diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..4b7dbfa
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1714763106,
+        "narHash": "sha256-DrDHo74uTycfpAF+/qxZAMlP/Cpe04BVioJb6fdI0YY=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "e9be42459999a253a9f92559b1f5b72e1b44c13d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..043b079
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,36 @@
+{
+  description = "Projet de semantique de L3";
+
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          config = { allowUnfree = true; };
+          inherit system;
+        };
+        ocamlLibs = with pkgs.ocamlPackages; [
+          findlib
+          zarith
+          menhir
+          menhirLib
+          odoc
+          utop
+          ocamlformat_0_26_0
+        ];
+      in
+      {
+        devShell = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            gnumake
+            dune_3
+            ocaml
+            graphviz
+          ] ++ ocamlLibs;
+        };
+      });
+}