these 2 derivations will be built:
  /nix/store/2yps8hcfg5wyhmivjj34sg8l8ihbssw6-opencode2-2.0.22.drv
  /nix/store/pqc6zhm7yfgm22ybri5nk5cqbw2iabmc-check-opencode2.drv