Show HN: Usage-aware QuickBooks sync for billing systems

Hi HN, We recently built a QuickBooks integration for admin.flexprice.io, our usage-based billing system. The goal was to build a reliable bridge between modern billing models (usage, metered charges, commitments) and traditional accounting workflows. Key design choices: - One-way invoice sync (billing → accounting) - Automatic customer and service-item creation - Entity mapping to prevent duplicates - Inbound payment sync via QuickBooks webhooks - Clear separation of responsibilities between systems Sharing in case this is useful to others dealing with similar billing → accounting gaps here! Happy to answer questions if any, we have the docs here: http://docs.flexprice.io/integrations/quickbooks http://docs.flexprice.io/integrations/quickbooks If you would like to jump in-depth, we also have a open-source community and would love to see you there: http://bit.ly/4huvkDm http://bit.ly/4huvkDm