chore: init-nix-local

Author: ryanbas21

.envrc

@@ -0,0 +1,8 @@
+# Ensure Nix is available even in non-login shells (what direnv uses)
+if [ -r /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh ]; then
+  . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
+elif [ -r "$HOME/.nix-profile/etc/profile.d/nix.sh" ]; then
+  . "$HOME/.nix-profile/etc/profile.d/nix.sh"
+fi
+
+use flake

.gitignore

@@ -82,4 +82,10 @@ test-output
 
 # Gemini local knowledge base files
 GEMINI.md
-**/GEMINI.md
+**/GEMINI.md
+
+# Nix and direnv
+.direnv/
+result*
+!.envrc
+

flake.lock

@@ -0,0 +1,39 @@
+{
+  description = "Development environment for the ping-javascript-sdk monorepo";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        # Get the pkgs set for the specific system
+        pkgs = import nixpkgs { inherit system; };
+
+        # Node.js version from your .node-version file
+        nodejs = pkgs.nodejs_22;
+      in
+      {
+        # The `devShell` is the development environment activated by `nix develop`
+        devShells.default = pkgs.mkShell {
+          # The packages available in the development shell.
+          packages = [
+            nodejs
+            pkgs.pnpm
+            pkgs.git
+          ];
+
+          shellHook = ''
+            # This hook runs when you enter the shell
+            echo "---"
+            echo "Welcome to the Nix development environment for ping-javascript-sdk!"
+            echo ""
+            echo "Node.js version: $(node --version)"
+            echo "pnpm version: $(pnpm --version)"
+            echo "---"
+          '';
+        };
+      });
+}