Top 10 Open-Source Picks: September 19
A curated look at the 10 open-source repositories that dominated developer attention on Saturday, September 19, 2026. From trending newcomers to steadily-growing community favorites, here is what mattered most.
supermemoryai/supermemory
Memory engine and app that is extremely fast, scalable. The Memory API for the AI era.
tradesdontlie/tradingview-mcp
AI-assisted TradingView chart analysis — connect Claude Code to your TradingView Desktop for personal workflow automation
rustfs/rustfs
🚀2.3x faster than MinIO for 4KB object payloads. RustFS is an open-source, S3-compatible high-performance object storage system supporting migration and coexistence with other S3-compatible platforms such as MinIO and Ceph.
ahmedkhaleel2004/gitdiagram
Free, simple, fast interactive diagrams for any GitHub repository
topoteretes/cognee
Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.
Leonxlnx/taste-skill
Taste-Skill - gives your AI good taste. stops the AI from generating boring, generic slop
curl/curl
A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
ansible/ansible
An agentless automation tool for configuration management and deployments
caddyserver/caddy
A production-ready web server with automatic HTTPS and simple configuration
Editor's Takeaway
On September 19, 2026, these 10 repositories captured the attention of developers worldwide. Leading the charge were OpenSpec, supermemory, tradingview-mcp 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.