Sup, creator of the Pokemon Double Emerald hack that's in your notable list (ty btw! Big ego boost even though I know that hack is rough around the edges)
Recently released alpha 2 of Double XY after 18 months wait (lol oops) and would love anyone interested to check it out and let me know if you have feedback. Trying to get as much as possible because coming up with interesting teams AND balancing levels is actually kinda hard.
Alpha is done up to Gym 4, good luck!
https://gbatemp.net/threads/wip-pokemon-double-xy-alpha-2-to-coumarine-city-complete.589372/ 