... of course it wouldn't be just moving the shell.nix file, d'uh.

"release" was just a nice coincidence apparently

unclear what's happening to the unzip

we should keep it working for when we eventually add a test suite...

The rest is generated code that we're not going to change or spend time
cleaning up.

Previously we inherited some arbitrary version from the CI execution
environment, woops.

Act on @jcalderone's improvement suggestion in
!7 (comment 27550)

It does not follow / dereference symlinks, which is a problem with Nix.

See:

https://gitlab.com/gitlab-org/gitlab/-/issues/19746
> 2 months ago
> This is also relevant for Nix builds, since it creates a ./result symlink to /nix/store/<somewhere>.

and

https://gitlab.com/gitlab-org/gitlab-runner/-/merge_requests/3175