During April 2026, work focused on enhancing the microsoft/openvmm repository by implementing generic Programmable Interrupt Controller (PIC) support and integrating IRQ routing within the chipset resources. This involved developing new device handles and resolvers in Rust, refactoring the codebase to streamline interrupt handling, and reducing legacy dependencies for improved maintainability. Additionally, support for the PIIX4 PCI-ISA bridge was added, including device handle creation and manifest builder updates to facilitate virtualization features. The approach emphasized system programming and chipset development, enabling more flexible worker configuration and laying the groundwork for future enhancements in virtualization and interrupt management.