Adding flakes

Author: jeeftor

flake.lock

@@ -0,0 +1,28 @@
+{
+  description = "Development environment with Python 3.12 and Poetry";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }: 
+    flake-utils.lib.eachDefaultSystem (system: 
+      let 
+        pkgs = import nixpkgs { 
+          inherit system; 
+        }; 
+      in 
+      { 
+        devShell = pkgs.mkShell { 
+          buildInputs = [ 
+            pkgs.python312Full 
+            pkgs.poetry 
+          ];
+
+          shellHook = ''
+            export POETRY_VIRTUALENVS_IN_PROJECT=true
+          '';
+        };
+      });
+}