This script is a abugida and there is no need to write the letter a in the words And its based in miao (consonants) and canadian syllabics (vowels) and the latin (diacritics) and to type the virama you need to use the ' (apostrophe)
The edit (IGNORE THE EMAIL)
https://lingojam.com/edit/7a3dcda9c0bea56bf88d85ad2bc06e27