A report from European venture capital firm Runa Capital highlights the top-trending open source startups, with over half related to AI.The ROSS Index selects fast-growing projects based on GitHub stars; 2024's top startups are tech-focused.LangChain led last year's report, showing the demand for AI and data infrastructure in open source tools.Ollama, Zed Industries, and LangGenius are top 2024 startups with significant GitHub star growth.ComfyUI and All Hands also shine with their open source projects in image generation and software development.Developer tooling remains a hot trend in open source, with Zed, Maybe Finance, and RustDesk among the top picks.The geographical spread of top ROSS startups includes San Francisco, Canada, Europe, Singapore, and China.The ROSS Index methodology tracks relative growth for quarterly reports and absolute star counts annually.The list's definition of 'open source' aligns with commercial use rather than strict open source criteria.The Index showcases trending open source tech and companies leveraging them for business.