In the same spirit as [login to view URL] we want to create a site to download SRT files from Youtube videos. We just need to use the youtube-dl library.
In terms of languages, we accept a development in Ruby On Rails or Node.js.
The design of the site is ready. There will be 2 views to integrate.
1 - You go on [login to view URL]
2 - You're redirect to [login to view URL]
3 - You have the full language list available for the video
4 - You can download the SRT or a TXT format from the result page