This looks handy…
macos
Stop Auto-Play Videos from Annoying You in Your Browser on macOS
Essential Electron
A tutorial for Electron, a library for building desktop apps with JavaScript, HTML & CSS, which can be run on Mac, Windows and Linux
Badassify your terminal and shell
Sound Control
Handy app that restores functionality for digital sound output, including volume control via the keyboard. It also lets you set per-app volume controls.