no-littering VS bicycle

https://github.com/emacscollective/no-littering

Check out tarsius_/no-littering.

Look up the no-littering package.

btw, I'm using the https://github.com/emacscollective/no-littering package to determine the location of the custom.el: https://github.com/onetom/onetomacs/blob/main/lib/use-no-littering.el

i use the package no-littering, it's change the default directory for temporary, backup and others files created by packages to two dir, etc and var, so the ~/.emacs.d and buffer directory keep clean from this kind of files

https://github.com/emacscollective/no-littering this moves the backups away, iirc. but I remember from some Emacs videos, that some ppl actually keep all their backup files, so they can grep them, in case they overwrite something, which they haven't committed into version control.

I do use no-littering that doesn't appear to be hiding anything. ~/.emacs.d/var/bmkp/current-bookmark.el contains my bookmarks. Thats the only file there.

re keeping it clean : https://github.com/emacscollective/no-littering

I finally found a way to organize my huge init.el. Outline-minor-mode, together with https://github.com/tarsius/bicycle and https://github.com/tarsius/outline-minor-faces/, make the following nice view.

The bicycle package makes things a little easier to manage/bind.

I'm certainly sympathetic to these kinds of problems. I agree with @plantarum that you seem to be doing what needs to be done though. But one further thing might be to search for simpler package implementations of what you need. For example, I used to use Outshine but now use bicycle and outline-minor-faces, which do everything I wanted Outshine to do without any of the headaches. They might be worth a look.