m-step/flake.nix at main · M-Step-Framework/m-step · GitHub

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{
  description = "Embedded ARM dev shell with Python packages";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
        };

	dependencies = [
          pkgs.cmake
          pkgs.gcc-arm-embedded-13
          pkgs.mcuboot-imgtool
	  pkgs.gtkwave
	  pkgs.jupyter
      	];

        # Python packages
      	pythonEnv = pkgs.python3.withPackages (py: [
          py.cbor2
          py.click
          py.cryptography
          py.intelhex
          py.pyyaml
          py.jinja2
          py.ninja
          py.kconfiglib
          py.tkinter
	  py.matplotlib
	  py.pyserial
      	]);

      in {
        devShells.default = pkgs.mkShell {
          name = "tfm-dev-shell";

          buildInputs = [
            dependencies
            pythonEnv
          ];

          shellHook = ''
           echo "ARM dev environment ready."

	   # If fish exists, open it
           if command -v fish &> /dev/null; then
             exec fish
           fi
          '';
        };
      }
    );
}