From 846f0c04835be2fe819d392e963dcc1ddae3a530 Mon Sep 17 00:00:00 2001
From: akash-akya <akashh246@gmail.com>
Date: Sun, 23 Jun 2024 00:35:26 +0530
Subject: [PATCH] Rewrite flakes.nix to avoid using flake-utils

---
 flake.lock | 34 ----------------------------------
 flake.nix  | 29 +++++++++++++++--------------
 2 files changed, 15 insertions(+), 48 deletions(-)

diff --git a/flake.lock b/flake.lock
index 8b6cba7..0360468 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,23 +1,5 @@
 {
   "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1718835956,
@@ -36,24 +18,8 @@
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 9312e99..fc0f7d1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,22 +2,23 @@
   description = "Elixir Development Environment";
 
   inputs = {
-    nixpkgs = { url = "github:NixOS/nixpkgs/nixos-24.05"; };
-    flake-utils = { url = "github:numtide/flake-utils"; };
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
   };
 
-  outputs = { self, nixpkgs, flake-utils }:
-   flake-utils.lib.eachDefaultSystem (system:
-      let
-        inherit (pkgs.lib) optional optionals;
+  outputs = { self, nixpkgs, ... }:
+    let
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
         pkgs = import nixpkgs { inherit system; };
-      in
-      with pkgs;
-      {
-        devShell = pkgs.mkShell {
-          buildInputs = [
-            elixir
-          ] ;
-        };
       });
+    in
+      {
+        devShells = forAllSystems ({ pkgs }: {
+          default = pkgs.mkShell {
+            packages = with pkgs; [
+              elixir
+            ];
+          };
+        });
+      };
 }