Need guide in loading Debian into DSGW-210

I need a ‘How To’ guide in loading Debian into this device, can you help me ?
any compatible ones, bullseye/OpenWrt eetc

any Linux OS that goes with RK3328
if i need to completely re-flash it with a new OS how do i proceed

say i have a bullseye image file, how do i proceed with the installation ?

also the drivers

What debian image do you imply?
The default one in HA is just debian

For raw debian image, you could refer to the resource center

It’s a raw debian image with all drivers