Title
Use Proton Custom Items as an encrypted bookmark manager

Category
Feature request

Description

Proton already provides Proton Custom Items, a zero‑access‑encrypted database that lets users define arbitrary fields, filter, sort, and share rows. By creating a simple schema (Title, URL, Tags, Notes, Added Date, Last Visited) users can build a fully searchable, encrypted bookmark collection that syncs across web, iOS, Android, and desktop.

Why this works today

All data is encrypted end‑to‑end, matching Proton’s privacy guarantees.
Structured fields enable fast lookup (e.g., “show me all bookmarks tagged privacy added last month”).
Lumo can be used to add, retrieve, or query bookmarks via natural‑language prompts.
Sharing settings let individuals or teams expose the whole collection or individual entries without compromising other data.
Benefit to the community

Provides an immediate, no‑code solution for users who request an “encrypted bookmark manager.”
Reduces the need to develop a brand‑new product while still delivering the requested functionality.
Serves as a solid foundation for a future dedicated UI (e.g., a “Proton Bookmarks” front‑end) if demand grows.
Suggested next steps

Publish a short “How‑to” guide in the Knowledge Base showing users how to set up a Bookmarks custom database (field definitions, import from CSV, basic Lumo queries).
Add a quick‑link to this guide in the Proton Custom Items UI (“Bookmark manager template”).
Consider a lightweight UI overlay in the future that surfaces the most common bookmark actions (add, tag, search) while still leveraging the underlying custom‑item infrastructure.