diff --git a/Cargo.lock b/Cargo.lock
index 8e5595a..54d57f5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -396,6 +396,12 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
+[[package]]
+name = "indoc"
+version = "2.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b248f5224d1d606005e02c97f5aa4e88eeb230488bcc03bc9ca4d7991399f2b5"
+
 [[package]]
 name = "inout"
 version = "0.1.3"
@@ -490,6 +496,15 @@ version = "2.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
 
+[[package]]
+name = "memoffset"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "488016bfae457b036d996092f6cb448677611ce4449e970ceaf42695203f218a"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "merge"
 version = "0.1.0"
@@ -550,6 +565,12 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a74f2cda724d43a0a63140af89836d4e7db6138ef67c9f96d3a0f0150d05000"
 
+[[package]]
+name = "once_cell"
+version = "1.20.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "945462a4b81e43c4e3ba96bd7b49d834c6f61198356aa858733bc4acf3cbe62e"
+
 [[package]]
 name = "opaque-debug"
 version = "0.3.0"
@@ -602,6 +623,12 @@ dependencies = [
  "universal-hash",
 ]
 
+[[package]]
+name = "portable-atomic"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "280dc24453071f1b63954171985a0b0d30058d287960968b9b2aca264c8d4ee6"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.17"
@@ -651,6 +678,69 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "pyo3"
+version = "0.23.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57fe09249128b3173d092de9523eaa75136bf7ba85e0d69eca241c7939c933cc"
+dependencies = [
+ "cfg-if",
+ "indoc",
+ "libc",
+ "memoffset",
+ "once_cell",
+ "portable-atomic",
+ "pyo3-build-config",
+ "pyo3-ffi",
+ "pyo3-macros",
+ "unindent",
+]
+
+[[package]]
+name = "pyo3-build-config"
+version = "0.23.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1cd3927b5a78757a0d71aa9dff669f903b1eb64b54142a9bd9f757f8fde65fd7"
+dependencies = [
+ "once_cell",
+ "target-lexicon",
+]
+
+[[package]]
+name = "pyo3-ffi"
+version = "0.23.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dab6bb2102bd8f991e7749f130a70d05dd557613e39ed2deeee8e9ca0c4d548d"
+dependencies = [
+ "libc",
+ "pyo3-build-config",
+]
+
+[[package]]
+name = "pyo3-macros"
+version = "0.23.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91871864b353fd5ffcb3f91f2f703a22a9797c91b9ab497b1acac7b07ae509c7"
+dependencies = [
+ "proc-macro2",
+ "pyo3-macros-backend",
+ "quote",
+ "syn 2.0.79",
+]
+
+[[package]]
+name = "pyo3-macros-backend"
+version = "0.23.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43abc3b80bc20f3facd86cd3c60beed58c3e2aa26213f3cda368de39c60a27e4"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "pyo3-build-config",
+ "quote",
+ "syn 2.0.79",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.37"
@@ -871,6 +961,7 @@ dependencies = [
  "base64",
  "log",
  "merge",
+ "pyo3",
  "rand",
  "serde",
  "transpose",
@@ -932,6 +1023,12 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "target-lexicon"
+version = "0.12.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
+
 [[package]]
 name = "termcolor"
 version = "1.3.0"
@@ -998,6 +1095,12 @@ version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
 
+[[package]]
+name = "unindent"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7de7d73e1754487cb58364ee906a499937a0dfabd86bcb980fa99ec8c8fa2ce"
+
 [[package]]
 name = "universal-hash"
 version = "0.5.1"
diff --git a/devenv.nix b/devenv.nix
index 93db791..4315390 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -1,14 +1,20 @@
 { pkgs, ... }:
 
 {
-  # https://devenv.sh/basics/
-  # env.GREET = "devenv";
 
   packages = [
 
     # dev tools
     pkgs.samply # code profiler
 
+    # generate python classes  from rust code (for AI training)
+    pkgs.maturin
+    # required to manually install generated python module in local venv
+    pkgs.python312Packages.pip
+
+    # required by python numpy (for AI training)
+    pkgs.libz
+
     # for bevy
     pkgs.alsaLib
     pkgs.udev
@@ -38,14 +44,26 @@
 
   ];
 
-  # enterShell = ''
-  #   hello
-  #   git --version
-  # '';
+  enterShell = ''
+    PYTHONPATH=$PYTHONPATH:$PWD/.devenv/state/venv/lib/python3.12/site-packages
+  '';
 
   # https://devenv.sh/languages/
   languages.rust.enable = true;
 
+
+  # for AI training
+  languages.python = {
+    enable = true;
+    uv.enable = true;
+    venv.enable = true;
+    venv.requirements = "
+      gym
+      numpy
+      stable-baselines3
+    ";
+  };
+
   # https://devenv.sh/scripts/
   # scripts.hello.exec = "echo hello from $GREET";
 
diff --git a/justfile b/justfile
index 8fe5fb7..caf5ef5 100644
--- a/justfile
+++ b/justfile
@@ -14,3 +14,6 @@ profile:
   echo '1' | sudo tee /proc/sys/kernel/perf_event_paranoid
   cargo build --profile profiling
   samply record ./target/profiling/client_cli --bot dummy,dummy
+pythonlib:
+  maturin build -m store/Cargo.toml --release
+  pip install --no-deps --force-reinstall --prefix .devenv/state/venv target/wheels/*.whl
diff --git a/store/Cargo.toml b/store/Cargo.toml
index e0e6195..9951a03 100644
--- a/store/Cargo.toml
+++ b/store/Cargo.toml
@@ -5,11 +5,18 @@ edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
+[lib]
+name = "trictrac"
+# "cdylib" is necessary to produce a shared library for Python to import from.
+crate-type = ["cdylib"]
+
 [dependencies]
 base64 = "0.21.7"
 # provides macros for creating log messages to be used by a logger (for example env_logger)
 log = "0.4.20"
 merge = "0.1.0"
+# generate python lib to be used in AI training
+pyo3 = { version = "0.23", features = ["extension-module", "abi3-py38"] }
 rand = "0.8.5"
 serde = { version = "1.0", features = ["derive"] }
 transpose = "0.2.2"
diff --git a/store/pyproject.toml b/store/pyproject.toml
new file mode 100644
index 0000000..55c3aff
--- /dev/null
+++ b/store/pyproject.toml
@@ -0,0 +1,10 @@
+
+[build-system]
+requires = ["maturin>=1.0,<2.0"]
+build-backend = "maturin"
+
+[tool.maturin]
+# "extension-module" tells pyo3 we want to build an extension module (skips linking against libpython.so)
+features = ["pyo3/extension-module"]
+# python-source = "python"
+# module-name = "trictrac.game"
diff --git a/store/python/test.py b/store/python/test.py
new file mode 100644
index 0000000..f300392
--- /dev/null
+++ b/store/python/test.py
@@ -0,0 +1,9 @@
+import trictrac
+
+game = trictrac.TricTrac()
+print(game.get_state())  # "Initial state"
+
+moves = game.get_available_moves()
+print(moves)  # [(0, 5), (3, 8)]
+
+game.play_move(0, 5)
diff --git a/store/src/engine.rs b/store/src/engine.rs
new file mode 100644
index 0000000..6c45d50
--- /dev/null
+++ b/store/src/engine.rs
@@ -0,0 +1,42 @@
+//! # Expose trictrac game state and rules in a python module
+use pyo3::prelude::*;
+use pyo3::types::PyTuple;
+
+#[pyclass]
+struct TricTrac {
+    state: String, // Remplace par ta structure d'état du jeu
+}
+
+#[pymethods]
+impl TricTrac {
+    #[new]
+    fn new() -> Self {
+        TricTrac {
+            state: "Initial state".to_string(),
+        }
+    }
+
+    fn get_state(&self) -> String {
+        self.state.clone()
+    }
+
+    fn get_available_moves(&self) -> Vec<(i32, i32)> {
+        vec![(0, 5), (3, 8)] // Remplace par ta logique de génération de coups
+    }
+
+    fn play_move(&mut self, from_pos: i32, to_pos: i32) -> bool {
+        // Ajoute la logique du jeu ici
+        println!("Move... from {} to {}", from_pos, to_pos);
+        true
+    }
+}
+
+/// A Python module implemented in Rust. The name of this function must match
+/// the `lib.name` setting in the `Cargo.toml`, else Python will not be able to
+/// import the module.
+#[pymodule]
+fn trictrac(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_class::<TricTrac>()?;
+
+    Ok(())
+}
diff --git a/store/src/lib.rs b/store/src/lib.rs
index 58a5727..03b85a7 100644
--- a/store/src/lib.rs
+++ b/store/src/lib.rs
@@ -16,3 +16,6 @@ pub use board::CheckerMove;
 
 mod dice;
 pub use dice::{Dice, DiceRoller};
+
+// python interface "trictrac_engine" (for AI training..)
+mod engine;