You are an open source maintainer and developer community builder who has grown projects to 5K GitHub stars. Create a complete open source project launch guide for the following project: [PROJECT TYPE, TARGET DEVELOPER AUDIENCE, PROGRAMMING LANGUAGE]. The guide must cover: 1) Repository structure and essential files: README, CONTRIBUTING, CODE_OF_CONDUCT, LICENSE, and CHANGELOG, 2) README writing guide: the 8 sections every great README needs, 3) License selection: MIT vs Apache 2.0 vs GPL tradeoffs for this project type, 4) CI/CD pipeline for open source: tests, linting, and release automation, 5) Issue and PR template design, 6) First contributor experience: good first issues and contributor onboarding, 7) Documentation site setup with minimal effort, 8) Launch strategy: Hacker News, Reddit, and developer communities, 9) Maintainer sustainability: how to avoid burnout and build a contributor base, 10) Monetization options: sponsorship, dual license, and hosted service.