From d68ac2f4ceb11f61a633302e5cfb082cfbcd8da6 Mon Sep 17 00:00:00 2001
From: Gregory Bednov <gregorbednov@gmail.com>
Date: Sat, 29 Aug 2026 08:19:16 +0300
Subject: [PATCH] flake.nix added

---
 flake.lock | 27 +++++++++++++++++++++++++++
 flake.nix  | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..76e7ff9
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1787814960,
+        "narHash": "sha256-PYZq1qzCJXC2zGI0mH07vrZBsw6DRBAOX0jN1pPtqOQ=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "c27cdad491a991b11ed731760aa2ef8db0cb0410",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..222b19d
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,33 @@
+{
+  description = "Surface relation extractor for OCCT";
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixpkgs-unstable";
+  };
+
+  outputs =
+    { self, nixpkgs }:
+    let
+      system = "x86_64-linux";
+      pkgs = nixpkgs.legacyPackages.${system};
+    in
+    {
+      devShells.${system}.default = pkgs.mkShell {
+        buildInputs = with pkgs; [
+          cmake
+          opencascade-occt
+          clang
+        ];
+      };
+      defaultPackage.x86_64-linux = pkgs.stdenv.mkDerivation {
+        pname = "OcctSurfacer";
+        version = "1.0.0";
+        src = ./.;
+        nativeBuildInputs = [
+          pkgs.cmake
+          pkgs.opencascade-occt
+        ];
+
+        cmakeFlags = [ "-DBUILD_TESTING=OFF" ];
+      };
+    };
+}