nixos-config/nixos/system/all/borg-scripts.nix

{ pkgs, lib, ... }: {

  environment.systemPackages =
    let
      createScript = command: target: repository:
        pkgs.writers.writeBashBin
          "borg-${command}-on-${target}-for-${repository}" ''
          ${pkgs.borgbackup}/bin/borg \
            ${command} \
            --rsh='ssh -i ~/.ssh/palo_rsa.pub' ${target}.private:${repository}/. \
            "$@"
        '';
      targets = [ "borg@pepe" "borg@robi" "borg@cream" "removable@cream" ];
      repositories = [ "pepe" "sterni" "robi" "cream" ];
      commands = [ "list" "mount" ];
    in
    lib.flatten (map
      (command:
        map
          (target: map (repository: createScript command target repository) repositories)
          targets)
      commands);

}