M200 as web cams under Linux

Not an actual picture of the EOS M10/M100/M200 [Update 2026.01.03] additionally discusses the M200. Since telework became a reality for me, I have constantly tried to upgrade my audio and visual setup; not for the satisfaction of my own vanity but out of mercy for the people who have to stare at me or listen … Continue reading Canon EOS M10 / M100 / M200 as web cams under Linux →

Ubuntu 24.04 on the HP Victus

This is a short follow-up on Ubuntu 22.04 on the HP Victus [UVC] Hardware support is just as good/bad as with Ubuntu 22.04, so all findings from [UVC] apply here, too. The display manager is still X11, I have not tried Wayland. Video hardware acceleration with VLC and SMPlayer snap installations now works, but requires … Continue reading Ubuntu 24.04 on the HP Victus →

Run an SFTP server in a container

I'm just dumping this here for now; maybe some day a bit of commentary might follow. I needed a quick, easy and (hopefully) secure way to spin up an SFTP server. Since I don't want to get into complex configuration, a Docker container seems a safe choice as it isolates the SFTP server from the … Continue reading Run an SFTP server in a container →

Simplified double push-pull amplifier

There exists a simpler design for the double push-pull amplifier with cross-over compensation [DPP]. A quick recap of the previous design: the input signal is divided into a reference phase and an inverted phase, each phases are amplified separately and drive two push-pull amplifiers [PPA] respectively. What happened so far: while in absolute terms simple, … Continue reading Simplified double push-pull amplifier →