#Emacs dired-sidebar is a minimal alternative to treemacs, which also works fine parallel to treemacs.

However, it lacks full support for treemacs dired icons out of the box and icons are not shown for sub-items of opened folders.

Here is a small LLM generated fix for that: https://gist.github.com/jasalt/16f67a142282ca6163ebd23b81d70164