open source
packages
@jfrader/observability

Pluggable browser and server error tracking and analytics behind one tiny API. Sentry and PostHog as optional providers, privacy redaction built in, no runtime dependencies.

npm ↗
@jfrader/changelog

One markdown file per change, a CLI and a build that emit CHANGELOG.md and JSON, and a self-contained page for readers. No runtime dependencies.

npm ↗
@jfrader/pwa-updater

Safe new-deploy detection and once-per-version reload prompts for small PWAs. No runtime dependencies.

npm ↗
products
Gamestruments
audio · live

Gamestruments

Adaptive gameplay music library. Deterministic procedural music, with music controls, crossover between genres and a score debugger.

Rust · TypeScript · GDScript

gamestruments.gurisitos.games ↗

Chat With a Website
llm · live

Chat With a Website

Live LLM product: OpenAI-compatible SDK with streamed SSE responses and prompt-injection defence.

React 19 · Node.js

chat-with-a-website.onrender.com ↗