Open collective

Federico Zivolo

JavaScript Engineer and UI Specialist. Creator of bootstrap-material-design and popper.js. Open Source addicted.

This is Federico Zivolo's page Federico Zivolo

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Transparent and open finances.

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Consulting services

Credit from Popper to Federico Zivolo • February 22, 2021

+$1,000.00USD

Paid

Invoice #34390