migrate scion default

projects/SCION/default.nix

@@ -0,0 +1,55 @@
+{
+  lib,
+  pkgs,
+  sources,
+}@args:
+{
+  metadata = {
+    summary = "SCION is a clean-slate Next-Generation Internet (NGI) architecture which offers a.o. multi-path and path-awareness capabilities by design.";
+    subgrants = [
+      "SCION-proxy"
+      "SCION-router-codealignment"
+      "Verified-SCION-router"
+      "SCION-Rains"
+      "SCION-Swarm"
+      "SCION-IPFS"
+      "SCION-1M"
+      "SCION-geo"
+    ];
+    links = {
+      docs = {
+        text = "SCION Documentation";
+        url = "https://docs.scion.org/en/latest/";
+      };
+      build = {
+        text = "Build from source";
+        url = "https://github.com/scionproto/scion?tab=readme-ov-file#build-from-sources";
+      };
+      tests = {
+        text = "Testing Tutorial";
+        url = "https://docs.scion.org/en/latest/tutorials/deploy.html#tasks-to-perform";
+      };
+    };
+  };
+
+  nixos.modules.programs = {
+    scion = {
+      name = "scion";
+      module = ./programs/basic/module.nix;
+      examples.basic = {
+        module = ./programs/basic/examples/basic.nix;
+        description = "";
+        tests.basic = import ./programs/basic/tests/basic.nix args;
+      };
+    };
+  };
+
+  nixos.modules.services = {
+    scion = {
+      name = "scion";
+      module = "${sources.inputs.nixpkgs}/nixos/modules/services/networking/scion/scion.nix";
+      # TODO: unbreak
+      # tests.scion = "${sources.inputs.nixpkgs}/nixos/tests/scion/freestanding-deployment/default.nix";
+    };
+  };
+}

projects/SCION/programs/basic/examples/basic.nix

@@ -0,0 +1,5 @@
+{ ... }:
+
+{
+  programs.scion.enable = true;
+}

projects/SCION/programs/basic/module.nix

@@ -0,0 +1,24 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  cfg = config.programs.scion;
+in
+{
+  options.programs.scion = {
+    enable = lib.mkEnableOption "scion";
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [
+      scion
+      scion-apps
+      # scion-bootstrapper # FIX: broken in nixpkgs
+      ioq3-scion
+      pan-bindings
+    ];
+  };
+}

projects/SCION/programs/basic/tests/basic.nix

@@ -0,0 +1,28 @@
+{
+  sources,
+  ...
+}:
+
+{
+  name = "scion";
+
+  nodes = {
+    machine =
+      { ... }:
+      {
+        imports = [
+          sources.modules.ngipkgs
+          sources.modules.programs.scion
+          sources.examples.SCION.basic
+        ];
+      };
+  };
+
+  testScript =
+    { nodes, ... }:
+    ''
+      start_all()
+
+      machine.succeed()
+    '';
+}