feat: initial commit

flake.nix

@@ -0,0 +1,29 @@
+{
+  description = "learning.rs";
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+  };
+  outputs = { nixpkgs, ... }:
+    let
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+      forAllSystems = f: nixpkgs.lib.genAttrs systems (system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+        in
+        f system pkgs);
+    in
+    {
+      devShells = forAllSystems (system: pkgs: {
+        default = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            nodejs_20
+          ];
+        };
+      });
+    };
+}