Bootstrapping a project like this is a daunting task.
But we are where we are.
I am almost certainly not the right person to manage this, but I believe this needs to be done enough to try and get the ball rolling.
I've setup https://codeberg.org/basebrowserproject/organization/issues/1 as a place to start to gather notes/issues/ideas and connect people - if you have some skills or any other ability to help, and want to help, then get in touch.