I'm happy to report that we finally have a Spectrum binary cache set up,
which mitigate the very long build times that have been frustrating
people attempting to try out Spectrum for themselves.

URL: https://cache.dataaturservice.se/spectrum/
Signing key: spectrum-os.org-1:rnnSumz3+Dbs5uewPlwZSTP0k3g/5SRG4hD7Wbr9YuQ=

The build infrastructure is hosted on Vultr, and is accessible by me and
Puck.  Storage is provided by Daniel Kuehn (lejonet).  We don't have logs
in the cache yet, due to a Nix bug[1].  My aim with this service is to
provide low-cost and easy-to-run convenience for people interested in
trying out Spectrum early, so don't assume this architecture is
reflective of that of any future, higher stakes project infrastructure.

Thanks to everybody who's helped me get this up and running over the
last couple of weeks.  I'll write some documentation about how to use it
and link to it from the "Getting Spectrum" docs, and publish the configuration
etc. for the build infrastructure soon but I've been pushing myself very
hard to get this done in the first place, so I need a break from it first.

In future I'd also like to explore possibilities for additional mirrors
of the binary cache (lots of people have offered me storage hosting over
the years!), but there are some additional technical challenges to
solve before I can commit to that.

Alyssa

[1]: https://github.com/NixOS/nix/issues/6403