Similar to Automator

Apple Books

Apple Push Notification service

Aqua (user interface)

Audio MIDI Setup

Audio Units

AVFoundation

BootX (Apple)

Carbon (API)

Classic Environment

Core Animation

Core Audio

Core Data

Core Foundation

Core Image

Core Text

Dashcode

DVD Player (macOS)

Enterprise Objects Framework

FileVault

Font Book

GNUstep

Grapher

IMessage

Inkwell (Macintosh)

Interface Builder

ISync