Source code for my YouTube tutorial
Tutorial version (only input, no editing):
https://maksimkorzh.github.io/korean-keyboard-widget/src/tutorial/hangul_keyboard.html
Korean text input:
https://maksimkorzh.github.io/korean-keyboard-widget/src/korean_input.html
Korean sentence builder:
https://maksimkorzh.github.io/korean-keyboard-widget/src/sentence_builder.html