CosmOS

Collaborated in a team of three to develop core OS subsystems, including interrupt handling, user-level threading, and kernel/application paging, inspired by Unix Version 6.

Implemented a custom, block-based filesystem with full CRUD functionality (create, read, update, delete) and a caching system for improved I/O performance.

Built virtual memory management using the RISC-V Sv39 paging scheme, with lazy allocation and page fault handling to optimize memory utilization and process isolation.