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@aral Genuine question:

If I hosted my own private analytics tracker (something like Matomo (née Piwik), e.g.) just so I could have funny numbers to look at because I like to look at numbers but do nothing meaningful with them, would that require a cookie banner?

I'd pondered about just having a static notice in the footer of my site that just says "This site uses some functional cookies and one (1) tracking cookie for a self-hosted analytics dashboard because I like to look at Numbers™."