@xuu@txt.sour.is I think it is more tricky than that.
“A company or entity …”
Also, as I understand it, “personal or household activity” (as you called it) is rather strict: An example could be you uploading photos to a webspace behind HTTP basic auth and sending that link to a friend. So, yes, a webserver is involved and you process your friend’s data (e.g., when did he access your files), but it’s just between you and him. But if you were to publish these photos publicly on a webserver that anyone can access, then it’s a different story – even though you could say that “this is just my personal hobby, not related to any job or money”.
If you operate a public Yarn pod and if you accept registrations from other users, then I’m pretty sure the GDPR applies. 🤔 You process personal data and you don’t really know these people. It’s not a personal/private thing anymore.