https://overthewire.org/wargames/ - he wargames offered by the OverTheWire community can help you to learn and practice security concepts in the form of fun-filled games. To find out more about a certain wargame, just visit its page linked from the menu on the left.
linuxupskillchallenge - A month-long course aimed at those who aspire to get Linux-related jobs in the industry - junior Linux sysadmin, DevOps-related work, and similar. Server focused and command line, but assumes essentially no prior knowledge, and starts off very gently - designed to be well-suited to a Windows or Apple person as well as those that already using Linux in some form.
All kinds of enulators! SNES, Sega, Playstations etc... Emulator - RetroArch, ROMs are easy to find all over the world wide web. Personally, I love PSP games, especially Patapon 3.
Other people's websites
melonking - cool and stylish site about imprtant topics
100r - they live on a... boat? And give guides about uch a way of living. I can make uch guides about going such way in mountains!
soon!
https://kwaamfan.haliya.net/ - interesting site filled with love for games, consoles, linux and web. Loved the style, resources and personality of this site