DevType

DevType is an open-source, privacy-first text expander and on-device AI writing assistant built natively in Swift and AppKit for macOS. Designed as a lightweight, subscription-free alternative to commercial snippet managers, DevType runs locally with zero telemetry.

Key Features: • Fast Typing Expansion: Sub-millisecond keyword expansion across any macOS application via a deterministic matching engine. • Touch ID Secure Vault: Protect sensitive snippets (such as API keys, recovery codes, and private credentials) with AES-GCM encryption gated behind Touch ID and the Secure Enclave. • Dynamic Macro Engine: Full support for dynamic dates, time math, clipboard variables, and cursor placement using Mustache and TextExpander macro syntax. • Local-First AI & Dictation: Perform on-device text transformations and speech dictation cleanup using Apple Foundation Models, MLX, Ollama, or local whisper.cpp. • Opt-In Cloud Adapter: An optional Gemini integration is available for users who prefer cloud-assisted models, protected by explicit, separate consent controls for audio and text payloads. • Native & Efficient: Zero Electron or web view overhead, ensuring minimal background memory usage and battery impact.