「🎉」 init: wtf

flake.nix

@@ -0,0 +1,44 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
+  };
+
+  outputs =
+    inputs@{ self, nixpkgs, ... }:
+    let
+      supportedSystems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+      forEachSupportedSystem =
+        f:
+        nixpkgs.lib.genAttrs supportedSystems (
+          system:
+          f {
+            pkgs = import nixpkgs { inherit system; };
+          }
+        );
+    in
+    {
+      devShells = forEachSupportedSystem (
+        { pkgs }:
+        {
+          default = pkgs.mkShell {
+            hardeningDisable = [ "all" ];
+            nativeBuildInputs = with pkgs; [
+              clang_12
+            ];
+            buildInputs = with pkgs; [
+            ];
+            packages = with pkgs; [
+              nixfmt-rfc-style
+              valgrind
+              gdb
+            ];
+          };
+        }
+      );
+    };
+}