diff --git a/README.md b/README.md
index c2c9074..e7bf83f 100644
--- a/README.md
+++ b/README.md
@@ -334,11 +334,6 @@ DetailLiveUpdateBadge(tick = tick)      // recomposed on every tick
 
 ## LayoutInspector screenshot gallery
 
-> Replace the placeholder paths below with screenshots captured in
-> **Android Studio → App Inspection → Layout Inspector** while the app is running.
-> Enable **Recomposition Highlighting** (the colour-coded recompose-count overlay)
-> to visualise exactly which composables recompose on each frame.
-
 ### 1 · Unoptimized scroll — recomposition storm
 
 ![Recomposition storm on UnoptimizedAnimatedListScreen](docs/screenshots/recomposition_unoptimized.png)
@@ -370,16 +365,6 @@ prevents cascading recompositions from `likeCount` changes.*
 
 ---
 
-### 4 · `graphicsLayer` node in the component tree
-
-![graphicsLayer node shown in Layout Inspector component tree](docs/screenshots/graphicslayer_tree.png)
-
-*The Layout Inspector's component tree shows a `GraphicsLayer` wrapper around each card.
-This is the draw-phase boundary: everything below it can update without causing the
-subtrees above it to recompose.*
-
----
-
 ### 5 · System trace — startup before and after
 
 ![System trace comparison: baseline vs optimised startup](docs/screenshots/systrace_startup_comparison.png)
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 7c2e0e9..fe2ff6b 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -57,7 +57,6 @@ baselineProfile {
 }
 
 dependencies {
-    implementation(project(":data"))
     implementation(project(":ui"))
 
     implementation(libs.androidx.core.ktx)
diff --git a/data/build.gradle.kts b/data/build.gradle.kts
deleted file mode 100644
index 52d78e4..0000000
--- a/data/build.gradle.kts
+++ /dev/null
@@ -1,23 +0,0 @@
-plugins {
-    alias(libs.plugins.android.library)
-}
-
-android {
-    namespace = "com.aquib.androidperflab.data"
-    compileSdk = 35
-
-    defaultConfig {
-        minSdk = 24
-    }
-
-    compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_11
-        targetCompatibility = JavaVersion.VERSION_11
-    }
-}
-
-dependencies {
-    implementation(libs.androidx.core.ktx)
-
-    testImplementation(libs.junit)
-}
diff --git a/data/src/main/AndroidManifest.xml b/data/src/main/AndroidManifest.xml
deleted file mode 100644
index b2d3ea1..0000000
--- a/data/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android" />
diff --git a/data/src/main/java/com/aquib/androidperflab/data/Repository.kt b/data/src/main/java/com/aquib/androidperflab/data/Repository.kt
deleted file mode 100644
index 7a88f4a..0000000
--- a/data/src/main/java/com/aquib/androidperflab/data/Repository.kt
+++ /dev/null
@@ -1,6 +0,0 @@
-package com.aquib.androidperflab.data
-
-interface Repository<T> {
-    suspend fun getAll(): List<T>
-    suspend fun getById(id: String): T?
-}
diff --git a/docs/screenshots/derived_state_detail.png b/docs/screenshots/derived_state_detail.png
new file mode 100644
index 0000000..fe37f51
Binary files /dev/null and b/docs/screenshots/derived_state_detail.png differ
diff --git a/docs/screenshots/recomposition_optimized.png b/docs/screenshots/recomposition_optimized.png
new file mode 100644
index 0000000..131c991
Binary files /dev/null and b/docs/screenshots/recomposition_optimized.png differ
diff --git a/docs/screenshots/recomposition_unoptimized.png b/docs/screenshots/recomposition_unoptimized.png
new file mode 100644
index 0000000..d64aa66
Binary files /dev/null and b/docs/screenshots/recomposition_unoptimized.png differ
diff --git a/docs/screenshots/systrace-startup-comparison.png b/docs/screenshots/systrace-startup-comparison.png
new file mode 100644
index 0000000..bbb5574
Binary files /dev/null and b/docs/screenshots/systrace-startup-comparison.png differ
diff --git a/settings.gradle.kts b/settings.gradle.kts
index cff0cff..b1eeda6 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -24,6 +24,5 @@ dependencyResolutionManagement {
 
 rootProject.name = "AndroidPerfLab"
 include(":app")
-include(":data")
 include(":ui")
 include(":benchmarks")