What is in my COVID-19 vaccination certificate?

Published: Sep 22 2021

Manually inspecting the content of a French COVID-19 vaccination certificate QR code. The main intent is to show with a concrete example which data is actually included in the certificate.

Push-to-talk in any application

Published: Apr 11 2020

Some scripts I wrote to enable system-wide push-to-talk (for X11 and PulseAudio). Some people might find it useful for the ongoing lockdown.

Systemd-resolved DNS configuration for VPN

Published: Mar 17 2020

Some guidance about configuring/fixing domain name resolution with a corporate Virtual Private Network (VPN), especially OpenVPN and with systemd-based Linux systems. This configuration uses the internal/private corporate resolvers for resolving internal/private domain names while using the ISP resolver for general domain names. This might help if your VPN is struggling these days because of the COVID-19 threat 😷.