Nix Cache by clerie Public key: cache.nix.clerie.de:bAt1GJTS9BOTcXFWj3nURrSlcjqikCev9yDvqArMP5g= NixOS Configuration: nix.settings = { substituters = [ "https://cache.nix.clerie.de" ]; trusted-public-keys = [ "cache.nix.clerie.de:bAt1GJTS9BOTcXFWj3nURrSlcjqikCev9yDvqArMP5g=" ]; } Try: nix build --substituters "https://cache.nix.clerie.de" \ --trusted-public-keys "cache.nix.clerie.de:bAt1GJTS9BOTcXFWj3nURrSlcjqikCev9yDvqArMP5g=" \ "git+https://git.clerie.de/clerie/fieldpoc.git#fieldpoc" .-*..*-.