Top 10 Open-Source Picks: November 11
A curated look at the 10 open-source repositories that dominated developer attention on Wednesday, November 11, 2026. From trending newcomers to steadily-growing community favorites, here is what mattered most.
addyosmani/agent-skills
Production-grade engineering skills for AI coding agents.
hugohe3/ppt-master
AI generates a real, editable PowerPoint from any document — native shapes & animations, speaker notes voiced as audio narration, and the option to follow your own .pptx template, not slide images · by Hugo He
mattermost/mattermost
An open source team collaboration and messaging platform
MonitorControl/MonitorControl
🖥 Control your display's brightness & volume on your Mac as if it was a native Apple Display. Use Apple Keyboard keys or custom shortcuts. Shows the native macOS OSDs.
unclecode/crawl4ai
🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper. Don't be shy, join here: https://discord.gg/jP8KfhDhyN
github/awesome-copilot
Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot.
zarazhangrui/frontend-slides
Create beautiful slides on the web using a coding agent's frontend skills
Editor's Takeaway
On November 11, 2026, these 10 repositories captured the attention of developers worldwide. Leading the charge were agent-skills, sure, topcoat alongside 7 other compelling projects, with each representing a different facet of where open-source momentum is heading. What ties them together is community trust: high star counts, active contributors, and real-world utility. If you haven't already, explore each project on its detail page, check out the contributor leaderboard, and consider starring the ones that solve problems you care about. Open source thrives when people engage, and these 10 repos are the proof.