YEN

YEN is a GPU-accelerated terminal IDE for macOS built on Metal for 60FPS+ rendering, designed around a local-first, no-cloud philosophy. It ships with native on-device speech-to-text (no AI services), a built-in file browser, Gmail and Google Calendar clients, global chat rooms, and 72 curated themes — all without requiring an account or sending data to the cloud. YEN takes a terminal-first approach to IDE workflows, adding editing and project capabilities around the terminal rather than bolting a terminal onto an editor.

• GPU Rendering — Built on Metal for 60FPS+ performance; no Electron, no web views, lightweight install.
• Native Speech-to-Text — Hold Option + Space in any macOS app; audio never leaves your Mac; supports 50+ languages via macOS Speech Recognition.
• Terminal IDE Workflows — yen ide commands cover LSP lifecycle, project search, PR review, devcontainer control, encrypted terminal sharing, verification gates, and agent adapter orchestration.
• 72 Curated Themes — Live preview and instant apply via Cmd + ,; comfort settings (font, cursor, opacity, padding) stay independent of theme switches.
• Built-in Bundled Tools — Ships with fd, rg, fzf, zoxide, bat, jq, btop, fastfetch, and lazygit — zero Homebrew setup required.
• File Browser — Terminal-native browser (Cmd + Shift + O) with syntax-highlighted previews, fuzzy find, git status indicators, and cd-on-quit.
• Email & Calendar — Built-in Gmail client and Google Calendar TUI accessible via mail and calendar commands.
• Global Chat — Built-in chat rooms (Lounge, Feedback, Show & Tell, Support) via the chat command.
• Split Layouts & Tab Sidebar — 10 one-click split presets, persistent or transient tab rail, custom split pane labels, and full window state restoration.
• Local-First Privacy — No required desktop account, no desktop telemetry, no AI watching your commands; website uses only anonymous aggregate analytics.

To get started: download the DMG from yen.chat, drag YEN to Applications, right-click and select Open to bypass Gatekeeper, then run yen init zsh (or bash) in external shells to enable shell integration.