As the script is now the text will be display at the middle. But can easily modified to start on the left side. This code shows how to use it as a terminal with C64 font and C64 color theme. With a change of background and font, you should be able to mimic a typewriter.
The text displayed are limited to lower case english alphabet. This is because of the font sprite sheet I made. You can easily modify this too.
Article link: https://soltveit.org/unity-typewriter-effect/
YouTube link: https://youtu.be/yywHXCvZ5Us