aiolabs/boltcard-writer
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feat: nix flake with package, NixOS module and dev shell

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nix run / nix build produce a wrapped CLI that pins libpcsclite by store
path, the package build runs the test suite (so nix flake check is CI),
programs.boltcard-writer.enable installs it and turns on pcscd, and
nix develop / nix-shell give the uv workflow used on Arch.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Padreug 2026-09-20 21:53:07 +02:00
commit 959b6ea17d
4 changed files with 132 additions and 7 deletions
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{
description = "Write, verify and wipe Bolt Cards (NTAG 424 DNA) with a PC/SC NFC reader";
inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
outputs = { self, nixpkgs }:
let
systems = [ "x86_64-linux" "aarch64-linux" ];
forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f nixpkgs.legacyPackages.${system});
mkPackage = pkgs:
pkgs.python3Packages.buildPythonApplication {
pname = "boltcard-writer";
version = "0.1.0";
pyproject = true;
src = self;
build-system = [ pkgs.python3Packages.hatchling ];
dependencies = with pkgs.python3Packages; [ click cryptography ];
# pcsc.py loads libpcsclite via ctypes; pin the store path so the
# binary works on any system that runs pcscd, no LD_LIBRARY_PATH.
makeWrapperArgs = [ "--set-default" "PCSCLITE_LIB" "${pkgs.pcsclite.lib}/lib/libpcsclite.so.1" ];
nativeCheckInputs = [ pkgs.python3Packages.pytestCheckHook ];
meta = {
description = "Write, verify and wipe Bolt Cards (NTAG 424 DNA) from a Linux PC with a USB NFC reader";
homepage = "https://git.atitlan.io/aiolabs/boltcard-writer";
license = pkgs.lib.licenses.mit;
mainProgram = "boltcard-writer";
platforms = pkgs.lib.platforms.linux;
};
};
in
{
packages = forAllSystems (pkgs: rec {
boltcard-writer = mkPackage pkgs;
default = boltcard-writer;
});
apps = forAllSystems (pkgs: {
default = {
type = "app";
program = "${self.packages.${pkgs.system}.default}/bin/boltcard-writer";
};
});
overlays.default = final: prev: { boltcard-writer = mkPackage final; };
# programs.boltcard-writer.enable = true; -> installs the CLI and
# enables pcscd with the CCID driver (what the ACR1252U needs).
nixosModules.default = { config, lib, pkgs, ... }:
let cfg = config.programs.boltcard-writer; in {
options.programs.boltcard-writer = {
enable = lib.mkEnableOption "boltcard-writer and the pcscd it needs";
package = lib.mkOption {
type = lib.types.package;
default = self.packages.${pkgs.system}.default;
description = "boltcard-writer package to install";
};
};
config = lib.mkIf cfg.enable {
environment.systemPackages = [ cfg.package pkgs.pcsc-tools ];
services.pcscd.enable = true;
};
};
# `nix flake check` builds the package, which runs the pytest suite.
checks = forAllSystems (pkgs: { package = self.packages.${pkgs.system}.default; });
devShells = forAllSystems (pkgs: {
default = pkgs.mkShell {
packages = [ pkgs.uv pkgs.python3 pkgs.pcsclite pkgs.pcsc-tools ];
PCSCLITE_LIB = "${pkgs.pcsclite.lib}/lib/libpcsclite.so.1";
UV_PYTHON = "${pkgs.python3}/bin/python3";
};
});
};
}