01
Your editor
In project chapters you build the system in your own IDE. Pick which editor the book should assume; the choice is remembered in your browser.
Editor
Current editor: Zed. Theory chapters run code in the in-browser Workbench, so no local setup is needed to follow along.
02
Rust edition
Which edition of Rust the in-browser Workbench compiles your code against. The book targets 2021; change it only if a chapter calls for it.
Edition
▾
Compiling against Rust 2021 edition.
03
Reset
Settings are kept in this browser for now; durable, account-backed storage arrives with the hosted Workbench.