Ask HN: What are open source alternatives to Google analytics?

Check Countly's [1] open source Community Edition [2] which can be deployed on a Digital Ocean instance easily [3]. Also here [4] is an explainer video you may want to check.

[1] https://count.ly

[2] https://github.com/countly/countly-server

[3] https://marketplace.digitalocean.com/apps/countly-analytics

[4] https://youtu.be/sQCUNSzfEW8

We use https://github.com/usefathom/fathom (or rather their paid product https://usefathom.com/)

You could try matomo / piwik, if you want to host your datas (including GDPR functionalities)

Matomoto is Great and was developed with the German Privacy Law in mind. Which was already as strong as the GDPR now.