Adjusting, reducing, increasing, customizing Android's volume.
Equalizer settings will be covered by an app, likely something like Volume+. The ones I tested were suspicious, so this will be a topic to research later.
This is separate from Developer Mode, and gets to the hardcore settings.
- Dial pad
An operating system most notably on mobile phones, but also found on media boxes.
Fundamentally flawed - It is tethered to Google in as many ways as they've made possible. From a time server, to internet traffic compression. From google play requiring an account requiring your verified phone number. From hoops to download and install software from their store. It's fucking awful.
Being able to plug an Android device in and access its storage device(s) within explorer.
coming later, perhaps
Replicant is a fully free Android distribution running on several devices, a free software mobile operating system putting the emphasis on freedom and privacy/security