Only feedback I'd have is explaining a bit more about rebar, I saw it on your brew installs but didn't know what it was (Erlang build tool) and why you needed to install it separately to Gleam - can you build Gleam without it?
Yeah, it's a build tool in erlang, tbh I think if you just do brew install gleam it will install dependencies itself, I'll double check and update the article
but during gleam development you don't need to interact with rebar3 directly