diff --git a/app/src/main/java/awais/instagrabber/utils/AppExecutors.kt b/app/src/main/java/awais/instagrabber/utils/AppExecutors.kt
index f923daa2..a1a0c8ec 100644
--- a/app/src/main/java/awais/instagrabber/utils/AppExecutors.kt
+++ b/app/src/main/java/awais/instagrabber/utils/AppExecutors.kt
@@ -29,6 +29,7 @@ import java.util.concurrent.Executors
  * Grouping tasks like this avoids the effects of task starvation (e.g. disk reads don't wait behind
  * webservice requests).
  */
+// TODO replace with kotlin coroutines and Dispatchers
 object AppExecutors {
     val diskIO: Executor = Executors.newSingleThreadExecutor()
     val networkIO: Executor = Executors.newFixedThreadPool(3)
diff --git a/app/src/main/java/awais/instagrabber/utils/Debouncer.java b/app/src/main/java/awais/instagrabber/utils/Debouncer.java
index 063e9f46..adecc66b 100644
--- a/app/src/main/java/awais/instagrabber/utils/Debouncer.java
+++ b/app/src/main/java/awais/instagrabber/utils/Debouncer.java
@@ -6,6 +6,7 @@ import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
 
+// TODO replace with kotlinx-coroutines debounce
 public class Debouncer<T> {
     private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
     private final ConcurrentHashMap<T, TimerTask> delayedMap = new ConcurrentHashMap<>();