Not that I'm aware of. I believe I'm the first person to frame (and in a way "open source") a language program in this type of way. My perspective is a mixture of a lot of different things including my love for Diablo 1 (and its minimalism and simplicity) and 2 (Original, not Resurrected).

This is amazing! Consider potentially adding support for WebSpeech api to make it easier. Something like

    const voice = speechSynthesis.getVoices().filter(e => e.lang==='zh-HK').at(-1)
    const utterance = new SpeechSynthesisUtterance('你好')
    utterance.voice = voice
    speechSynthesis.speak(utterance)

Thanks for the suggestion. Take a look at my other reply above, but The Cantonese Scrolls is a project that needs to be able to run offline, directly in your web browser, with no network calls. I allow everyone to download the entire project and self study offline or self host it if they want. This serves as both a backup mechanism, and a defense mechanism against any potential government censorship by countries that don't want Cantonese to exist.

It's your project, I just wanted to point out that the code snippet the GP posted works offline, subject to the user having the voices installed. My `speechSynthesis.getVoices().filter(e => e.lang==='zh-HK')` returned nothing but it still tried to speak something anyway, even with the networking turned off on my computer

https://developer.mozilla.org/en-US/docs/Web/API/Web_Speech_...

I have been using Duolingo for a couple years to learn some Mandarin. Its resources are pretty good, if a bit dodgy here and there (some occasional weird pronunciations or translations).

I'm really excited about a Cantonese resource though. I have a few Cantonese-speaking friends and I would love to learn some myself!

Thank you :). Definitely feel free to use, download and share 粵卷 for your learning. I'll be continuing to make improvements to it over time. This is a life long project of mine so expect more improvements as my Cantonese develops.

I've seen weird tones, but IMHO the biggest limitation of Duolingo Mandarin is the lack of a traditional character option.

Pingtype isn't a game, but you might find it interesting. It does the pinyin and word-by-word romanisation of whatever text you put in.

https://pingtype.github.io

Came here to ask for the same thing.