Deploying the Snowplow backend is non-trivial (to put it mildly) and extremely expensive if you don't want to host it yourself.

€0.02/day and easy enough for anyone with basic cloud skills: https://www.dumky.net/posts/own-your-web-analytics-pipeline-...

(With caveats: This is a toy pipeline. More work required to make it robust and probably not a great option for any site with reasonable traffic. But easy to get started and play.)