As for ram usage, I currently have two huge java projects open, and three elm/frontend projects with all the shared packages opened as modules, and it's about 5GB. While it's certainly more than a text editor (still less than chrome lol), is it really so bad? My laptop got 64GB of ram and 34GB of those are sitting unused and 8GB is just cache. I actually prefer it to use more ram than having to recompute stuff or load from disk.