Summary

Several features have no dedicated docs page. Currently missing:

• Nostr relay — --nostr, NIP-01/NIP-11/NIP-16 relay
• Notifications — WebSocket solid-0.1 protocol, --notifications
• Storage quotas — per-user limits, CLI management
• Invite-only registration — invite codes, --invite-only
• Mashlib / SolidOS UI — data browser modes (CDN, local, ES module)
• Single-user mode — personal pod setup
• Content negotiation — Turtle ↔ JSON-LD, --conneg

Some of this content exists in docs/configuration.md but should be standalone pages for discoverability.