Mailchimp

Build me a small-list email campaign tool to replace Mailchimp. Requirements: - Node + Express + better-sqlite3 on my VPS. Admin UI bound to localhost/VPN; only the subscribe and unsubscribe endpoints are public. - Contacts with tags and custom fields, CSV import and export, and segments saved as filters (has tag X, joined after date, opened last campaign). - Campaigns written in Markdown, rendered into one clean single-column HTML email with mjml, plain-text alternative generated automatically. - Send through Amazon SES (keys in .env) with throttling and per-recipient status; SES bounce and complaint notifications auto-suppress those addresses. - Compliance baked in: unsubscribe link and postal address in every footer, a List-Unsubscribe header, double opt-in on the public signup form. - Open tracking is a per-campaign toggle, default off. Campaign report shows sent, bounced, and unsubscribed counts. - One SQLite file holds everything; no telemetry, no third-party trackers. - Out of scope: the drag-and-drop template editor, automation journeys, and ecommerce integrations. One good template, sent well. - README warning: inbox placement is earned, not coded. Document SPF, DKIM, and DMARC setup and tell me to warm up sending volume gradually.