On Sat, 2022-07-16 at 05:30 +0100, Gareth Evans wrote: > I was of the impression (which I think it is fair to say has been created) > that systemd had done away with /etc/rc.local
rc.local is still run on the latest Debian stable. You need to make sure it's a proper executable, i.e. starts with a shebang like '#!/bin/sh' and the file has execute permissions. -- Tixy