DeFinVoice

DAOs and crypto freelancers needed invoicing that handles both fiat and token payments. FreshBooks and the rest are fiat-only, and the few crypto-native options were either closed-source or abandoned projects nobody maintained. Built DeFinVoice as an open-source invoicing platform with full lifecycle tracking. Create invoices, manage customers, track payment status — across both traditional and crypto payment rails. Teams can invoice in whatever currency the client prefers. Made it self-hostable on purpose. The crypto space has a trust problem with financial tools, and the fix is letting teams audit exactly what the software does with their data. No vendor lock-in, no black boxes. Open-source under a permissive license.