YubiKey-Guide: NixOS Build Broken

While following the NixOS build instructions I came across a few issues:

Building initially gave an error

error: experimental Nix feature ‘nix-command’ is disabled; use ‘–extra-experimental-features nix-command’ to override

I was able to fix this by using nix --extra-experimental-features nix-command build -f yubikey-installer.nix -o installer nixos-yubikey

The next issue was I got an error about yubioath-desktop being deprecated

error: yubioath-desktop has been deprecated by upstream in favor of yubioath-flutter

I was able to fix that by replacing yubioath-desktop with yubioath-flutter

The final issue I have is

error: builder for ‘/nix/store/g7pw6yjayp9qxmbh72b8pwx82j1jxq2v-hopenpgp-tools-0.23.7.drv’ failed with exit code 1; last 10 log lines: In an equation for ‘spGetSCT’: Patterns of type ‘Pkt’ not matched: PKESKPkt _ _ _ _ SKESKPkt _ _ _ _ OnePassSignaturePkt _ _ _ _ _ _ SecretKeyPkt _ _ … | 211 | spGetSCT (SignaturePkt s) = fmap fromIntegral (sigCT s) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ For full logs, run ‘nix log /nix/store/g7pw6yjayp9qxmbh72b8pwx82j1jxq2v-hopenpgp-tools-0.23.7.drv’.

It looks like hopengpg-tools is broken for nix? https://github.com/NixOS/nixpkgs/blob/6f3728df507fd1683cf16e49a0078dc800330259/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml

https://github.com/NixOS/nixpkgs/search?q=hopenpgp&type=issues

I just wanted to open this issue to see if anyone has solved this. In the meantime, I’ll keep researching and if I can get it working, I’ll post a PR.

Thanks for this great guide drduh! And thanks to everyone else who has contributed