{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-parts.url = "github:hercules-ci/flake-parts";
  };
  outputs = {
    self,
    nixpkgs,
    flake-parts,
  } @ inputs:
    flake-parts.lib.mkFlake {inherit inputs;} {
      systems = [
        "x86_64-linux"
        "aarch64-linux"
        "x86_64-darwin"
        "aarch64-darwin"
      ];
      perSystem = {system, ...}: let
        pkgs = import nixpkgs {inherit system;};
        packages = with pkgs; [texlive.combined.scheme-full];
      in {
        devShells = {
          all = pkgs.mkShell {
            buildInputs = packages;
            shellHook = ''
              set -e
              latexmk -outdir=tmp/ -pdf ms.tex
              touch tmp/ms.bbl
              cp tmp/ms.bbl .
              tar cf tmp/tex.tar ms.bbl ms.bib ms.tex $(grep "^INPUT ./" tmp/ms.fls | uniq | cut -b 9-)
              rm ms.bbl
              exit
            '';
          };
          check = pkgs.mkShell {
            buildInputs =
              packages
              ++ [
                pkgs.git
              ];
            shellHook = ''
              set -e
              nix flake check
              nix fmt
              latexmk -outdir=tmp/ -pdf ms.tex
              checkcites tmp/ms.aux
              chktex ms.tex
              lacheck ms.tex
              ls -ap | grep -v -E -x './|../|.gitignore|Makefile|flake.lock|flake.nix|ms.bib|ms.tex|prm/|python/|tmp/' | grep -q . && exit 1
              test $(basename $(pwd)) = 'latex'
              exit
            '';
          };
          default = pkgs.mkShell {buildInputs = packages;};
        };
        formatter = pkgs.alejandra;
      };
    };
}