the admin panel can be renamed. this does not affect the functionality. they are not linked. it may not exist at all
another addition - the system is single-user, it was created for a business card site, not for a blog or a corporate site, there can't be more than one user here. that's the idea, it's made for small net, it's not another wordpress with frameworks, it's created for the simplest tasks
Yes that was what I assumed, but it ideally should be safe without the renaming. Security by obscurity only works to the limited extent.
and by the way - thank you very much for your comments, you really help, I will try to take into account all these points, it is impossible to take everything into account at once, this is a human factor, in general I thought to expand the functionality a little, but you showed me the problems that need to be (and can be) solved. nevertheless, if you have a solution to the problems, you know my email, I will be very grateful. although you have already saved me a lot of time without this. thank you