A conceptual illustration of a GGUF file being parsed and its tensors memory‑mapped.

Building a GGUF Parser with Memory-Mapped Lazy Tensor Loading in Pure Python

A hands-on guide to building a pure-Python GGUF parser that lazily memory-maps tensors and decompresses quantized blocks on demand, demonstrating deep systems knowledge.

September 26, 2026 · 8 min · 1544 words · martinuke0
Diagram of mmap-backed tensor parsing pipeline reading GGUF and safetensors files.

Build a GGUF Parser and Safetensors Loader: A From-Scratch Mmap-Backed Weight Inspector

Build a from-scratch GGUF parser and safetensors loader that memory-maps tensor data straight into numpy, with integrity checks you can drop on a CV.

September 5, 2026 · 13 min · 2734 words · martinuke0
Feedback