This adds two brand new AArch64 machines: a generic builder (and
instructions on how to use it) and tv1.waw, an RPi4 acting as digital
signage in the space.
Change-Id: I8d38344ec35f99f4b872cf9526f6e6771fbffc43
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1330
Reviewed-by: informatic <informatic@hackerspace.pl>