It sounds like you're looking for information on how to , but you've asked for a "solid paper" on it.
Since Marco is a third-party app, it is . You must "sideload" the APK file. Step-by-Step Instructions: Download Marco apk
Many versions allow users to download content directly to their device. It sounds like you're looking for information on
Unlike subscription-based services, Marco typically offers its content for free. 3. How to Download and Install Download Marco apk
Go to your device Settings > Security (or Privacy ) and toggle on "Install apps from unknown sources."