Source

Device initalization failed according to the Xorg logs;

1. Dump your firmware version
2. Dump your kernel version
3. Dump your kernel logs (dmesg or journalctl -k)