good for someone learning to code perhaps
No way of integrating the tooling needed for actual coding. There's no rye, ruff, pyright. There's no Rust at all and if there were there seems like there'd be no way of adding cargo-expand or other tools. It's quite nice looking for what it is, but writing code without tools is suitable for anything serious imo. (Though I know there are a few people out there that still write in txt files. They might find this sufficient.)