setup: add nix flake for dev env setup

"nix develop" to interactively entering the dev env.
"nix develop --command zig zen" to run command in dev env.

1 files changed, 19 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..ab93306
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,19 @@
+{
+  description = "Zig development environment";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs, ... }: let
+    system = "x86_64-linux";
+    pkgs   = import nixpkgs { inherit system; };
+  in {
+    devShells.${system}.default = pkgs.mkShell {
+      buildInputs = [
+        pkgs.zig
+        pkgs.zls
+      ];
+    };
+  };
+}