{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
    utils.url = "github:numtide/flake-utils";
    artemist-packages = {
      url = "git+https://git.mildlyfunctional.gay/artemist/packages.git";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };
  outputs =
    {
      self,
      nixpkgs,
      utils,
      artemist-packages,
      rust-overlay,
    }:
    utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [
            artemist-packages.overlays.default
            rust-overlay.overlays.default
          ];
        };
      in
      rec {
        devShells.zephyr = artemist-packages.devShells.${system}.zephyr.override {
          toolchains = with pkgs.zephyrPackages.toolchains; [
            arm-zephyr-eabi
            riscv64-zephyr-elf
          ];
          modules = with pkgs.zephyrPackages.modules; [
            mbedtls
            hal_rpi_pico
            hal_atmel
            cmsis
          ];
          extraPackages = with pkgs; [ pyocd ];
        };
        devShells.zephyr-west = devShells.zephyr.override {
          enableWest = true;
          zephyrSrc = null;
          modules = [ ];
        };
        devShells.rust-embedded =
          let
            rust = pkgs.rust-bin.stable.latest.default.override {
              extensions = [
                "rust-src"
                "llvm-tools-preview"
                "clippy"
              ];
              # just use all of them, why not
              targets = [
                "thumbv6m-none-eabi"
                "thumbv7m-none-eabi"
                "thumbv7em-none-eabi"
                "thumbv7em-none-eabihf"
                "riscv32imac-unknown-none-elf"
              ];
            };
            rust-form = pkgs.rustPlatform.buildRustPackage rec {
              pname = "form";
              version = "0.10.0";
              src = pkgs.fetchFromGitHub {
                owner = "djmcgill";
                repo = pname;
                rev = "v${version}";
                hash = "sha256-cqoc2sTtVdhTAQ65oaJKo1+YMfQu7eHCe8zjRPDz9zg=";
              };
              cargoHash = "sha256-dhPp93AH4VlOVJWXMMUwv8b53vLPdBY3WyaXE4kcEm4=";
            };
          in
          with pkgs;
          mkShell {
            packages = [
              cargo-binutils
              cargo-generate
              gdb
              openocd
              probe-rs
              rust
              rust-form
              svd2rust
              svdtools

            ];
            RUST_SRC_PATH = "${rust}/lib/rustlib/src/rust/library";
          };
        devShells.rust =
          with pkgs;
          mkShell {
            nativeBuildInputs = [
              rustc
              cargo
              rustfmt
              clippy
            ];
            RUST_SRC_PATH = "${rust.packages.stable.rustPlatform.rustLibSrc}";
          };
        devShells.avr =
          with pkgs;
          pkgsCross.avr.mkShell {
            packages = [
              avrdude
              gnumake
            ];

            LIBC = pkgsCross.avr.avrlibc;
          };
        devShells.emoji =
          with pkgs;
          mkShell {
            packages = [
              chromedriver
              chromium
              python3
              python3Packages.aiohttp
              python3Packages.black
              python3Packages.ipython
              python3Packages.gql
              python3Packages.playwright
            ];

            CHROME = "${chromium}/bin/chromium";
          };
        devShells.typst = with pkgs; mkShell { packages = [ typst ]; };
        formatter = pkgs.nixfmt-rfc-style;
      }
    );

}