Keyboard layouts I made for Unexpected Keyboard (https://github.com/Julow/Unexpected-Keyboard)
- Go to the file of the keyboard layout you want to install (for example, https://github.com/EGYT5453/ukl/blob/main/ISVcyr.xml);
- Copy the contents of the file into the clipboard;
- Go to the settings menu of Unexpected Keyboard;
- Press "Add an alternate layout";
- Choose "Custom layout";
- Select all the text in the window (you can do that by pressing Ctrl+A) and paste the contents of the clipboard (Ctrl+V).