Resources » GitHub Repository   github.com/dasguptaabhranil/kobalt » Downloads   Latest release and archived builds » Documentation   Architecture guides, API reference, and build instructions » Issue Tracker   Report bugs or request features on GitHub Issues     Latest News Kobalt 1.0.4-B Releases! — The Initial Journey of Kobalt starts from Here with Features which can be read on the Latest Changelog file. Documentation portal live — The initial architecture documentation covering the memory subsystem, interrupt model. Contributions and Tests are welcome. Call for testers — We are looking for developers with access to multi-socket AMX x86-64 hardware to help validate the kernel under real enterprise workloads. Open an issue on the tracker if you are interested.

What is Kobalt? Overview Kobalt is a monolithic kernel written entirely in C by Abhranil Dasgupta. Every subsystem, from the memory manager to the scheduler to the virtual file system layer, has been designed and implemented from scratch (or Half scratch. Check the Credits) with specific goals in mind: High-throughput High-Level computing environments Low-latency scheduling for Performance inference workloads Security-critical and safety-adjacent applications demanding deterministic behavior Design Philosophy Monolithic architecture — All core services share a single privileged address space — no IPC overhead, no context-switch tax, just throughput. C only — No C++ in kernel space. Strict aliasing, defined behavior, and predictable codegen are requirements, not goals. No legacy cruft — No decades of accumulated workarounds. The ABI was designed from intent, not inherited from circumstance. Auditable codebase — One engineer should be able to read the entire source in a sitting. Complexity is justified or it isn't there. Current Status The latest release is public. Visit the Download Page to get the latest build, or browse the Changelog for a full history of changes. Credits Third-Party Components FreeBSD & OpenBSD — Drivers for Network (/net) and USB BearSSL — Cryptographic library for TYKID (Tell Your Kernel that I'm Driver) uACPI — ACPI library LightweightIP — Network stack Chan's FAT — exFAT and FAT filesystem support © 2026 Abhranil Dasgupta. Kobalt is licensed under the GPLv3.