There are 2 repositories under carpalx topic.
Keyboard Layout Optimizer for Thai layouts
The QGMLWY keyboard layout modified for Icelandic language use
Unix settings for emulating QWERTY command keystrokes with alternate keyboard layouts
Carpalx keyboard layouts for macos, including "option keys" supporting the full range of special characters on macOS.
Carpalx's QGMLWY keyboard layout for Spanish LATAM Keyboard (Windows)