During May 2025, Maresko enhanced wallet import workflows for the vultisig/vultisig-ios and vultisig/vultisig-android repositories, focusing on cross-platform testability and streamlined file handling. He implemented support for importing .txt files, aligning file naming conventions on iOS and broadening MIME type acceptance on Android. Using Swift and Kotlin, Maresko improved file validation logic and enabled more realistic data import scenarios, reducing manual test setup and accelerating end-to-end validation. His work established parity between iOS and Android import features, laying the foundation for broader format support and more efficient testing. The updates reflect depth in Android and iOS development practices.