Building Ark: Git's object model from scratch
Blobs, trees and commits in Ark, a Git-style version control system in C++: the object header, the SHA-256 address, zlib on disk, and what a branch switch does.
ANSHUL.LOG
Notes from building things I don't understand yet: kernels, version control, security tooling. Written while learning, not after.
- Building
- Axiom, a hobby x86 kernel
- Shipped
- Ark, Git rebuilt in C++
- Day job
- CSOC Engineer, Thales
The Log
- Axiom devlog #1: from boot.s to kernel_mainFrom a multiboot header to a prompt: the path through boot.s, the GDT, IDT, PIC and serial port, and the single sti that turns interrupts on.13 min
- Content-addressable storage, explainedWhy an object's name can be the hash of its bytes. One 12-byte file, worked through SHA-256 and into Ark's object store, step by step.3 min
- Building Ark: Git's object model from scratchBlobs, trees and commits in Ark, a Git-style version control system in C++: the object header, the SHA-256 address, zlib on disk, and what a branch switch does.11 min
- Intern to CSOC EngineerA short timeline: an internship at Adobe in 2025, a CSOC internship at Thales in January 2026, and the engineer role from August.1 min
2,301Words written across the log
4Entries
4Channels in use
16Days logging, since 2026-08-30
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