Also:

— “Sustainable Web Design” <https://sustainablewebdesign.org/>

— ”Other 'clubs'”: no-js.club, 1mb.club, 512kb.club, 250kb.club, 10kbclub.com, 1kb.club, js1k.com, js1024.fun

— “CSS Minecraft – written in 100% HTML/CSS with 0 javascript” <https://benjaminaster.com/css-minecraft/>

— “Low Tech – a solar-powered website” <https://solar.lowtechmagazine.com/>