Brief

A developer built a custom email client for macOS, aiming for a streamlined experience similar to Superhuman but with more control over features. The app, initially developed with Codex and later refined using Factory, utilizes Gmail's API for core functions like labeling and filtering. Key features include a split inbox, rules, a command palette, and an undo-send option, with a focus on performance improvements to eliminate lag by optimizing API calls and implementing background data refreshing. AI