Here I share my notes and code/configuration snippets collected over the years from various sources in the internet as I learned about things. Intended as a compact cheat sheet to quickly lookup precise details. Shared in hope they could be useful to someone.

Short introduction to GNU Emacs.
My Emacs configuration file.
GNU Operating system.
Data encryption and secure communication.
PostgreSQL database.

Svjatoslav Agejenko homepage. svjatoslav@svjatoslav.eu