Rubber Duck Thursday - hacking with agent mode

Key Concepts

GitHub Copilot, GitHub Copilot Pro Plus, GitHub Copilot Agent Mode, Claude Sonnet 4, Code Refactoring, Bug Fixes, React Native, Expo, Superbase, Async Storage, iOS Simulator, MVP (Minimum Viable Product), Vibe Coding, Prompt Engineering, Context Engineering, LLM (Large Language Model), Readme, Github Actions, GitHub Change Log, For the Love of Code

GitHub "For the Love of Code" Competition

• Main Topic: GitHub's "For the Love of Code" competition, running from July 16th to September 22nd.
• Key Points:
  • The competition encourages developers to build fun and innovative projects.
  • Prizes include internet immortality (feature on the GitHub blog) and 12 months of GitHub Copilot Pro Plus.
  • Six categories:
    • Button Beeps and Blinking Lights (hardware-related projects).
    • Agents of Change (AI-powered experiences).
    • Terminal Talent (terminal-based tools).
    • Game On (video games).
    • Worldwide Wonders (web applications).
    • Everything But The Kitchen Sink (miscellaneous projects).
  • Participants can submit up to 42 projects, individually or as a team.
  • Open source is encouraged, and using GitHub Copilot is optional.
  • Projects must be in a public repository with a clear readme.
  • Winners will be chosen by October 22nd.
• Examples:
  • Traffic light that displays build status (Button Beeps and Blinking Lights).
  • LLM-powered changelog writer (Agents of Change).
  • Command-line karaoke machine (Terminal Talent).
  • Retro-style arcade game (Game On).
  • Web app that roasts GitHub usernames (Worldwide Wonders).

Quibbit App Development

• Main Topic: Development of Quibbit, a React Native app for saving and categorizing links, articles, videos, and notes.
• Key Points:
  • Functionality: Allows users to save and categorize links, articles, videos, and notes from across the web. Includes a voice recording feature with transcription (under development).
  • Tech Stack: React Native with Expo (cross-platform support for iOS and Android), Superbase (authentication and database), Async Storage (local persistence for offline functionality).
  • UI: Simple UI with categories, card view, list view, and settings (manage categories).
  • Current Tasks: Improving link previews, implementing voice recording functionality, fixing custom category color updating bug.
  • Development Process: Using GitHub Copilot Agent Mode and Claude Sonnet 4 for code generation, UI design, and bug fixing.
• Bug Fixing Example:
  • The custom category colors were not updating correctly.
  • GitHub Copilot identified issues: incorrect color variable, missing async storage persistence, and potential color migration problems.
  • Copilot fixed the issues and added debugging code to prevent future problems.
• Link Preview Enhancement:
  • Used Copilot to update the link cards to reflect the attached design and improve the link previews.
  • Displayed a preview image, play button overlay, card layout, content layout, header section, description, meta information, and tags.

Copilot Agent Mode and Development Workflow

• Main Topic: Using GitHub Copilot Agent Mode to accelerate development and improve code quality.
• Key Points:
  • Context Engineering: Providing Copilot with detailed instructions, readme files, and initial product requirements for better code generation.
  • Instructions File: Using the Copilot instructions file to provide context on the project's architecture, data flow, key directories, and developer workflow.
  • Review and Refactoring: Using Copilot to review code, identify potential issues, and suggest refactoring improvements (e.g., fetching data from Superbase after deletion).
  • Iterative Development: Using Copilot to implement changes step-by-step and address bugs as they arise.
  • Commit and Stage: Emphasizing the importance of staging and committing changes frequently when working with AI agents due to their tendency to make unexpected modifications.
• Code Review Example:
  • Copilot identified that the delete function was missing a JS doc comment.
  • Copilot identified that after deleting a link, the local state is updated, but there is no refetch from superbase.
  • Copilot recommended reloading links after deletion for better sync.
  • Copilot identified that The error message in the cache block is generic.
• Tool and Frameworks: React Native, Expo, Superbase.

Vibe Coding and the Amazon Music MVP

• Main Topic: Building an Amazon Music MVP using "vibe coding" with GitHub Copilot Agent Mode.
• Key Points:
  • Vibe Coding Philosophy: Embracing a more intuitive and less rigid approach to coding, focusing on the overall vision and letting the AI assist with implementation details.
  • Steps:
    1. Describing Amazon Music in simple MVP terms to Copilot.
    2. Instructing Copilot to build the described MVP.
    3. Iterating on the generated code, addressing errors, and refining the functionality.
  • Outcome: Copilot generated a functional Amazon Music MVP with features like a music catalog, audio playback, queue management, playlist features, music player interface, and browser recommendations.
• Challenges: Encountering and resolving errors related to dependencies (e.g., crypto hash is not a function) and import paths.
• Andre Karpathy Quote: "Give into the vibes" of coding, which encapsulates the philosophy of embracing AI assistance and focusing on the broader vision.

Superbase Usage Explanation

• Superbase for backend: Used for authentication, database, real-time functionality, and potentially storage for voice recordings.
• Features: Authentication, database, storage, edge functions, real-time, vector database for embeddings, cues, and crows.
• Free Tier: Superbase has a generous free tier that developers can use to build with.

Conclusion

The video highlights the power of GitHub Copilot and other AI tools in accelerating software development, improving code quality, and enabling developers to bring their ideas to life more quickly. It emphasizes the importance of context engineering, iterative development, and embracing the "vibe coding" philosophy to unlock the full potential of AI-assisted development. The speaker also encourages viewers to explore side projects, validate their ideas, and share their creations with the world.