Add nix development shell

Signed-off-by: Colin Wilk <[email protected]>

shell.nix

@@ -0,0 +1,21 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+  name = "python-dev";
+
+  buildInputs = with pkgs; [
+    python311
+    zsh
+    poetry
+    fio
+  ];
+
+  shellHook = ''
+    export SHELL=$(which zsh)
+    echo "Welcome to the Python development environment"
+    echo "Python version: $(python3 --version)"
+    echo "Poetry version: $(poetry --version)"
+    echo "FIO version: $(fio -v)"
+    zsh
+  '';
+}