GitHub - marktext/marktext: 📝A simple and elegant markdown editor, available for Linux, macOS and Windows.
https://github.com/marktext/marktext?tab=readme-ov-file
📝A simple and elegant markdown editor, available for Linux, macOS and Windows. - marktext/marktext
Freedom, OS X Networking Freedom Software
http://www.ibiblio.org/fred/freedom
"Freedom is an application that disables wireless and ethernet networking on an Apple computer for up to three hours at a time." Claims to require a reboot to re-enable networking early.