tldiagram vs KoKo

Software system-architecture diagramming app that helps engineering teams design, debug, and communicate complex distributed systems. tldiagram makes it easy to create nested views of a complex system with higher detail as you go deeper that can be zoomed in and out to give you the context you need without the noise.

KoKo is a mobile SSH terminal for developers who need to manage AI coding agents on their own Linux servers from iPhone. Supported agents (on your server) • Cursor — agent persist attach / resume • Claude Code — GNU screen sessions • Codex CLI — GNU screen sessions • Gemini CLI — GNU screen sessions Features • Real SSH PTY terminal (colors, cursor, menus, y/n prompts) • Persistent remote sessions (Cursor agent persist; Claude/Codex/Gemini via named GNU screen) • Optional one-tap agent CLI install on the server (with consent) • Generate Ed25519 / ECDSA / RSA keys in-app; private keys stay in Keychain • Host key TOFU confirmation • Shortcut bar: Esc, Tab, Ctrl+J, arrows, Shift+Tab • Local scrollback per session • Agent login assistance (browser OAuth / device codes where applicable) Requirements: your own SSH-accessible Linux server. Agent CLIs run on the server. KoKo does not host user accounts or provide a cloud relay.