This includes configuring Nix Bitcoin within my existing flake. The
intent is to run Bitcoin Core, LND, Electrs, Mempool, and Alby Hub here
instead of via Umbrel.
Note, Fulcrum was tried but kept crashing and losing state... which is
not okay with me.
This adds all the code needed to get mightmac setup, at least to start
with. A couple of other things were changed to account for this being
the first Apple Silicon Mac I have used.
Additionally, I have restricted VLC to only select Macs now due to
using a custom build of it on my work computer.
