Files
keyboard/flake.nix
googlebot bedac2945a Initial System76 Launch 3 keyboard firmware project
Nix flake with devShell providing qmk CLI for firmware development.
Custom keymap (copy of default) symlinked into QMK tree on shell entry.

Setup: nix develop, then qmk setup system76/qmk_firmware
Build: qmk compile -kb system76/launch_3 -km custom

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-13 21:22:53 -07:00

63 lines
1.6 KiB
Nix

{
description = "System76 Launch 3 keyboard firmware";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
};
outputs = { self, nixpkgs }:
let
supportedSystems = [ "x86_64-linux" "aarch64-linux" ];
forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
in {
devShells = forAllSystems (system:
let pkgs = nixpkgs.legacyPackages.${system};
in {
default = pkgs.mkShell {
name = "launch3-firmware";
packages = [
pkgs.qmk
pkgs.python3Packages.appdirs
];
shellHook = ''
export QMK_HOME="$PWD/qmk_firmware"
# Symlink tracked keymap into QMK tree
if [ -d "$QMK_HOME/keyboards/system76/launch_3" ]; then
ln -sfn "$PWD/keymaps/custom" "$QMK_HOME/keyboards/system76/launch_3/keymaps/custom"
fi
'';
};
});
packages = forAllSystems (system:
let pkgs = nixpkgs.legacyPackages.${system};
in {
firmware = pkgs.stdenv.mkDerivation {
pname = "launch3-firmware";
version = "0.1.0";
src = ./qmk_firmware;
nativeBuildInputs = [
pkgs.qmk
pkgs.python3Packages.appdirs
];
buildPhase = ''
export HOME=$(mktemp -d)
export QMK_HOME="$PWD"
qmk compile -kb system76/launch_3 -km custom
'';
installPhase = ''
mkdir -p $out
cp *.uf2 $out/ 2>/dev/null || cp .build/*.uf2 $out/
'';
};
});
};
}