diff --git a/.gitmodules b/.gitmodules
index 5e59f35..bf0d989 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -90,3 +90,7 @@
 	path = cosmic-wallpapers
 	url = https://github.com/pop-os/cosmic-wallpapers.git
 	branch = master
+[submodule "cosmic-idle"]
+	path = cosmic-idle
+	url = https://github.com/pop-os/cosmic-idle.git
+	branch = master
diff --git a/cosmic-idle b/cosmic-idle
new file mode 160000
index 0000000..08c1cf3
--- /dev/null
+++ b/cosmic-idle
@@ -0,0 +1 @@
+Subproject commit 08c1cf318e91831b6cbfd2c94d2fafbedb90919f
diff --git a/justfile b/justfile
index 231d007..beee813 100644
--- a/justfile
+++ b/justfile
@@ -11,6 +11,7 @@ build:
     {{ just }} cosmic-edit/build-release
     {{ just }} cosmic-files/build-release
     {{ just }} cosmic-greeter/build-release
+    {{ just }} cosmic-idle/build-release
     {{ just }} cosmic-launcher/build-release
     {{ just }} cosmic-notifications/build-release
     {{ make }} -C cosmic-osd all
@@ -35,6 +36,7 @@ install rootdir="" prefix="/usr/local": build
     {{ just }} rootdir={{rootdir}} prefix={{prefix}} cosmic-files/install
     {{ just }} rootdir={{rootdir}} prefix={{prefix}} cosmic-greeter/install
     {{ just }} rootdir={{rootdir}} prefix={{prefix}} cosmic-icons/install
+    {{ just }} rootdir={{rootdir}} prefix={{prefix}} cosmic-idle/install
     {{ just }} rootdir={{rootdir}} prefix={{prefix}} cosmic-launcher/install
     {{ just }} rootdir={{rootdir}} prefix={{prefix}} cosmic-notifications/install
     {{ make }} -C cosmic-osd install DESTDIR={{rootdir}} prefix={{prefix}}
@@ -73,6 +75,7 @@ clean:
     rm -rf cosmic-edit/target
     {{ just }} cosmic-files/clean
     rm -rf cosmic-greeter/target
+    {{ just }} cosmic-idle/clean
     rm -rf cosmic-launcher/target
     rm -rf cosmic-panel/target
     rm -rf cosmic-notifications/target