From c1cbfe75b0e2b26fa0918c5634d13c8364d04599 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alu=C3=ADsio=20Augusto=20Silva=20Gon=C3=A7alves?=
 <aluisio@aasg.name>
Date: Sat, 19 Dec 2020 00:39:25 -0300
Subject: [PATCH] export module as system-independent flake output

Flake outputs are a mixture of system-dependent and system-independent
sets, and flake-utils doesn't do much to distinguish one from the other.
Because of that, the `age` NixOS module currently has to be acessed as
`agenix.nixosModules.${system}.age`, rather than the documented
`agenix.nixosModules.age`.

To remedy that, (conceptually) split `outputs` in two, let flake-utils
handle the system-dependent half, and merge them to form the actual
outputs.  The names for the two halves were taken from [1].

[1]: https://github.com/NixOS/nix/issues/3843#issuecomment-661720562
---
 flake.nix | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/flake.nix b/flake.nix
index ca00c66..bbf5101 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,10 +4,14 @@
   inputs.flake-utils.url = "github:numtide/flake-utils";
 
   outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem (system:
-      {
+    let
+      exports = {
         nixosModules.age = import ./modules/age.nix;
-        packages = nixpkgs.legacyPackages.${system}.callPackage ./default.nix {};
+      };
+      outputs = flake-utils.lib.eachDefaultSystem (system: {
+        packages = nixpkgs.legacyPackages.${system}.callPackage ./default.nix { };
         defaultPackage = self.packages.${system}.agenix;
       });
+    in
+    exports // outputs;
 }