Self-Hosted Block Explorer for BTC/LTC/XMR Testnets

So I whipped up a testnet wallet some time ago. It was using public explorer APIs but I felt something was missing. Testnet explorers are either rare or just kinda neglected. So I created my own: testnetscan.com This thing runs off your own nodes, like Bitcoin or Litecoin Core plus ElectrumX, and for Monero, it uses monerod. It's built with pure PHP and SQLite. No fancy JS frameworks or CDNs. Super strict CSP, no tracking involved. It's AGPL-3.0 licensed. Plus, it has a compatible REST API, so you can easily connect existing wallets and tools to it. Even a light wallet can use your own instance. Pretty neat, huh?