{
  description = "on";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    systems.url = "github:nix-systems/default";
  };

  outputs = { nixpkgs, systems, ... }: let
    name = "on";

    forEachSystem = nixpkgs.lib.genAttrs (import systems);
    pkgsForEach = nixpkgs.legacyPackages;
  in {
    devShells = forEachSystem (
      system: let
        pkgs = pkgsForEach.${system};
      in {
        default = pkgs.mkShell {
          inherit name;

          packages = with pkgs; [
            julia
            texliveFull
          ];
        };
      }
    );
  };
}