Extremely lightweight and has no dependencies.
The implementation is heavily based on an amazing project [olivierberten/KhmerConverter]
npm install khmer-unicode-converter
import { limon } from 'khmer-unicode-converter';
const result = limon("ភស្តុតាងអំពីពាក្យថា ខ្មែរ")
// => PsþútagGMBIBaküfa Exµr
Apache-2.0