This zkApp received an award from Mina Foundation at zkHack in Krakow zkMinaOnramp addresses the current need for a secure and efficient method to acquire MINA tokens swiftly. Utilizing ZK technology and the Protokit sequencer, zkMinaOnramp ensures privacy during on-ramping transactions (where individuals purchase MINA tokens with fiat) while eliminating delays and transaction race conditions. During its development journey, zkMinaOnramp encountered and successfully navigated several challenges. Initially, updating all dependencies to integrate a new, standardized version of o1js required dedicated effort but resulted in a more robust foundation. Addressing concerns about potential centralization issues with Protokit, the team explored innovative solutions like “L1 based-sequencing,” which enhances the protocol’s resilience and operational transparency. Adjustments regarding email receipt content, though initially misaligned, provided valuable insights for refining payment gateways and verification strategies. These adjustments fostered a more secure and user-friendly experience. Overall, zkMinaOnramp’s journey involved crafting sophisticated contracts and a seamless user interface, contributing positively to its robustness and functionality. View the code on GitHub.