insects.ltd
Honeydew is an improved full-screen display for Spotify with a beautiful and customizable interface. It also includes an audio visualizer with animated frequency bars and waveforms. Logging in with Spotify is currently whitelist only.
Nectarine generates math-based visuals for any resolution, with customizable patterns and parameters. It allows exporting as JSON or HTML, and makes for a nice background.
Yen Toss 1967 is a physics-based simulation of a 100 yen coin being tossed. It returns either heads or tails, with the text being in a different font every time. It is also installable as a PWA.