All tests run on an 8-year-old MacBook Air. All results from shipping 7 Mac apps as a solo developer. No sponsored opinion. The first Tauri app I shipped had inconsistent error handling. Some commands returned strings. Some panicked. Some silently swallowed errors. Here's the pattern I settled on after 7 apps. The problem with naive error handling Tauri commands return Result where E must implement serde::Serialize. The temptation is to just return String for errors: rust#[tauri::command] fn do_something() -> Result { some_operation().map_err(|e| e.to_string()) } This works. It's also a mess at scale. The frontend gets an untyped string. You can't match on error types. Logging is inconsistent. Error messages are whatever .to_string() produces.…