siteinspire is a showcase of the finest web and interactive design.
godly provides good web design inspiration from all over the internet. (mostly very "active" and bouncy stuff)
Driver.js is light-weight, no-dependency, vanilla JavaScript engine to drive the user's focus across the page
bun.sh is an all-in-one JavaScript runtime & toolkit designed for speed, complete with a bundler, test runner, and Node.js-compatible package manager.
Flipper Zero is an open-source, portable multi-tool for pentesters and geeks in a toy-like body (HN thread)
free-for.dev — A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
hue.tools — an open source toolbox for colors