Wd-40, a static webserver with automatic hot-reloads
It works by injecting a websocket script which listens for file changes. The filechanges are detected using the go fsnotify package, which in turn uses the different OS's equivalent to inotify. I basically got bored with alt-tabbing and refresing when developing 'vanilla-js'. The hot-reload in the modern frameworks are very nice, so figured I'd recreate it.
In plain words
WD-40 is a static webserver that automatically reloads web pages when files change. It works by injecting a WebSocket script that monitors the file system for updates using the OS's native file notification system. The tool is designed for developers working with vanilla JavaScript who want to avoid manually refreshing their browser during development, bringing hot-reload functionality typically found in modern frameworks to static site development.
written from the facts on this page · September 2026
More life & fun this month
the category →- TL
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is
Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 27d ago · baselashraf81.github.io
Launched alongside, August 2024
the whole month →
- IY
Life & fun · 2024 · ytch.xyz
- IA
Hey there HN! We’re Joe and Stopa, and today we’re open sourcing InstantDB, a client-side database that makes it easy to build real-time and collaborative apps like Notion and Figma. Building modern apps these days involves a lot of schleps. For a basic CRUD app you need to spin up servers, wire up endpoints, integrate auth, add permissions, and then marshal data from the backend to the frontend and back again. If you want to deliver a buttery smooth user experience, you’ll need to add optimistic updates and rollbacks. We do these steps over and over for every feature we build, which can…
Dev tools · 2024 · github.com