Desktop overview - Overlay

Overlay Desktop is the Electron macOS client for Overlay. It provides voice input, chat, notes, files, and permissioned agent operations on Apple Silicon.

Surfaces

Surface	Role
Main / overlay windows	App shell, settings, launcher
Chat	Permissioned host tools + hosted models
Notebook	Local notes with optional cloud sync
Browser	Interactive browsing; agent browser is isolated
Transcription	Local and/or cloud speech-to-text

Processes

Main — trusted host capabilities, IPC, Keychain-backed secrets, policy.
Preload — narrow typed bridge (window.bridge only).
Renderer — React UI; no Node privileged APIs.

Source

Public repository: LayerNorm/overlay-desktop
Website: getoverlay.io
Download (after Gate B): getoverlay.io/download

Hosted authentication, model policy, entitlements, billing, and usage accounting remain server-authoritative on Overlay Server.