User Interfaces • Reference
Four Presentation Shells & Keyboard Motion Table
Nuncio delivers 100% feature parity across all 4 presentation interfaces, synchronized in microsecond time over local length-prefixed IPC socket streams.
Vim Ratatui TUI (`nuncio-tui`) Motion Reference Table
j / kMove message focus cursor down / up
h / lSwitch pane focus between Folder Tree and Message Preview
g iJump focus directly to Inbox
eArchive focused email chord
sToggle Star / Flag status
# / dMove email to Trash
fOpen NSQL Filter Rules Modal
aOpen Account Switcher Modal
/Focus FTS5 Trigram Full-Text Search Bar
oOpen raw HTML email in system browser
uCheck for background auto-updates
qQuit TUI (daemon stays running in background)
1. Tauri v2 Desktop GUI
Glassmorphic dark/light split-panes, live NSQL rule editor, WYSIWYG rich text composer, and native OS desktop notifications.
2. Vim Ratatui Terminal TUI
Sub-millisecond keyboard velocity, Kitty/iTerm2 inline image rendering, HTML-to-ANSI formatting, and single-key triage.
3. POSIX Scriptable CLI
Scriptable subcommand suite (`nuncio mail list`, `nuncio mail export`, `nuncio filter apply`) with deterministic `--json` piping.
4. Native MCP AI Server
Stdio stream protocol connecting Claude Desktop, Antigravity, and Cursor with McpAgentPolicy RBAC safety enclaves.