Eight sites, one author.

What each one does, in one line.

Four habits behind all eight.

1. Start from data someone can check

   Listings come from open or official sources — Overture Maps for AutoCidade, the CNES/DataSUS registry for SaúdeCidade — not from scraped pages. When the source updates, the site can be corrected.

2. One engine, reused

   SaúdeCidade went from zero to production in 7 days because it reused the directory engine already running AutoCidade: same binary layout, different ingestion and editorial layer.

3. Write what people actually search for

   Prices, rights, schedules, how-tos. SaborCidade explains couvert and the 10% service charge instead of reviewing dishes; CasaCidade publishes what home services cost.

4. Measure the traffic, then choose

   Instrumenting AutoCidade showed Bing sending roughly 28× more visits than Google for that content, so indexing was rebuilt around Bing and IndexNow instead of Google defaults.

Where this connects.