Swift/XCode (guess I had unrealistically high expectations, the whole experience was just downright infuriating), Seed 7 (somewhat exotic, I liked it but had some build problems on Mac), Groovy, FreePascal/Lazarus, D+VScode (almost), Python+VSCode. Embarrassing perhaps, but I ended up doing my prototype in PHP, debugging on my Mac was not fun but its awesome documentation kept on saving the day.