Hermes by Nous Research is a self-hosted autonomous agent with persistent cross-session memory, scheduled cron tasks, and self-improving skills. At 175K GitHub stars in under 4 months, here is what it does, how it compares to Claude Code, and who should use it.
MarkItDown is Microsoft's open-source Python library that converts PDFs, Word docs, Excel, PowerPoint, and 12+ formats to clean Markdown for LLM pipelines. 139K GitHub stars, 82% F1 accuracy, zero GPU required. Full setup guide with benchmarks.
Google is shutting down Gemini CLI for free, Pro, and Ultra users on June 18, 2026. Here is what happened with the 6,000 open-source contributions, what Antigravity CLI actually is, and the one migration path worth prioritizing.
OpenCode just shipped Desktop v2 with push-based background agents and a full desktop redesign. At 161K GitHub stars vs Claude Code's 124K, here is what actually differs between the two tools and how to decide which one to use.
Garry Tan open-sourced his entire AI development workflow. gstack turns Claude Code into a virtual engineering team with 23 specialist roles — CEO reviewer, QA lead, security officer, and more. Here's who it's for, how it works, and why it might change how you ship software.