Four Linux kernel modules — character device, block device (blk-mq), network device (NAPI), and PCIe (MMIO/MSI/DMA) drivers — built and tested end-to-end in Docker + QEMU.
A distributed, Raft-replicated LSM-tree key-value store built from scratch in Rust: WAL, memtable, SSTables, bloom filters, compaction, and Multi-Raft sharding/replication over gRPC.