diff --git a/exprs/default.nix b/exprs/default.nix
index 8f01f93..ef5b3ee 100644
--- a/exprs/default.nix
+++ b/exprs/default.nix
@@ -8,6 +8,7 @@
       reposilite = pkgs.callPackage ./reposilite/derivation.nix {};
       enigma = pkgs.callPackage ./pkgs/enigma.nix {};
       vineflower = pkgs.callPackage ./pkgs/vineflower.nix {};
+      koi = pkgs.kdePackages.callPackage ./pkgs/koi.nix {};
 
       wine-discord-ipc-bridge = pkgs.callPackage ./pkgs/wine-discord-ipc-bridge.nix {
         inherit (pkgs.pkgsCross.mingw32) stdenv;
diff --git a/exprs/pkgs/koi.nix b/exprs/pkgs/koi.nix
new file mode 100644
index 0000000..0a68c5a
--- /dev/null
+++ b/exprs/pkgs/koi.nix
@@ -0,0 +1,28 @@
+{
+  stdenv,
+  fetchFromGitHub,
+  cmake,
+  ninja,
+  wrapQtAppsHook,
+  qtbase,
+  qtwayland,
+  kcoreaddons,
+  kwidgetsaddons,
+  kconfig,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  name = "koi";
+  version = "0.3.1";
+
+  src = fetchFromGitHub {
+    owner = "baduhai";
+    repo = "Koi";
+    rev = finalAttrs.version;
+    hash = "sha256-dhpuKIY/Xi62hzJlnVCIOF0k6uoQ3zH129fLq/r+Kmg=";
+  };
+
+  sourceRoot = "source/src";
+
+  nativeBuildInputs = [cmake ninja wrapQtAppsHook];
+  buildInputs = [qtbase qtwayland kcoreaddons kwidgetsaddons kconfig];
+})
diff --git a/programs/kde.nix b/programs/kde.nix
index cc2e7a5..5729447 100644
--- a/programs/kde.nix
+++ b/programs/kde.nix
@@ -1,8 +1,11 @@
-{pkgs, ...}: {
+{self, pkgs, ...}: {
   services.desktopManager.plasma6.enable = true;
 
   environment = {
-    systemPackages = with pkgs; [flameshot];
+    systemPackages = with pkgs; [
+      flameshot
+      self.packages.${pkgs.system}.koi
+    ];
 
     plasma6.excludePackages = with pkgs.kdePackages; [
       plasma-browser-integration