In standard SQL fashion (koyu.space uses PostgreSQL) users are getting a number. This number is easier for computers and programmers to process as you don’t have to type out changable values like an e-mail adress. It just saves time hunting your software for bugs.
My number in the koyu.space database is “1”. This is also why the favicon is a 1.
This is pretty unspectecular for advanced computer users, but it’s just something I wanted to write down for all the people who don’t know it.