Hamburger Keyboard Gives One Hand the Whole Mac Keyboard

Field notes

The mirror pairs each reachable key with its counterpart on the far side of the keyboard; the demonstration shows "ttqe" resolving to "type." The site says the full engine considers word frequency, surrounding context, and locally learned vocabulary rather than resolving every word from frequency alone. It lists macOS 14 or later, left/right/automatic hand selection, practice drills, a 30-day fully featured trial, and a one-time $19 introductory purchase.