Layout Switcher (Tuda-Suda)

Fixes text typed in the wrong keyboard layout. Type ghbdtn, press the hotkey, and it becomes привет — with the layout switched for you.

A small native macOS utility in Swift. Nothing is sent anywhere: it reads the selection and replaces it locally, on your Mac.

What it does

• Converts the selected text between Latin and Cyrillic keyboard positions, both ways — the direction is detected, not configured.
• Switches the input source to match the result, so you keep typing normally.
• Reads the real layout tables from the system rather than hard-coding them, which matters at the edges: macOS puts Russian ё on the backslash key, and the Ukrainian layout swaps и and і relative to where Russian puts ы.
• Handles punctuation keys that carry letters — xnj,s really is one word.

Supported layouts: Russian and Ukrainian, against the Latin one you type with.

Requirements

macOS with Accessibility access granted — the utility has to see what you type in order to replace it. macOS will prompt on first run.

Build

SIGN_IDENTITY="Apple Development: Your Name (TEAMID)" ./build.sh
./install.sh

Both scripts read the signing identity from the environment; nothing is baked into the source. For a distributable build use build-store.sh with STORE_SIGN_IDENTITY set to a Developer ID Application identity.

Why the name

Tuda-suda — "there and back". The text goes one way, then the other.

Licence

MIT.