{
  description = "System information in JSON format for eww";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    flake-utils = {
      url = "github:numtide/flake-utils";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, flake-utils, rust-overlay }:
    flake-utils.lib.eachSystem ["x86_64-linux"] (system:
      let
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs { inherit system overlays; };
        rustVersion = (pkgs.rust-bin.fromRustupToolchainFile ./rustup-toolchain.toml);
        rustPlatform = pkgs.makeRustPlatform {
          cargo = rustVersion;
          rustc = rustVersion;
        };
        appName = "pumo-system-info";
        appRustBuild = rustPlatform.buildRustPackage {
          pname = appName;
          version = "0.1.0";
          src = ./.;
          cargoLock.lockFile = ./Cargo.lock;
          doCheck = true;
        };
      in {
        packages.rustPackage = appRustBuild;
        defaultPackage = appRustBuild;
        devShell = with pkgs; mkShell {
          buildInputs = [
            bacon
            cargo
            cargo-deny
            cargo-msrv
            cargo-tarpaulin
            just
            rustVersion
          ];
        };
      }
    );
}