Can you build custom Filament plugins?

Yes. We have built private Filament plugins for clients covering signature capture fields, geolocation pickers with map integration, advanced JSON editors, Stripe Connect onboarding tools, multi-tenant scoping middleware, audit log viewers with cryptographic verification, CSV import wizards with column mapping, Bagisto catalog bridges, and webhook debugging tools. We follow Filament's plugin architecture so customisations are maintainable, version upgradeable, and portable across your Filament panels.