[BRLTTY] [Android] Going native BRLTTY and away from TalkBack?

[Vincent LE GOFF]

Hi everyone,

 From previous conversations, I've gathered that the main screen reader 
on Android, TalkBack, doesn't directly use BRLTTY to provide Braille, 
although it uses some bindings. My question, then, is whether it is 
possible to completely switch to BRLTTY and turn off TalkBack entirely. 
I'd prefer to switch to BRLTTY on Android if possible because:

- I don't need anything but Braille, but I need very good Braille;

- BRLTTY's on Android seems much more configurable than TalkBack (not 
surprising).

But I fail to find explanation on what I'm getting into. The main 
documentation I could find doesn't elaborate much on what I'd like to know:

- Can BRLTTY run without TalkBack at all, or does it need it?

- Can BRLTTY read the Android interface or just the console? 
Traditionally, BRLTTY was for the console, but I understand it became 
closer to a screen reader. Still, it's not its primary purpose and is 
often completed by a "real" screen reader. So this question overlaps the 
first one a bit I guess;

- Would BRLTTY support the same feature (read bluetooth, Braille API so 
same Braille displays) as TalkBack? The one I have (Brilliant) now uses 
a more standard Braille interface, so I guess it won't make a difference.

If the questions are good (they indicate I can turn away from TalkBack 
entirely), I'd appreciate if someone could:

- Indicate if I can turn BRLTTY on (is this automatic at restart, for 
instance, or do I need a gesture to do it);

- How to install it without creating conflicts with TalkBack (can I do 
it alone or do I need a sighted person to check the process)?

Thanks,

Vincent