* Rebase on top of detsys-ts for abstracting over install.determinate.systems
* Support the legacy nix-installer-xxx source prefs
* Document source-* opts
* Update deps
* cut duration so it doesn't take forever
* Move the complete step into a finally block
* Test a busted run
* come on ...
* update to the main detsys-ts
* Switch to the delegated execution model
* throw an error to check behavior
* Fixup lint errors
* Drop the forced error
* Share /bin with nix for post-build-hooks
* test the magic nix cache
* wtf
* permissions
* Share /home and the network namespace too
* test the devshell
* Don't force-set kvm to 0 ... d'oh!
* dev shell support for aarch64-linux
* ?
* More testing / debug
* Make it run anyway
* Bind /lib too so /bin/sh works ... sigh
* Disable gha-cache for tesing
* Kill the magic nix cache before reinstalling
* Don't set the extra environment variables extraniously
* Enable gha cache again
