Add invidious

Closes #1708

README.md

@@ -1001,6 +1001,7 @@ See also <https://en.wikipedia.org/wiki/List_of_streaming_media_systems>, <https
 - [crtmpserver](https://packages.debian.org/stable/crtmpserver) - High performance RTMP/RTSP streaming server. `GPL-3.0` `C++`
 - [CyTube](https://github.com/calzoneman/sync) - CyTube is a web application providing media synchronization, chat, and more for an arbitrary number of channels. ([Demo](http://cytu.be)) `MIT` `Nodejs`
 - [Hellowlol HTPC Manager fork](https://github.com/Hellowlol/HTPC-Manager) - Fully responsive interface to manage all your favorite media on your HTPC. `MIT` `Python`
+- [Invidious](https://github.com/omarroth/invidious/) - `⚠` Invidious is an alternative front-end to YouTube. ([Demo](https://invidio.us/)) `AGPL-3.0` `Crystal`
 - [Myflix](https://github.com/pastapojken/Myflix) - Self-hosted, super lightweight Netflix alternative. `MIT` `Shell`
 - [Oddworks](https://gitlab.com/oddnetworks/oddworks/core) - Oddworks is an open source video distribution platform built to destroy the barriers to streaming television with SDKs for Roku, Apple iOS/tvOS, Google Android, and Amazon FireTV. `MIT` `Nodejs`
 - [Open Streaming Platform](https://openstreamingplatform.com) - Self-Hosted alternative to Twitch and Youtube Live for live and on-demand video streaming. ([Source Code](https://gitlab.com/Deamos/flask-nginx-rtmp-manager)) `MIT` `Python`