Interest in an open-source alternative to Clay.com for data enrichment?

I'm considering building an open-source alternative to Clay.com (the customer intelligence/data enrichment platform). The core concept would be a self-hostable solution that can:

Enrich contact and company data from public sources Create custom data tables with flexible schemas Automate data maintenance and updating Connect with common CRMs and productivity tools Prioritize privacy and data ownership

My motivation: While Clay offers a great product, I believe data enrichment should be accessible to smaller teams and individuals without enterprise budgets. An open-source alternative would democratize access to these capabilities. Some technical challenges I'm considering:

How to handle API rate limits for various data sources Building a scalable architecture for processing large datasets Ensuring GDPR/CCPA compliance Creating a user-friendly interface comparable to commercial options

If you're interested in contributing or would use this type of tool, I'd love to hear your thoughts. What features would be most valuable? What integrations would you need? Any insights about potential pitfalls or suggestions on how to approach this project? Has anyone attempted something similar already that I could learn from?