I tested and fixed a minor issue for DynamicBoxer/Mama with Burning Crusade Classic (on PTR) and update the code and the build to take advantage of the new multiple TOC support. It's already for your multiboxing pleasure on curseforge

https://www.curseforge.com/members/mooreatv/projects

It should load on Shadowlands, Classic (today), Burning Crusade Classic (May 18th), Classic Era (May 18th) out of the box

Enjoy!