Migrate Room annotation processing to faster Kotlin-Symbol-Processing

per IDE suggestion, see also: https://developer.android.com/build/migrate-to-ksp

app/build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id "com.android.application"
     id "kotlin-android"
-    id "kotlin-kapt"
+    id 'com.google.devtools.ksp'
     id "com.mikepenz.aboutlibraries.plugin"
 }
 
@@ -24,10 +24,8 @@ android {
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
-        javaCompileOptions {
-            annotationProcessorOptions {
-                arguments += ["room.schemaLocation": "$projectDir/schemas".toString()]
-            }
+        ksp {
+            arg("room.schemaLocation", "$projectDir/schemas")
         }
     }
 
@@ -77,7 +75,7 @@ dependencies {
     implementation "androidx.work:work-runtime-ktx:$workmanager_version"
     implementation "androidx.room:room-runtime:$room_version"
     implementation "androidx.room:room-ktx:$room_version"
-    kapt "androidx.room:room-compiler:$room_version"
+    ksp "androidx.room:room-compiler:$room_version"
     implementation "com.mikepenz:aboutlibraries:$about_libraries_version"
     implementation "androidx.core:core-splashscreen:1.0.1"
 

build.gradle

@@ -21,6 +21,11 @@ buildscript {
     }
 }
 
+plugins {
+    // modern kotlin annotation support; replaces kapt: https://developer.android.com/build/migrate-to-ksp
+    id 'com.google.devtools.ksp' version '1.9.22-1.0.17' apply false
+}
+
 allprojects {
     repositories {
         google()