leapcast

Chromecast is completely closed-source, I'd argue against buying into that ecosystem. Nymphcast [1] is an alternative, but wouldn't be compatible with existing clients, since the protocol is different. Miraclecast [2] is an implementation of miracast/wi-fi display that runs on Linux. There is also a myriad of alternatives: vnc, raspicast, etc. Leapcast [3] used to be an implementation of what you want (while using chrome as a black box). There are some implementations of airplay servers. And lastly, a lot of media players implement some way of playing on one another (vlc, kodi, jellyfin, plex). Funnily, you might just be interested in UPNP and DLNA. Support for these is quite robust, but it tends to disappear on newer devices (to the benefit of proprietary solutions like chromecast and airplay). [1]: http://nyanko.ws/product_nymphcast.php

Leapcast(https://github.com/dz0ny/leapcast), nodecast are both on the way becoming the replacement for CC. All we need is someone to port video acceleration to chromium browser. :)

https://github.com/dz0ny/leapcast http://www.dial-multiscreen.org/

Presentation casting is also a potential game changer for Chromecast. I work in an academic environment and we are forever struggling with accommodating presentation interfaces - HDMI/DVI/VGA/Thuderbolt/etc ad nauseum. The thought that a presenter could discover a Chromecast receiver and make a presentation directly to a connected projector via a Chrome browser tab could save us many kilo$ in hardware and support. This might be even more powerful if the reciever can be implimented in software: https://github.com/dz0ny/leapcast