diff --git a/pkgs/applications/misc/clight/default.nix b/pkgs/applications/misc/clight/default.nix
new file mode 100644
index 000000000000..829fd4e12231
--- /dev/null
+++ b/pkgs/applications/misc/clight/default.nix
@@ -0,0 +1,57 @@
+{ lib, stdenv, fetchFromGitHub
+, dbus, cmake, pkgconfig, bash-completion
+, gsl, popt, clightd, systemd, libconfig
+, withGeoclue ? true, geoclue2
+, withUpower ? true, upower }:
+
+stdenv.mkDerivation rec {
+  pname = "clight";
+  version = "3.1";
+
+  src = fetchFromGitHub {
+    owner = "FedeDP";
+    repo = "Clight";
+    rev = version;
+    sha256 = "0rzcr1x9h4llnmklhgzs9r7xwhsrw1qkqvfffkp8fs90nycaqx81";
+  };
+
+  # bash-completion.pc completionsdir=${bash-completion.out}
+  COMPLETIONS_DIR = "${placeholder "out"}/share/bash-completions/completions";
+  # dbus-1.pc has datadir=/etc
+  SESSION_BUS_DIR = "${placeholder "out"}/share/dbus-1/services";
+
+  postPatch = ''
+    sed -i "s@/usr@$out@" CMakeLists.txt
+    sed -i "s@/etc@$out\0@" CMakeLists.txt
+    sed -i "s@pkg_get_variable(COMPLETIONS_DIR.*@set(COMPLETIONS_DIR $COMPLETIONS_DIR)@" CMakeLists.txt
+    sed -i "s@pkg_get_variable(SESSION_BUS_DIR.*@set(SESSION_BUS_DIR $SESSION_BUS_DIR)@" CMakeLists.txt
+  '';
+
+  nativeBuildInputs = [
+    dbus
+    cmake
+    pkgconfig
+    bash-completion
+  ];
+
+  buildInputs = with lib; [
+    gsl
+    popt
+    upower
+    clightd
+    systemd
+    geoclue2
+    libconfig
+  ] ++ optional withGeoclue geoclue2
+    ++ optional withUpower upower;
+
+  meta = with lib; {
+    description = "A C daemon that turns your webcam into a light sensor";
+    homepage = https://github.com/FedeDP/Clight;
+    platforms = platforms.linux;
+    license = licenses.gpl3;
+    maintainers = with maintainers; [
+      eadwu
+    ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5a89d9cb92b1..3cfb7b5e5059 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -17335,6 +17335,8 @@ in
 
   cligh = python3Packages.callPackage ../development/tools/github/cligh {};
 
+  clight = callPackage ../applications/misc/clight { };
+
   clightd = callPackage ../applications/misc/clight/clightd.nix { };
 
   clipgrab = qt5.callPackage ../applications/video/clipgrab { };