Trademark

Please use this photo, it's like my trademark. I use it on Twitter, on Facebook, and elsewhere on the web, so that people can recognize me easily. This great picture was shot by Lukáš Hudeček.
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LinuxDays 2024

I'm a regular speaker at LinuxDays Prague. This is how I smile before I start talking about something not so funny, like for example supply chain attacks. Photo by Petr Krčmář.
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LinuxDays 2026

Too optimistic? Use this one. It's from LinuxDays 2026 and was taken once again by Petr Krčmář.
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In the office

Taken in Skype Prague office back in the day.
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Speaking

This photo was shot at WebTop100, when I was talking about web performance and security.
