Developer Builds Minecraft Launcher with Claude Code

Project Overview
BlockHaven Launcher is a free, open-source Minecraft launcher built using Claude Code. The developer, who has 20+ years of software development experience, directed the entire development process without writing specifications or code themselves.
Technical Implementation
The launcher is built with:
- Electron for desktop application framework
- React for user interface
- TypeScript for type safety
- Microsoft OAuth for authentication
- Modrinth API integration for mod browsing
Key Features
- Microsoft authentication system
- Modrinth mod browsing capabilities
- Isolated multi-instance profiles
- Server auto-connect functionality
- Clean user interface
Development Workflow
The developer described the desired architecture and tech stack to Claude Code, which then:
- Wrote the design documents
- Implemented the code
- Utilized start-work skills/tooling for development
The developer's role was directing the process rather than writing specifications or code. The repository is fully public, allowing other developers to examine what Claude Code produces for a real desktop application.
Project Details
- No advertisements or subscriptions
- MIT licensed
- Free to use
- Open-source codebase
📖 Read the full source: r/ClaudeAI
👀 See Also

Using Claude as a Critical Product Manager for Landing Page Optimization
A developer used Claude to critique and rewrite their landing page by treating it as a harsh, contrarian product manager, resulting in improved messaging and SEO performance.

B2B Role-Play Platform Uses Opus 4.7 for Backend, Haiku 4.5 for Live Chat
Socratize (socratize.io) uses Opus 4.7 for orchestration and win/loss evaluation, Haiku 4.5 for real-time chat due to better agreeableness and lower cost.

OpenClaw's Bub AI agent struggles with delegation, burns $20 in 15 minutes during mobile site optimization
During QA for Driftwatch V3, the OpenClaw bot Bub burned $20 in 15 minutes by failing to delegate tasks properly. The developer discovered detailed spec templates reduce costs, while mobile retrofitting added unexpected time and expense.

A Developer's $2,500 Opus Token Burn on OpenClaw: Real-World Workflows vs. Tooling
A software shop owner recounts spending $2,500 on Opus tokens through OpenClaw, using it for bug fixes, visual automation, and server management — but questions what a 'workflow' actually means.