{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs?ref=nixos-unstable";

  outputs = {nixpkgs, ...}: let
    systems = ["x86_64-linux" "aarch64-linux"];
    forAllSystems = nixpkgs.lib.genAttrs systems;
  in {
    devShells = forAllSystems (system: {
      default = nixpkgs.legacyPackages.${system}.mkShell {
        buildInputs = with nixpkgs.legacyPackages.${system}; [
          cmake
          pkg-config
          ninja
          boost
          bear

          nixVersions.nixComponents_2_32.nix-store
          nixVersions.nixComponents_2_32.nix-expr
          nixVersions.nixComponents_2_32.nix-cmd
          nixVersions.nixComponents_2_32.nix-fetchers
          nixVersions.nixComponents_2_32.nix-main
          nixVersions.nixComponents_2_32.nix-util
          nixVersions.nix_2_32
        ];

        env = {
          NIX_PLUGINABI = "0.2";
        };
      };
    });
  };
}