Timelines were already implemented as an extension but they don't actually take full use of the extension system. ThePlease sign in to post comments, or you can view this issue on GitHub.
Universal_Systemneeds moved over to the extension and instead be based on
Implementsinstead of inserting itself "into the object tier" as Josh put it to me. This will make it so that when the extension is disabled, objects will not be polluted with the locals associated with the timelines implementation. This will also fix a false-positive JDI parsing error that results from fundies SHELLmain guard.