AppImage for macOS switchers

This page lists the AppImage terms to its macOS equivalents. It should help macOS to Linux swtichers to "get" AppImage concepts quickly.

AppImage concept	Rough macOS equivalent
.AppImage file	.app inside a .dmg file that mounts itself automatically when executed
.AppDir directory	.app directory
.desktop file	Info.plist file
*.metainfo.xml file	Info.plist file (more elaborate version thereof)
usr/ inside the AppDir	Resources/ inside the .app
AppImageUpdate	Sparkle Framework
No direct equivalent, but update information	Sparkle appcast
Optional appimaged daemon	Launch Services to register applications in the system (e.g., MIME types, icons, etc.)
No direct equivalent, but https://github.com/appimage/appimage.github.io central directory of available AppImages	Mac App Store