Libreboot was mentioned at the last Linux user group meeting in June. So worth looking in to if you want a free bios for your computer.
Peer tube is another service on the Fediverse. That allows you to upload video and share this with other. The difference is there are no adverts and fewer limitations on what you can upload. You still need to stay within the law though. Having used this I found it pretty straight forward and it transcoded my video in a few hours. As stated above this is all based on Free / Libre software.
Repl.it is a web based development environment. This gives you an instant IDE to develop your code and projects. It has recently been updated so that it is multiplayer by default so you can collaborate in real time with fellow developers / hackers, which should help increase productivity and or learning / teaching potential of this platform. Great work to the Development team.
Please see https://repl.it/ for more information and to sign up.