· 4 min read
Implementing Figma-Style Drag-to-Adjust Number Inputs
How to build the delightful click-and-drag number input interaction from design tools using the Pointer Lock API.
Prithvish Baidya (d4mr)
systems engineer
I build decentralized systems and the infrastructure that makes them usable. Currently working on developer tooling and key management for blockchain applications.
You might also know me as earthish or d4mr (deformer).
Recent Writing
↗ · 16 min read
Ethena, Boros, and the Capital Efficiency of Rate Swaps
A deep dive into perpetual funding rates, delta-neutral strategies, interest rate swaps, and why hedging rates is so capital-efficient.
· 4 min read
The Case of the Phantom Hash
How I discovered HyperEVM system transactions have two valid hashes, and the rabbit hole that led me into nanoreth's source code.
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
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)
