Nix / NixOS

Use an existing NixOS flake configuration. Retain your current Nixpkgs, system, and hardware modules.

1. Import the NixOS Module

Replace HOSTNAME with your configuration name. This example imports the dae module.

# flake.nix

{
  inputs.daeuniverse.url = "github:daeuniverse/flake.nix";
  # ...

  outputs = {nixpkgs, ...} @ inputs: {
    nixosConfigurations.HOSTNAME = nixpkgs.lib.nixosSystem {
      modules = [
        inputs.daeuniverse.nixosModules.dae
      ];
    };
  };
}

2. Enable dae

# nixos configuration module
{
  # ...

  services.dae = {
      enable = true;

      openFirewall = {
        enable = true;
        port = 12345;
      };

      # `configFile` or `config` must be set

      /* default options

      package = inputs.daeuniverse.packages.x86_64-linux.dae;
      disableTxChecksumIpGeneric = false;
      assets = with pkgs; [ v2ray-geoip v2ray-domain-list-community ];

      */

      # alternative of `assets`, a dir contains geo database.
      # assetsPath = "/etc/dae";
  };
}

Set exactly one of configFile and config. To use an external file, add this option inside services.dae and prepare the file before applying the configuration:

configFile = "/etc/dae/config.dae";

Inline config is readable by all users through the Nix store. The firewall port must match tproxy_port. See Minimal Configuration and the dae module options.

3. Apply the System Configuration

In the system flake directory, replace HOSTNAME and run:

sudo

sudo nixos-rebuild switch --flake .#HOSTNAME

root

nixos-rebuild switch --flake .#HOSTNAME

The module manages systemd boot enablement; no separate systemctl enable is needed.

Alternative: Global Packages

Use this instead of the service module. Do not install another dae through environment.systemPackages while enabling services.dae. Replace x86_64-linux with aarch64-linux when appropriate.

# nixos configuration module
{
  environment.systemPackages =
    with inputs.daeuniverse.packages.x86_64-linux;
      [ dae ]; # or dae-unstable
}

Package Variants

Package	Purpose
dae / dae-release	Release; dae aliases dae-release
dae-unstable	Tracks the dae main branch

nix flake show github:daeuniverse/flake.nix

Optional: Binary Cache

The upstream garnix cache serves x86_64-linux and aarch64-linux builds. Merge these settings into the NixOS configuration.

nix.settings = {
  substituters = ["https://cache.garnix.io"];
  trusted-public-keys = [
    "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
  ];
};

See the daeuniverse/flake.nix README.

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daeuniverse/flake.nix README · ISC