My Nixpkgs Overlay

palo is the example package defined in here (it is actually my user name)

How to install

local

To install the overlay into ~/.config/nixpkgs/overlays just run:

./install.sh

now you can test your builds using:

nix-shell -p palo

global

add the following to your /etc/nixos/configuration.nix:

nixpkgs.config.packageOverrides = import /path/to/overlay.nix pkgs;

now you can install the packages from the overlay

environment.systemPackages = [
    pkgs.palo
];

How to check builds

nix-build -E 'with import <nixpkgs> {} ; callPackage ./default.nix {}';

should create a ./result folder which contains the result of the package.

Links

• A presentation about Overlays
• Package Binaries