Personal tool · Node.js · 2026

Wishlist

Watches prices and stock across Spanish stores and alerts me on WhatsApp when a product drops below my target price.

Status: Private tool
Year: 2026

Designed and built by me, pair-programming with Claude Code.

Private tool

Wishlist home with example data: a 1 TB SSD under its price limit, with the cheapest price per store for each watched product

What it does

Watches products (SSDs, a PS5…) across PcComponentes, MediaMarkt, El Corte Inglés, Carrefour and Amazon.
Sends a WhatsApp alert when a price drops below the target. Refurbished items are tracked separately.
A dashboard with price history per store as step charts.
A per-product filter editor with a regex tester.
A log page with every HTTP call and error.

Highlights

Runs 24/7 on a VPS as a systemd service.
The dashboard is private, behind Cloudflare Tunnel and Access with Google login.

How it’s built

Node.js
Vanilla JS dashboard
systemd
Hetzner VPS
Cloudflare Tunnel + Access

Status

A personal tool, so there’s no public demo. The screenshots show the real dashboard with fictional data.