~/cool-stuff — a live index of software experiments

cool:stuff

Networking, realtime, databases, and frontend playgrounds — every idea crammed into a folder and documented straight from its README. Each page here is generated from the project's own readme file, so what you read is what the repo says.

projects

Pick one — every card is a folder in the monorepo, and every page renders that folder's README.

(10) total

debounce-selection

A React playground for debouncing text-selection events.

reactviteperformance

dns

A minimal DNS server in Node.js, built directly on raw UDP datagrams.

nodeudpnetworking

http-pooling

HTTP connection pooling experiments — a NestJS service paired with a React client.

nestjsreactnetworking

postgres-concurrent-indexing

A Go simulation of PostgreSQL's CREATE INDEX CONCURRENTLY — building an index without ever blocking concurrent writes.

gopostgresdatabases

pwa-caching

A PWA app-shell caching playground built with React + Vite.

pwareactcaching

Server-Driven UI

An architecture exploration where the server decides what the UI renders and the client just draws it.

architecturereacttypescriptexpress

server-sent-events

Server-Sent Events end to end — a Node service streaming to a React frontend.

nodesserealtime

tcp-server-in-go

A bare-bones TCP server in Go — accept a connection, spawn a goroutine, repeat.

gotcpnetworking

webRTC

A WebRTC playground — a WebSocket signaling server and a browser client.

webrtcwebsocketsrealtime

zip-compressor-webWorker

Zip compression off the main thread with a Web Worker, in React + TypeScript.

reactweb-workercompression