From 512639d692811f6581105c68797ba51d8e360bf7 Mon Sep 17 00:00:00 2001
From: NotAShelf <raf@notashelf.dev>
Date: Mon, 22 Jul 2024 00:33:41 +0300
Subject: [PATCH] flake: allow overriding flake-parts systems

---
 flake.lock | 18 +++++++++++++++++-
 flake.nix  | 14 ++++++++++----
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/flake.lock b/flake.lock
index 9095610..01efc13 100644
--- a/flake.lock
+++ b/flake.lock
@@ -66,7 +66,23 @@
       "inputs": {
         "flake-compat": "flake-compat",
         "flake-parts": "flake-parts",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "systems": "systems"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1689347949,
+        "narHash": "sha256-12tWmuL2zgBgZkdoB6qXZsgJEH9LR3oUgpaQq2RbI80=",
+        "owner": "nix-systems",
+        "repo": "default-linux",
+        "rev": "31732fcf5e8fea42e59c2488ad31a0e651500f68",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default-linux",
+        "type": "github"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index b74a41a..1f5b65a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,6 +4,7 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     flake-parts.url = "github:hercules-ci/flake-parts";
+    systems.url = "github:nix-systems/default-linux";
 
     flake-compat = {
       url = "github:edolstra/flake-compat";
@@ -12,15 +13,15 @@
   };
 
   outputs = {
+    self,
     nixpkgs,
     flake-parts,
-    self,
     ...
   } @ inputs: let
     pins = import ./npins;
   in
     flake-parts.lib.mkFlake {inherit inputs self;} {
-      systems = ["x86_64-linux" "aarch64-linux"];
+      systems = import inputs.systems;
       imports = [flake-parts.flakeModules.easyOverlay];
 
       perSystem = {
@@ -43,8 +44,13 @@
           directory = ./pkgs;
         };
 
-        formatter = pkgs.alejandra;
-        devShells.default = with pkgs; mkShell {buildInputs = [npins];};
+        formatter = config.packages.alejandra-custom;
+        devShells = {
+          default = self.devShells.${system}.npins;
+          npins = pkgs.mkShellNoCC {
+            packages = [pkgs.npins];
+          };
+        };
       };
     };
 }