Seasonal
easter eggs
for personal sites.

One line in your HTML

Just before </body> on every page you want eggs on:

<script defer src="https://eggs.adao.dev/script.js"></script>

That's it. Eggs activate automatically on their dates. Off-dates — nothing loads, no SVGs fetched, near-zero footprint.

What's in the calendar

Once, then gone

URL overrides

• ?egg=<id> — force-activate any egg regardless of date (comma-separate ids to run several at once)
• ?egg=off — silence eggs even on their active date
• ?egg=list — log the registry to the console (past one-off events hidden)

Notes for the curious

• Pure vanilla JS — no build step, no dependencies, no framework.
• SVG art is lazy-loaded only when an egg activates. Off-dates fetch nothing beyond the script itself.
• Every visual respects prefers-reduced-motion; touch devices skip cursor effects.
• Decorative SVGs use pointer-events: none, so they never block clicks underneath.
• A persistent dismissible badge (bottom-right) gives non-fans context for what they're seeing.
• Self-locating: the script computes its own base URL, so script.js and images/ can live on a different origin from the embedding site.