This web site has been designed for people and companies who are concerned about their privacy, and the security of their data.

Jiří Navrátil, is a #Unix #sysadmin, #Python and #Rust with #PostgreSQL #backend #developer.

Jiří Navrátil, is offering consultacy and mentoring in this matter. Jiří can also provide hosting or create self-hosting on physical hardware with OpenBSD operating system.

English articles, open letters and slides from Jiří Navrátil:

• Apple is slowing down old MacBook
• Microsoft do not deliver emails to servers secured via Greylisting
• Is OpenBSD usable on a laptop? from OpenAlt 2023

Other web sites in Czech language owned by Jiří:

• personal web site in Czech
• psychological coaching

Jiří Navrátil <jiri@navratil.cz>