From 271017e89f37d83427a593718c269c89eb319df7 Mon Sep 17 00:00:00 2001
From: mia <mia@kieler.cc>
Date: Mon, 23 Mar 2026 09:58:05 +0100
Subject: [PATCH] Development Shell

---
 .gitignore |  1 +
 flake.nix  | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 flake.nix

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..21d0b89
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.venv/
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..a8421e8
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,29 @@
+{
+  description = "Python env for HaFaS-Fumbling";
+
+  inputs.nixpkgs.url = github:nixos/nixpkgs;
+
+  outputs = { self, nixpkgs, ... }: let 
+    pipPackages = ''
+      pyhafas
+    '';
+    system = "x86_64-linux";
+  in {
+    devShells."${system}".default = let
+      pkgs = import nixpkgs { inherit system; };
+    in pkgs.mkShell {
+      buildInputs = [
+        pkgs.python312
+        pkgs.python312Packages.pip
+      ];
+      shellHook = ''
+        if [ ! -d ".venv" ]; then
+          python -m venv .venv
+        fi
+        source .venv/bin/activate
+        pip install ${pipPackages}
+        exec zsh || true
+      '';
+    };
+  };
+}