Progress migration to Slackware.

All articles original written for Arch Linux are now converted to Slackware, or are now more or less universal articles. Only the article about VoIP base installation needs more work. Most Slackware based packages are available now on the Slackware extra download site.

I am planning to add a whole new series of articles, Sound engineering and Sound on Linux. For a bit over 40 years I do things with sound, music and bands. That means I have seen everything from tubes to digital sound processing. Computers, and so Linux too, are becoming more important on sound production. In the studio this is already for a few years, but now it is more and more used for live sound as well.