skyline/app/src/main/res/layout/main_activity.xml

<?xml version="1.0" encoding="utf-8"?>

<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

    <include layout="@layout/titlebar" />

    <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/app_list"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_behavior="@string/appbar_scrolling_view_behavior" />

    <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom|end"
            android:layout_margin="16dp"
            android:orientation="vertical">

        <com.google.android.material.floatingactionbutton.FloatingActionButton
                android:id="@+id/open_fab"
                style="@style/Widget.MaterialComponents.FloatingActionButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:padding="8dp"
                app:maxImageSize="26dp"
                app:srcCompat="@drawable/ic_open" />

        <com.google.android.material.floatingactionbutton.FloatingActionButton
                android:id="@+id/log_fab"
                style="@style/Widget.MaterialComponents.FloatingActionButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:padding="8dp"
                app:maxImageSize="26dp"
                app:srcCompat="@drawable/ic_log" />
    </LinearLayout>

</androidx.coordinatorlayout.widget.CoordinatorLayout>