Show HN: Duolingo-Like Exercises and Pronunciation Practice on YouTube

Hi HN,

I thought it would be much cooler to learn languages with content that actually interests you.

Find a video on Youtube that interests you (subtitles required) and you'll see a box with the captions, where you can select text and see the translation. From there you can start the pronunciation practice and save the word/phrase as a flashcard.

In study mode you get Duolingo-like exercises that are generated by ChatGPT.

- Demo of the pronunciation practice: https://youtu.be/TWqAeNkb5No

- AI exercises demo: https://youtu.be/nvgVzh32nT0

Here is the video that I used for the demo (Spanish): https://www.youtube.com/watch?v=qunWdLHhiko

Another one (Chinese simplified): https://www.youtube.com/watch?v=WWPRk8pqIO4