More info about petitboot? - was {Re: Can grub be made to talk?}

[Richard Owlett <rowlett@cloud85.net>]

On 07/24/2019 01:40 AM, Samuel Thibault wrote:
> [snip] 
> - petitboot is an interesting approach: you boot a Linux kernel that
>    only runs petitboot, and there you can run a screen reader such as
>    brltty. That can then boot the real kernel for the targetted system.

I had never heard of petitboot.
The information at:
  https://packages.debian.org/buster/petitboot
  https://manpages.debian.org/buster/petitboot/petitboot.8.en.html
is just enough to tantalize.

It may be appropriate for a personal project.
I have a machine dedicated to multiple experimental Debian installs.
If I read the above links correctly, petitboot will allow me to chose 
any system installed on the primary drive or connected flash drives.

Suggested links?
Is there a petitboot related mailing list?
TIA