Newsletter signup (privacy-respecting, no third-party trackers)

[truthixify]

Tier: M (2-4 days) Type: feature

Context

Email is the highest-conversion channel. Today no capture. Add a privacy-respecting signup (Buttondown or self-hosted Listmonk, NOT Mailchimp).

Scope

Pick Buttondown (recommended for privacy) or Listmonk (self-hosted):

• Footer + landing CTA signup form
• Single email field, double opt-in confirmation
• Privacy line: "We send X-monthly updates. Unsubscribe anytime. We never share your email."
• No tracking pixels, no Mailchimp
• Honeypot anti-spam
• Success state with friendly thank-you

Acceptance criteria

• Signup form on landing + footer
• Provider integrated
• Privacy line accurate
• Double opt-in working
• Anti-spam in place

Files to start with

• src/components/Footer.tsx
• New: src/components/NewsletterSignup.tsx