I integrated PostHog analytics into this website today. I decided to do so after reading Gergely Orosz's Stats page on his blog The Pragmatic Engineer. He had installed Plausible analytics and made his analytics dashboard public. I thought that was cool and wanted to do the same.
I managed to find a Plausible plugin for Docusaurus v2, which is what this website runs on. But I decided to use PostHog instead. It also has a Docusaurus plugin and a public dashboard feature. I decided so because it is free and Plausible isn't.