This is cool, however I don’t like that the result is a fixed value. I don’t think a person could take this test and reliably get the same result. This would be a good situation to use a logistic regression.

It is very normalized in the south of Germany, but generally Germany is very pro homeopathy so so it is even subsided by the public health care system.

Half life 1 also! May be the graphics are a bit dated, but for that is the Black Mesa verdion

In my opinion federation is the better peer to peer / decentralized service. Power is not centralized, but everything can be run as efficiently as a centralized service.

Did you implement the search index yourself? I can recommend sonic (a light-weight rust search engine). It supports typo correction, a lot of language, suggestions, etc.

Not an expert: On site loading no, but on propagating data across the fediverse yes, which is much more subtle. On my instance performance is great!