Snap

Snap is a packaging system by Canonical that simplifies software distribution and updates across Linux distributions. It ensures secure, containerized environments for consistent application performance.

Setup

Snap support is not yet included in nixpkgs upstream but can be added as a Flake module. Adapt your system flake.nix like this:

{
  description = "NixOS configuration";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nix-snapd.url = "github:nix-community/nix-snapd";
    nix-snapd.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = { nixpkgs, nix-snapd }: {
    nixosConfigurations.my-hostname = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules = [
        nix-snapd.nixosModules.default
        {
          services.snap.enable = true;
        }
      ];
    };
  };
}

Usage

Install a Snap package

snap install --devmode --beta dekko2

List Snap packages

snap list

Run Snap package

DISABLE_WAYLAND=1 QT_QPA_PLATFORM=xcb snap run dekko2.dekko