Changelog — HumanTyper

A full feel pass across the typing engine: runs ease in, the rhythm holds steady, and long runs taper like a person wrapping up.
Mistakes, corrections and pauses rebalanced to read effortless instead of random.
Run controls flow without friction — start, pause, resume, stop.

Typos now follow real finger anatomy: same-finger column slips dominate, mirror-hand slips are rare, and the wrong key is a weighted-random near miss around the intended one — usually touching, sometimes two keys off, rarely a wild fat-finger.
Keyboard-layout aware: slips (and typing itself) follow your active macOS layout — QWERTZ, AZERTY, Dvorak, Cyrillic — captured automatically at run start.
Post-error slowing: the two keystrokes after a mistake run measurably slower, decaying back to normal.
New slip class: perseverations (an earlier letter intrudes), plus number-row and punctuation neighbors.
Missed-Shift capitals — capitals sometimes land lowercase: caught instantly, repaired at the word's end, or missed entirely.
Doubled words — "the the", always caught and drummed away.

Redesigned main window: status header, editor card with drag-and-drop, delivery presets, reserved progress strip — no layout reflow mid-run.
Menu-bar mission control: live progress, WPM, ETA, pause/resume, and quick speed from the clock corner.
Pause & resume mid-run — paused time never counts against your stats.
Delivered-WPM calibration: the slider means what it says at every setting from 30 to 120.

Timing model rebuilt on published research: lognormal inter-key intervals, AR(1) burst inertia, digraph latencies, word tiers, warm-up and drift.
Error taxonomy: substitutions, omissions, transpositions, double-strikes — with immediate, delayed, and never-noticed corrections.
Curved mouse glides with Fitts's-law timing and endpoint scatter.
Secure Input auto-pause on password fields; stop-on-app-switch guard.