· 8 min read
A heap overflow in Accelerate's DGEQRF on a macOS 27 beta
Random crashes in a PyTorch job on my Mac turned out to be Apple's QR routine writing past a buffer. What I found and how I narrowed it down.
Prithvish Baidya (d4mr)
systems engineer
I build decentralized systems and the infrastructure that makes them usable. Currently on the Rollups Team at Conduit, working on rollup infrastructure.
You might also know me as earthish or d4mr (deformer).
Recent Writing
↗ · 4 min read
pixgel: Pixel Art That Beads Together Like Mercury
A pixel art editor where pixels fuse into each other on a grid. SVG export, share-by-URL, no backend. Built around a single corner rule.
· 10 min read
Anthropic's Kernel Optimization Challenge, Part 1: Understanding VLIW Machines
A visual guide to VLIW SIMD architectures, instruction scheduling, and why packing operations into cycles matters.
Selected Work
↗zkRail
2024Trustless fiat settlement for autonomous agents
◆ ETHIndia · ETHIndia 2024 Winner · Coinbase Track · CDP Track · Polygon Track
0list
2026Self-hosted waitlist software on Cloudflare
pixgel
2026Liquid pixel art editor with smooth SVG export
engine-core
2024Production-grade blockchain transactions in Rust
t2z
2025Transparent to shielded Zcash
◆ Zypherpunk · 1st Place - Electric Coin Company Track ($5,000) · Raybot Bounty ($2,000) · Tachyon Bounty ($500) · Network School ($1,500 credits)
