dvnpkgs

My Nix packages and pinned upstream exports.

Packages

Export	Source	x86_64-linux	aarch64-darwin
tg	Re-export from aly.codes/tg	Yes	Yes
tgmcp	Re-export from aly.codes/tg	Yes	Yes
crush	Personal crush fork	Yes	Yes
t3code	Forked T3 Code source build with bundled coding agents	Yes	Yes
t3code-desktop	T3 Code desktop with Linux OAuth callback support	Yes	Yes
sway	Sway with wlroots patches	Yes	No
tmux	Personal tmux configuration	Yes	Yes
vicinae-extensions-pdsls	PDSls integration for Vicinae	Yes	Yes
vicinae-extensions-herdr	Herdr integration for Vicinae	Yes	Yes
zen-browser	Patched Zen release binaries	Yes	No
display-pilot-2	BenQ Display Pilot 2 AppImage (unfree)	Yes	No
freepilot	Rust monitor controls with a GPUI app and CLI	Yes	No
update-zen	Python release updater built with uv2nix	Yes	Yes
generate-host-readmes	Host documentation from NixOS and macOS hardware reports	Yes	Yes

The cluster helpers are also exported:

• check-k8s validates a cluster repository from its working directory. Pass --kubernetes-version <major.minor.patch> for the cluster's Kubernetes version. It supports Linux and macOS.
• backup-metrics publishes systemd Restic job results. It supports Linux.
• btrfs-metrics publishes existing Btrfs scrub results and device errors. It supports Linux.

The reporters accept --directory for their output location. Deployment repositories own service definitions, timers, job selection, and metric paths. Helper regression tests and reporter lint and type checks run in this repository.

The Herdr extension uses macOS tools to launch and focus terminals. Those actions may fail on Linux. Install the Herdr CLI separately.

Display Pilot 2

Display Pilot 2 controls BenQ RD series monitors over DDC/CI. It needs read-write access to /dev/i2c-*. On NixOS, load i2c-dev, add your user to the i2c group, and allow unfree packages:

hardware.i2c.enable = true;
users.users.<name>.extraGroups = ["i2c"];
nixpkgs.config.allowUnfree = true;

Log out and back in after changing groups. Check access with ls -l /dev/i2c-*.

Freepilot is a free alternative with a GPUI desktop app, tray picture-mode controls, and CLI subcommands. It uses ddcutil with the same I²C permissions and opens the GUI when run without a subcommand. The freepilot export includes its desktop entry and runtime dependencies. Its upstream flake also provides NixOS and Home Manager modules.

BenQ supports GNOME on X11. The wrapper sets QT_QPA_PLATFORM=xcb, so Wayland sessions need XWayland. DDC/CI controls should work on any desktop, but resolution scaling uses the desktop's display API and may fail outside GNOME. On other desktops, install gnome-control-center separately to use the settings shortcut.

The in-app updater cannot replace files in the Nix store. Update through this flake instead.

Use a package

Add the flake input:

inputs.dvnpkgs.url = "github:devon-systems/dvnpkgs";

Then select a package for the current system:

home.packages = [
  inputs.dvnpkgs.packages.${pkgs.stdenv.hostPlatform.system}.tg
];

Development

Enter the pinned development shell with nix develop, or run direnv allow to load it automatically. Package definitions live in nix/packages/<name>/.

Build one package or every package supported on your system:

just build tg
just build-all

Before committing, run:

nix fmt
nix flake check

CI builds every exported package on its supported systems. Pull requests build packages and checks whose derivations change. Changes to the flake or CI logic run every build.

Update dependencies

Update a flake input and commit the new lockfile:

just update tg

Preview and apply a Zen update:

nix run .#update-zen -- --check
just update-zen

Preview and apply a Vicinae extension update:

nix develop -c python scripts/update-vicinae-extension.py pdsls --check
just update-vicinae-extension pdsls

Use herdr instead of pdsls for the Herdr extension.

Preview and apply a Display Pilot 2 update:

nix develop -c python scripts/update-display-pilot-2.py --check
just update-display-pilot-2

Daily workflows open update PRs for Zen, Display Pilot 2, and both extensions. Auto-merge waits for CI to pass.

Credits

Zen's packaging comes from youwen5/zen-browser-flake at 458cd16. License notices are in LICENSE and LICENSE.nixpkgs.