diff --git a/nixos/.gitignore b/nixos/.gitignore
new file mode 100644
index 00000000..b2be92b7
--- /dev/null
+++ b/nixos/.gitignore
@@ -0,0 +1 @@
+result
diff --git a/nixos/packages/decsync-evolution/default.nix b/nixos/packages/decsync-evolution/default.nix
new file mode 100644
index 00000000..e191f09e
--- /dev/null
+++ b/nixos/packages/decsync-evolution/default.nix
@@ -0,0 +1,19 @@
+with import <nixpkgs> {};
+
+stdenv.mkDerivation rec {
+    name = "evolution-decsync";
+    version = "1.0.1";
+    src = fetchFromGitHub {
+        owner = "39aldo39";
+        repo = "Evolution-DecSync";
+        rev = "v1.0.1";
+        sha256 = "0cq5cvc9ywcbwrhj5nm9azjmjwc8hxfbw3r7bjqkjd0bwfnxk3g6";
+        fetchSubmodules = true;
+    };
+
+    buildInputs = [ libgee json-glib gnome3.evolution-data-server gnome3.evolution gtk3 webkitgtk glib libsecret libsoup];
+    nativeBuildInputs = [ meson ninja vala pkg-config ];
+    configurePhase = "meson build --prefix=$out";
+    buildPhase = "ninja -C build";
+    installPhase = "ninja -C build install";
+}
\ No newline at end of file