Will I be able to install/sideload native Android apps on Puffin OS?
Puffin OS is based on AOSP. However, apps that depend on Google Play Framework will not be supported.
It is possible to preload some primitive Android apps on Puffin OS as long as they work with AOSP without the Google Play Framework. We have currently tested WhatsApp, LINE Lite, Telegram, Messenger Lite with success.
If you must sideload a native Android app on Puffin OS, it is possible to do so via adb commands.