Raindrop.io

Build me a personal bookmark manager to replace Raindrop.io. Requirements: - A local web app: Node + Express + better-sqlite3 on localhost:4040, server-rendered, minimal JS. - Save via a bookmarklet that POSTs the current URL to /save; the server fetches the page, pulls title/description/og:image with metascraper, and stores the readable article text (@mozilla/readability) for search. - Bookmarks take free-form tags (comma entry, autocomplete from existing tags) and an optional note. - Full-text search across title, note, and archived page text with SQLite FTS5; filter by tag, newest first. - List view: favicon, title, domain, tags, saved date. A weekly node-cron job re-checks links and flags 404s. - Import from a Netscape bookmarks HTML export; export everything as JSON and CSV from an /export route. - Binds to localhost only; no accounts, no telemetry, the whole archive is one SQLite file I can back up. - Out of scope: mobile apps and full page-snapshot archiving, the stored text is the archive. No team collections. - README: how to install the bookmarklet and where the DB file lives.