My two latest projects are utilities for Zerobrane Studio IDE. I haven't created any addons yet, but have made a couple really useful tools that serve the purpose of developing addons.
Both Lua and XML can be comfortably written from Zerobrane Studio so I highly recommend addon authors who aren't took set in their ways or are open to trying to new things to give it a shot. You won't be disappointed.
All work will always be available on my github profile at
https://github.com/Solvaring