At moment, My family do not need Internet for the children, because our Family gatherings involve board and card games. We even do not watch TV. I would like to try pen and paper games like dungeons and dragons but in my neighborhood there is no group where I could fit in and train. ( and find a fitting game )

Never heard about that. I will look into that. Thanks!

Not compromised. But my key is around 20 years old. I’m a family admin and support my family since then with Linux and some selfhostung services.

Meanwhile I need an identity provider or something else and in any case ssh feels like a more of a pain to manage.