This now mostly replaces ayu, which has been sitting between upstream
and the switch the last 6 months.
It now also configures routing over Mullvad, which also finally enables
IPv6 (I don’t understand how people get away with not providing it
natively in 2023).
Once I get a WLAN card, it will also host its own access point, which
currently still relies on ayu as “dumb AP” (as OpenWRT calls it).
