Show HN: Fumble – keybr, but it learns from everything you type (macOS)

Category: devtools

Tags: typing, macos, privacy, keyboard, adaptive-learning

Score: 7.8/10 (Innovation: 7, Technical: 8, Documentation: 9, Utility: 7)

Fumble is a macOS typing coach that passively monitors system-wide typing (without capturing characters) to build a personalized model of weak keys and transitions, then generates adaptive drills aimed at those weaknesses. It stands out for its privacy-conscious design, auditable exclusion of injected keystrokes, and coaching approach that avoids synthetic corpora. The project includes a full practice app with multiple modes and a CLI for inspecting captured data.

Target audience: developers, programmers, anyone who types frequently on macOS

Repository: https://fumble.alexmcconnell.ie · Swift · MIT · 1 stars

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