This is NOW 100% open-source.
Built with Gemini 4 Argon in Antigravity (plus gemini 4 argon is now available for pro users).
GitHub Repo: https://github.com/Shubhamsaboo/awesome-llm-apps/tree/main/advanced_llm_apps/excaliflow
Excaliflow is now open source, built with Gemini 4 Argon
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The post announces that Excaliflow is fully open source and links a GitHub repository in the awesome-llm-apps collection. It says the project was built with Gemini 4 Argon in Antigravity, and that Gemini 4 Argon is now available to Pro users.
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Source: Shubham Saboo · x.comPublished · added here