@fdavies93 neither the GPL nor the AGPL tell you how you can use/modify the program.
> They both require you to release source code of any modified versions to users, though the AGPL is stronger on who is considered a "user".
They assuredly do not require this. You are only obligated if you distribute the code.
FWIW, https://lists.gnu.org/archive/html/emacs-devel/2021-10/msg00806.html