Scream2Wish: Break a Genie Lamp and Free the Mermaid by Screaming

This is a submission for the DEV April Fools Challenge

What I Built

I built Scream2Wish, an Android app where you have to literally scream at your phone to make a wish.

The app forces you through a fake login, then shows a genie lamp. The louder you scream, the more the lamp breaks. If you stop even for a second, it fully resets. Once you finally break it, a random character comes out (including mermaids… from a genie lamp, obviously).

You can then type a wish and a note. That data gets sent through a Cloudflare Worker → GitHub Actions pipeline and is permanently stored in a public GitHub repo. In return, you receive a random stranger’s note.

It solves nothing. It wastes your voice. It permanently stores your questionable wishes online.

Demo

📱APK Download: 🧞Scream2Wish APK🧜🏻‍♀️

🌐 Wishes Board: Visit the Scream2Wish Board
(Note: Website shows all wishes with name + timestamp)

Code

The project is entirely open-source under the MIT license.

Main repo (App + Worker):

RajnishKMehta / Scream2Wish

An Android app where you scream to break a genie lamp and send your wish to GitHub

🧞 Scream2Wish

An Android app that makes you scream to make a wish then sends it to the universe.

A submission for the DEV April Fools Challenge 2026

📱 Download APK · 🌐 Wishes Board · 📦 Wishes Repo

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What Is This?

Scream2Wish is a completely useless, mildly chaotic Android app that forces you to scream as loud as you can to break a genie's lamp — and only then lets you make a wish.

Your wish gets sent to the internet via a Cloudflare Worker → GitHub Actions pipeline and lives forever in a public repo. In return, you get to read a random stranger's note. Whether that's comforting or unsettling is entirely up to you.

It solves zero real-world problems. It does exactly what it says. That's the point.

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Download

Install on any Android device (sideloading required — enable "Install from unknown sources" in settings).

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The Full Experience

…

View on GitHub

Wishes storage repo: https://github.com/RajnishKMehta/Scream2Wish-wishes

How I Built It

Technical Pipeline Details:

1. React Native (Expo):The app detects screams using microphone amplitude.
2. Persistence: Wish + note + name is sent to a Cloudflare Worker.
3. Automation: The Worker triggers a GitHub repository_dispatch event.
4. GitHub Actions: Runs a workflow to generate a unique ID, save the wish as JSON, and update the global index.json.
5. Frontend: Data becomes publicly readable via GitHub Pages + Vite.

Tech Stack

• Frontend: Expo + React Native
• Audio: expo-audio (scream detection) & expo-speech (genie voice)
• Backend: Cloudflare Workers
• Database/Storage: GitHub Actions (persistence pipeline)
• Website: GitHub Pages + Vite

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Good luck to your vocal cords!