The Pyx blog Engineering notes from building Pyx, a local-first investment research platform for macOS. https://www.pyx.finance/blog 2026-09-17T12:00:00Z Nine hosts: everything Pyx connects to, and how to check for yourself https://www.pyx.finance/blog/nine-hosts 2026-09-17T12:00:00Z 2026-09-17T12:00:00Z Every internet address the Pyx desktop app can reach, what each request carries, what it never carries, and a ten-minute check you can run on your own Mac. Jared Watson