I'll write about the tags later. This is the body of the topic. Are there really not 15 characters?

The new topic will contain only a single idea. This is the so-called atomic approach, which is used in the well-known method for creating a personal knowledge base, Zettelkasten.

A bit about myself. I have been working in IT for over 40 years. Throughout my career, I’ve worked as a programmer, and more recently as a system administrator. Very often, a problem needs to be solved urgently. Otherwi…