Provides concrete guidance on building terminal emulators in Swift using SwiftTerm, including configuring terminal views, parsing ANSI/VT100 escape sequences, managing PTY connections, and optimizing text rendering performance. Use when the user is building a terminal app, console view, or xterm-compatible emulator in Swift, integrating SwiftTerm into a SwiftUI or UIKit/AppKit app, working with PTY or SSH stream bridging, handling keyboard input and escape sequences, or optimizing terminal rendering on macOS, iOS, or visionOS.