Great points! I’ve also done the same. Tried using just vim for some time, but it was too much of a hassle. Now I use WebStorm with vim keybindings and it works great. Even CodeSandbox has it. The only downside is that StackBlitz doesn’t support it and I sometimes use them.
Isn’t “mil milhões” the proper term in the long scale? “Bilião” would be equivalent to the short-scale trillion, e.g., “NVidia vale $4 biliões”, which is equivalent to “NVidia is worth $4 trillion”.