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Copilot AI commented Dec 6, 2025

Implementation Complete for Yell Quiz App ✅

  • Project setup and architecture

    • Create monorepo structure with shared packages
    • Set up Next.js web application with TypeScript server (using tsx)
    • Set up Expo mobile application
    • Create shared types and utilities package
    • Set up backend API (Next.js API routes)
    • Configure development environment with mise.toml and bun
  • Core data models and types

    • Define quiz, question, session, player types
    • Define answer and reaction types
    • Define leaderboard and prize mode types
  • Backend implementation

    • Session management (create, join, end)
    • Memorable word-pair join code generation (e.g., "happy-tiger")
    • Real-time communication (WebSocket/Socket.io)
    • Question flow management
    • Answer collection and scoring
    • Leaderboard calculation
    • Prize mode logic (top score, random raffle, spin wheel)
  • Web application (Next.js)

    • TypeScript server using tsx instead of node
    • Host view (quiz control panel)
    • Player join page (with memorable word-pair codes and QR)
    • Player quiz interface
    • Live reactions (thumbs up)
    • Question types (MCQ, poll, scale, numeric guess)
    • Leaderboard display
    • Prize wheel/raffle display
  • Mobile application (Expo)

    • QR code scanner for joining
    • Join with word-pair code input
    • Player quiz interface
    • Live reactions
    • Question types support
    • Leaderboard view
  • Premium features (SaaS) - Framework in place

    • User tier types defined (Free, Premium, Enterprise)
    • Tier limits structure
    • Analytics types
    • Branding types
    • Session history types
  • Documentation and deployment

    • Comprehensive README with bun setup instructions
    • API documentation
    • Usage guide
    • Deployment instructions
    • mise.toml for tool version management
  • Code quality

    • Address code review feedback
    • Remove duplicate utility functions
    • Update deprecated methods
    • Update metadata
    • TypeScript server with ES2020 target

Key Features

Memorable Join Codes

Players join sessions using easy-to-remember word pairs (e.g., "happy-tiger", "brave-eagle") instead of random character codes. This makes it much easier to communicate join codes verbally or visually.

Modern TypeScript Stack

  • Server converted to TypeScript with tsx for better type safety
  • ES2020 compiler target for modern JavaScript features
  • Proper ESM imports throughout

Tool Configuration

  • .mise.toml for managing Node.js and bun versions
  • bun as the primary package manager for faster installs
  • Development environment setup made consistent across teams

Screenshots

Homepage:

Host Quiz Creation:

Session Control (Host View with QR Code):

Join Page:

Original prompt

Create a cross-platform live quiz app called Yell, like Kahoot/Menti. Use Expo for iOS/Android and Next.js for web. Support join codes, QR join, named players, live reactions (thumbs up), multiple question types (MCQ, poll, scale, numeric guess), leaderboards and prize modes (top score, random raffle, spin wheel). Core should be open source, with optional premium SaaS features like higher limits, analytics, branding, session history and free-tier trials that hook users to register.


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Copilot AI self-assigned this Dec 6, 2025
Copilot AI and others added 2 commits December 6, 2025 14:03
Co-authored-by: johnnyhuy <27847622+johnnyhuy@users.noreply.github.com>
Co-authored-by: johnnyhuy <27847622+johnnyhuy@users.noreply.github.com>
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use mise.toml to configure tool deps too @copilot

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can this be in ts using tsx?

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Converted server.js to server.ts with proper TypeScript imports and using tsx to run it in commit af20dbd.

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use a later compiler target and stable one instead of es2017

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Updated compiler target from ES2017 to ES2020 in commit af20dbd.

}

function generateJoinCode(): string {
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
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use work pairs instead, like pappa-john etc. so that it's easy to remember

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Changed join codes from random characters to memorable word pairs (e.g., "happy-tiger") in commit af20dbd. Uses 24 adjectives × 24 nouns for 576 unique combinations.

Comment on lines 3 to 15
## Getting Started

First, run the development server:

```bash
npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev
```
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use bun instead

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Updated README and all documentation to use bun instead of npm in commit af20dbd.

* Generate a random 6-character join code
*/
export function generateJoinCode(): string {
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
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use word pairs

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Implemented word pairs for join codes using adjective-noun combinations (e.g., "happy-tiger") in commit af20dbd.

… codes, add mise.toml, switch to bun

Co-authored-by: johnnyhuy <27847622+johnnyhuy@users.noreply.github.com>
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Copilot AI commented Dec 7, 2025

use mise.toml to configure tool deps too @copilot

Added .mise.toml with Node.js 20 and bun configuration in commit af20dbd.

Copilot AI changed the title [WIP] Create cross-platform live quiz app Yell Create cross-platform live quiz app Yell Dec 7, 2025
Copilot AI requested a review from johnnyhuy December 7, 2025 06:16
@johnnyhuy johnnyhuy marked this pull request as ready for review December 23, 2025 00:18
@johnnyhuy johnnyhuy merged commit 68a9979 into main Dec 23, 2025
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2 participants