The default UID of the first user in a linux system has a UID=1000. If you have more users this UID is incremented. If you mount a filesystem like ext4 that has stored permissions you can have data that is not accessible to other users.

The problems start when you…

Here are a few tip for working with USB webcams on a Raspberry Pi

Surprisingly there are not many direct hints how to work with USB webcams on the Raspberry Pi. All the available resources focus on the Pi Camera.

How can you check you webcam is working?

You can use some online tools like https://webcammictest.com/ But there…

Human memory works very intermittently and in strange ways. Not good in remembering exact things, but I find it easy to remember things when surrounded with some context.

Once I needed to look up a file in a zip archive i remembered very well that I certainly downloaded and saved…

… and create a handwritten signature image for signing documents …

Sometimes you want take a picture of an item and have it without the distracting background to be able to use it in a document or presentation, or maybe you want to create an image file of your signature…

A bit of retro-computing and computer archaeology.

Thiemo Schuff / CC BY-SA 3.0 DE

Working from home resurrected a need for a working printer. My main printer is a very seldom used old LaserJet 1018. But the print quality deteriorated during the years. …

Miki Prascak

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store