diff --git a/build.nix b/build.nix
new file mode 100644
index 0000000..e404c8c
--- /dev/null
+++ b/build.nix
@@ -0,0 +1,2 @@
+with import <nixpkgs> {} ;
+callPackage ./. {}
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..60baa13
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,75 @@
+{ stdenv
+, callPackage
+, copyDesktopItems
+, fennel
+, fetchFromGitHub
+, fetchurl
+, glib-networking
+, gobject-introspection
+, gtk3
+, gnome3
+, lib
+, librsvg
+, lua53Packages
+, lua5_3
+, makeDesktopItem
+, makeWrapper
+, webkitgtk
+, writeText
+}:
+let pname = "dunlin";
+    lua = lua5_3.withPackages (ps: with ps; [
+      inspect
+      lgi
+      luafilesystem
+      luaposix
+      readline
+    ]);
+    fennel_ = lua.pkgs.fennel;
+    glib_networking_gio  = "${glib-networking}/lib/gio/modules";
+in stdenv.mkDerivation rec {
+  inherit pname;
+  fennel = fennel_;
+
+  version = "0.1";
+  src =./.;
+
+  GIO_EXTRA_MODULES = glib_networking_gio;
+
+  buildInputs = [
+    lua
+    gtk3
+    webkitgtk
+    gobject-introspection.dev
+    fennel
+    glib-networking
+  ];
+  nativeBuildInputs = [
+    lua
+    makeWrapper
+    copyDesktopItems
+  ];
+
+  makeFlags = [ "PREFIX=${placeholder "out"}" ];
+
+  desktopItems = [
+    (makeDesktopItem rec {
+      desktopName = "Just Browsing";
+      name = pname;
+      exec = pname;
+      categories = ["Network"] ;
+      # icon = ./just.png;
+      genericName = "Web browser";
+    })
+  ];
+
+  postInstall = ''
+    makeWrapper ${fennel}/bin/fennel \
+      $out/bin/${pname} \
+      --set GI_TYPELIB_PATH "$GI_TYPELIB_PATH" \
+      --prefix GIO_EXTRA_MODULES ":" "${glib_networking_gio}" \
+      --add-flags "--add-fennel-path $out/lib/just/?.fnl" \
+      --add-flags "--add-package-path $out/lib/just/?.lua" \
+      --add-flags "$out/lib/just/just.fnl"
+  '';
+}
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..22fc4b9
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,6 @@
+with import <nixpkgs> {} ;
+let just = callPackage ./. {};
+in just.overrideAttrs(o: {
+  nativeBuildInputs = o.nativeBuildInputs ++ [ pkgs.socat ];
+  JUST_HACKING = 1;
+})