feat!: switch to full flake-parts

pkgs/default.nix

@@ -1,5 +1,11 @@
-{ lib, pkgs, ... }:
+{ self, lib, pkgs, ... }:
 let
+  mkPackages = names: pkgs: builtins.listToAttrs (map
+    (name: {
+      inherit name;
+      value = pkgs.callPackage "${self}/pkgs/${name}" { inherit self name; };
+    })
+    names);
   packageNames = lib.swarselsystems.readNix "pkgs";
 in
-lib.swarselsystems.mkPackages packageNames pkgs
+mkPackages packageNames pkgs

pkgs/swarsel-build/default.nix

@@ -0,0 +1,15 @@
+{ name, nix-output-monitor, writeShellApplication, ... }:
+writeShellApplication {
+  runtimeInputs = [ nix-output-monitor ];
+  inherit name;
+  text = ''
+    set -euo pipefail
+    [[ "$#" -ge 1 ]] \
+      || { echo "usage: build <HOST>..." >&2; exit 1; }
+    HOSTS=()
+    for h in "$@"; do
+      HOSTS+=(".#nixosConfigurations.$h.config.system.build.toplevel")
+    done
+    nom build --no-link --print-out-paths --show-trace "''${HOSTS[@]}"
+  '';
+}