This is so cool! I made a map and if anyone could try it out that would be great :)
Here's the map link if you're interested:
Corroded Mines - P2lkPUNBM0RFREU2REY0RERDOTUmbWFwPVRVRlFYekE9
Copy the list of numbers and letters shown above and then go to the main menu in Brawl Craft. There should be a big yellow box that says "Enter map link...", paste the map link into there, and it should show up!