Lots of high quality images, CC0

A collection of person skill files, interesting for reference

A collection of patterns/laws related to UX, some of them well known, some of them not so much, but really handy to have that.

A treasure trove of bike technical maintenance tips and reference.

A spec/collection of patterns for API design. It covers quite a few standard use cases, from simple to complex, which makes it a good reference when building something custom.

A collection of notes/courses covering linear algebra, calculus, leading to AI

The Generative AI Landscape - A Collection of Awesome Generative AI Applications - ai-collection/ai-collection: The Generative AI Landscape - A Collection of Awesome Generative AI Applications