Justin SilverTECHNOLOGY, TRAVEL & EVERYTHING IN BETWEEN

Journal

Articles

1–12 of 267 stories

A geometric dark blue padlock with a turquoise keyhole, the Locket project artwork.

Managing development credentials with Locket

I built Locket to replace plaintext .env files with an encrypted local vault, command policies and team sharing, with AI coding agents in mind.

An orange geometric pika holding a bundle of grasses, the lru-cache-clustered project mascot.

02Programming

Sharing a cache between Node.js cluster workers

I built lru-cache-clustered so Node.js workers could share one cache, use less memory, and reuse results cached by other workers.

The doublcov geometric owl mascot in green and dark blue.

03Programming

Viewing coverage across languages with doublcov

I built doublcov to make coverage reports easier to read across projects, with source search, uncovered-code navigation, history and CI publishing.

The black and orange bin-packing chipmunk mascot holding a square beside a grid of packed blocks.

04Programming

Optimizing cut lists with bin-packing

I built bin-packing to turn panels from my subwoofer designer into cut lists for the available stock, using Rust and WebAssembly.

The abi-typegen orange robotic shrimp mascot with blue light trails.

05Programming

Generating contract bindings with abi-typegen

I built abi-typegen in Rust to replace TypeChain in a Foundry project, then expanded it to generate code for other languages and platforms.

Blue data cards in a glass box beside a brass hourglass, with one amber card in front.

06Programming

Caching data based on how often it changes

I built adaptive-cache to cache stable data for longer and adjust cache lifetimes when the content changes.

07Blockchain

Deploy Contract With Custom Metadata Hash

When you deploy a Solidity contract the compile has removed the comments from the bytecode, but the last 32 bytes of the bytecode is actually a hash of: hashed bytecode compiler…

08Technology

NGINX Feature Flag Reverse Proxy

Use NGINX as a reverse proxy to different back-end servers based on feature-flags set in the ngx_http_auth_request_module add-on. In my implementation for Secret Party the…

09Blockchain

Slither & Echidna + Remappings

While testing a project using hardhat and Echidna I was able to run all tests in the project with echidna-test . but was not able to run tests in a specific contract that…

10Cryptocurrency

UnsafeMath for Solidity 0.8.0+

UPDATE: Check out the @0xdoublesharp/unsafe-math module available on NPM for an easy to use, prepackaged, and tested version of this library! UnsafeMath is a Solidity library…

11Cryptocurrency

NFT - Mint Random Token ID

The perceived value of many NFTs is based on that item's rarity making it ideal to mint them fairly. Rarity snipers and bad actors on a team can scoop up rare items from a…

12Cryptocurrency

Provable Randomness with VDF

A Verifiable Delay Function (VDF) is a linearly computed function that takes a relatively long time to calculate, however the resulting proof can be verified to be the result of…