[seeekr]

Rust is amazing for CLIs (Go potentially as well, too little experience with that personally!), but if you're already quite comfortable with JS & have existing investment in it for CLI or related code, then ´npx <tool> ...` while asking the user to install Node (or Bun) is an acceptable tradeoff in most cases. Updating via npm is also easy enough for users, though it's not self-updating of course, but basically no CLI will do that fully automatically for you. Not even Cloud SDK CLIs. And for good reason.