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Self-hosted post videos with captions, a dedicated watch URL for sharing, and a secret-protected upload flow to Vercel Blob.

How `/api/newsletter` and BlogNewsletterForm hook into Buttondown with an API key—and when to use that instead of the embed.

I wired my homepage—and any post—to a simple email signup that posts straight to Buttondown. No server secret required for that path.

A web app that turns the Personality Matrix idea into a daily practice—morning and evening check-ins, eight dimensions, goals, and optional Oura Ring data, all visualized in 3D. Data stays on your device.

A Python app for artillery safety zones using Table G—Point-to-Point, OpArea, and Firing Point methods. Originally created November 16, 2025; now published with the web UI.