Added a nix flake

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -5,6 +5,7 @@
 /roles/**/files/scratchpad
 .DS_Store
 .python-version
+flake.lock
 
 # ignore roles pulled by ansible-galaxy
 /roles/galaxy/*

flake.nix

@@ -0,0 +1,19 @@
+{
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+
+  outputs = { self, nixpkgs, ... }:
+    let
+      pkgs = import nixpkgs { system = "x86_64-linux"; };
+    in
+    {
+      devShell.x86_64-linux = pkgs.mkShell {
+        buildInputs = with pkgs; [
+          just
+          python311Packages.ansible-core
+          python311Packages.passlib
+        ];
+        LC_ALL = "C.UTF-8";
+        LC_CTYPE = "C.UTF-8";
+      };
+    };
+}