Hi Can-ned Food! You are correct that Nexus is no longer being used. We have been coordinating through discord and a few manual sheets as we are looking into using a new project management tool in our port to unreal, seeing as Nexus was 15 years old. Once we find the right tool we will be able to update the access and improve/expand coordination of tasks.
Thank you for checking in on this and in the meantime, feel free to ask me for help in getting to the right dev! I check my forum dms and discord pretty often.