Software Engineer at Boldvoice here, also learning Mandarin. I've been told my Chinese accent is awful due in large part to misuse of tones and overemphasizing

Software Engineer at Boldvoice here, also learning Mandarin. I've been told my Chinese accent is awful due in large part to misuse of tones and overemphasizing articles like 了. We'd love to build something for all languages but are focusing on just users learning english right now.