valenpkgs

valenpkgs is Valen's personal Nix flake: a focused collection of custom derivations, an overlay, and a NixOS module. It targets x86_64-linux and uses nixpkgs from the nixos-26.05 branch.

Packages

Package	Description
devilutionx	DevilutionX 1.5.5, a modern Diablo engine build. It bundles the full retail DIABDAT.MPQ data and starts without further setup.
netui	Network-management TUI provided by the upstream netui flake. Also available through the default overlay as pkgs.valenpkgs.netui.
topmem	CachyOS memory-monitoring utility.
psa-update	CLI for updating Stellantis infotainment systems.
prime-agent	Prime Intellect's coding-agent CLI with persistent sessions and a Python REPL kernel (version 0.9.8). Run it with nix run .#prime-agent -- --help.
agopengps	AgOpenGPS agricultural guidance application, packaged with Wine for x86_64 Linux.
linux-rpi4-minimal	Cross-built minimal headless Raspberry Pi 4 Linux kernel.

DevilutionX data

The default build bundles the full retail DIABDAT.MPQ from Pixeldrain in share/diasurgical/devilution/ and wraps the binary to use that data directory. A lowercase diabdat.mpq symlink is included for case-sensitive lookups.

NixOS Module

Import the default module, then enable the packages you want:

{
  imports = [ inputs.valenpkgs.nixosModules.default ];

  valenpkgs.devilutionx = {
    enable = true;
  };
}

valenpkgs.devilutionx.enable installs DevilutionX with the bundled retail data. The module also exposes boolean options for topmem, agopengps, psa-update, and linux-rpi4-minimal.

Usage and Integration

Add the flake input to a flake-based NixOS configuration:

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-26.05";
    valenpkgs.url = "git+ssh://git@git.valentinus.dev/valeninki/nixpkgs.git";
    valenpkgs.inputs.nixpkgs.follows = "nixpkgs";
  };
}

Use an exported package directly in a configuration:

environment.systemPackages = [
  inputs.valenpkgs.packages.${pkgs.system}.netui
];

Run packages without installing them:

nix run .#netui
NIXPKGS_ALLOW_UNFREE=1 nix run --impure .#devilutionx

DevilutionX is marked with its upstream Sustainable Use License, which Nix treats as unfree. For imperative flake commands, use NIXPKGS_ALLOW_UNFREE=1 together with --impure. In NixOS, allow only this package with:

nixpkgs.config.allowUnfreePredicate = pkg:
  builtins.elem (lib.getName pkg) [ "devilutionx" ];

To use the netui overlay instead of the package output:

nixpkgs.overlays = [ inputs.valenpkgs.overlays.default ];

environment.systemPackages = [ pkgs.valenpkgs.netui ];

Development

The development shell provides nixpkgs-fmt, statix, and deadnix:

nix develop
nix fmt
NIXPKGS_ALLOW_UNFREE=1 nix flake check path:. --no-build --impure