Again in illegal copy of Periodical

Thanks to attentive people, I was made aware of another illegal copy of Periodical via Github (

Screenshot of "Period tracker & Menstrual calendar"

In this copy all references to the original as well as the help texts have been removed. In addition, advertising was added that can be removed for a fee. As with all other copies (here, here, here, here and here), I reported the copyright violation to Google and also wrote to the publisher.

Nextcloud Talk: “High Performance Backend” now Open Source

Nextcloud Talk is an extension for Nextcloud that enables chats as well as video conferencing. A decent browser and a webcam are sufficient to use that. You can also use an app for Android or iOS.

With a few simultaneous connections this usually works quite well if you pay attention to a few points, such as using a server for STUN/TURN like coturn (I will write a separate article about this).

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Nextcloud and Netdata with more metrics

A while ago I wrote about a plugin for Netdata which I created for my Nextcloud server.

Luca Olivetti was so kind to extend the plugin by additional metrics – thank you!

The source and documentation are still available at Github.

Note: if you use the plugin already please keep in mind that the configuration has changed. You now only have to define the base URL of the server and not the full monitoring API URL any longer.

USB 3.0 in the year 2020

In the year 2011 I wrote about USB 3.0 for the first time. A few years later again (USB 3.0 today). Meanwhile it is 2020 and a current benchmark of a SanDisk Extreme Pro with 128 GB. To have comparable values again with “HD Tune” but this time with Windows 10.

The hardware used for the test is still the same mainboard which I’ve been using since 2014.

Looking back the values of earlier tests which show the impressive development of about 20 year:

Storage media Read speed
M-Sys DiskOnKey 128 MB (USB 1.1) 0.9 MB/s
Sony 8 GB (USB 2.0) 15.2 MB/s
Verbatim Store N Go 16 GB (USB 3.0) 122.4 MB/s
SanDisk Extreme Pro 128 GB (USB 3.0) 209.6 MB/s