Juan Villegas

Juan Villegas

Dev Playground

Integration labs and technical demos.

PostHog

Feature flags demo

This page is the example. Play with the upper-left PostHog panel to see feature flags change the UI.

  • HTML
  • PHP API
  • PostHog
Open example
Supabase

Books app

A books library with magic-link authentication and persisted data in Supabase.

  • React
  • Supabase Auth
  • Postgres
Nango

Integration debugger

A debuggable pipeline that processes a message with AI, handles OAuth through Nango, and syncs to Google Sheets.

  • Node.js
  • Express
  • Nango
Resend

Daily Briefing

An AI-analyzed morning email of the latest GitHub changes across Resend, Supabase, and Nango.

  • TypeScript
  • Express
  • Resend
  • OpenAI
Tavus

Interactive Resume

Click interview-style questions and talk face-to-face on video with an AI persona powered by Tavus.

  • React
  • Express
  • Tavus
Inngest

Service Pulse

Pulse public status pages from one UI and model how Inngest orchestrates checks, retries, and incidents.

  • TypeScript
  • Express
  • Inngest