Checks in rust are fast. In fact, you can 'cargo check' to run checks without actually compiling, and that will finish in less than half a second. Most editors

Checks in rust are fast. In fact, you can 'cargo check' to run checks without actually compiling, and that will finish in less than half a second. Most editors did this on save before LSP came along. For logic, this is fast enough because the type system catches enough mistakes and I don't need to run tests all the time. For UI though, a faster iteration cycle would be nice...