https://www.gnu.org/software/emacs/manual/html_node/emacs/Copyright-Assignment.html
tells me to inquire here about the copyright assignment.

I am a little confused.  It says we need to do it each time we submit
work.  I assume this means, once we cumulatively reach >=15 lines of sloc
we then retroactively give our copyright assignment to the work, but then
we need to reassign the copyright holding to fsf for future contribution?

I have started putting my pgp key on some keyservers.  Can I send it to a
gnu or fsf specific keyserver?  Should I just export it and send that to
you all here in the mailing list?
I assume then I just need to sign a text document saying whatever legal
magic we need with said pgp key and send it here?

Thank you for helping me figure this out :)