My Stack for Building and Monitoring 6 Web Apps as a Solo Developer

I run six web apps as a solo developer with a day job. Here is the exact stack and how the pieces fit together. Hosting and deployment: five apps are on Lovable (one-click deploy from their builder), one (ContentForge) is on Vercel. All use custom domains through Cloudflare for DNS and SSL. Database: Supabase (Postgres) for all six apps plus a central "command" project that holds cross-app analytics, book sales data, and the marketing engine. Payments: Stripe with tiered pricing on every app. Free tier, mid tier ($3.99-4.99/mo), premium tier ($7.99-9.99/mo). No paying customers yet, but the infrastructure is ready. Analytics: PostHog for product analytics across all six apps. One project, events tagged by app name. This lets me compare engagement across apps in a single dashboard. Error tracking: Sentry with one org and separate projects per app. Uptime: BetterStack monitors all six domains. Email: Resend for transactional email. The key architectural decision: one central Supabase pro