Asciinema is a free and open-source solution for recording terminal sessions and sharing them on the web.
Buy me a coffee is a service for online content creators that they may use to receive tips and donations to support their work.
MkDocs is a static site generator, used for building project documentation.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.