add Stretto

README.md

@@ -972,6 +972,7 @@ See also <https://en.wikipedia.org/wiki/List_of_streaming_media_systems>, <https
 - [Polaris](https://github.com/agersant/polaris) - Music browsing and streaming application optimized for large music collections, ease of use and high performance. `MIT` `Rust`
 - [Snapcast](https://github.com/badaix/snapcast) - Synchronous multiroom audio server. `GPL-3.0` `C++`
 - [Sonerezh](https://www.sonerezh.bzh/) - Self-hosted, web-based application for stream your music, everywhere. ([Demo](https://www.sonerezh.bzh/demo/), [Source Code](https://github.com/sonerezh/sonerezh)) `GPL-3.0` `PHP`
+- [Stretto](https://github.com/benkaiser/stretto) - Music player with Youtube/Soundcloud import and iTunes/Spotify discovery. ([Demo](https://next.kaiserapps.com), [Clients](https://github.com/benkaiser/stretto-mobile-next)) `MIT` `Nodejs`
 - [Volumio](https://volumio.org/) - A free and open source linux distribution, designed and fine-tuned exclusively for music playback. ([Source Code](https://github.com/volumio/Volumio2)) `GPL-3.0` `NodeJS`
 
 ### Video Streaming