Add Dune 3D

Lifted from nixpkgs-unstable, but with the most recent commit of Dune
3D.

hosts/Disco.nix

@@ -67,9 +67,12 @@
         gthumb
         gimp
         tenacity
+
         openscad
         freecad
         solvespace
+        (pkgs.callPackage ../packages/dune3d.nix {})
+
         vscodium
         marktext
         tor-browser-bundle-bin

packages/dune3d.nix

@@ -0,0 +1,65 @@
+{
+    cmake,
+    eigen,
+    fetchFromGitHub,
+    glm,
+    gobject-introspection,
+    gtkmm4,
+    lib,
+    libepoxy,
+    librsvg,
+    libspnav,
+    libuuid,
+    meson,
+    ninja,
+    opencascade-occt,
+    pkg-config,
+    python3,
+    gcc13Stdenv,
+    wrapGAppsHook,
+}:
+
+gcc13Stdenv.mkDerivation rec {
+    pname = "dune3d";
+    version = "84c1129";
+
+    src = fetchFromGitHub {
+        owner = "dune3d";
+        repo = "dune3d";
+        rev = "84c11294c38b20503f480765f7226500a834ee3c";
+        hash = "sha256-77V02mowDbZR2a42WDqzcwz+J4aY64yueDqPeVTpUCI=";
+    };
+
+    nativeBuildInputs = [
+        gobject-introspection
+        meson
+        ninja
+        pkg-config
+        wrapGAppsHook
+    ];
+    buildInputs = [
+        cmake
+        eigen
+        glm
+        gtkmm4
+        libepoxy
+        librsvg
+        libspnav
+        libuuid
+        opencascade-occt
+        (python3.withPackages (pp: [
+            pp.pygobject3
+        ]))
+    ];
+
+    env.CASROOT = opencascade-occt;
+
+    meta = with lib; {
+        description = "3D CAD application";
+        homepage = "https://dune3d.org";
+        license = licenses.gpl3Plus;
+        mainProgram = "dune3d";
+        platforms = platforms.linux;
+    };
+}
+