Collatz-conjecture Plot

Small Python-scatch I’ve created for one of my upcoming Drum & Bass-EP for Marc Renton – Signal Waves EP

The source-code is published on GitHub: Feel free to improve it 🙂

For details checkout the Wikipedia-article and the Reddit-article:

Cover for the upcoming Marc Renton – Signal Waves EP

Nextcloud-Docker on Kubernetes-cluster + SSL certificates

Folks, this has taken me ages (ok to be honest – three weeks, which is still a lot ;-)) to get up and running. But finally, I have made it and learned a lot about Docker, Docker-Compose, Nginx and Kubernetes of course.


In this post I am showing how to set up a Nextcloud on Kubernetes + Ubuntu 18.04. I am running a Nextcloud-instance on a public VM to sync stuff with my phone. Another one (with more data) is only accessible via my LAN/VPN. The first one I am encrypting via Let’s Encrypt (open todo!) and the 2nd one via self-signed certificates.

The stacks are set up via Kubernetes to be able to scale horizontally in the future, since I had to live with some performance-issues in the past. GitHub – andremotz – nextcloud-kubernetes Continue reading Nextcloud-Docker on Kubernetes-cluster + SSL certificates

Processing: Sketch Swarm

Once again I had some time travelling by airplane (12 hours), time that I could use to try out some random thought I always wanted to test:

’ve done my own small world with only two rules:

  • Every particle should move to its individual random destination
  • If you touch each other, find a new destination.

That’s it. Continue reading Processing: Sketch Swarm

Homeserver update: The ultimate backup-system

A couple of months my primary harddisk of my Homeserver crashed. As a result I lost the main system which was Windows Home Server. I didn’t want to set up everything again because I thought there will be the same case again – harddrives are born to die sooner or later. So I decided I to set up a more agile system that I can back up easy. A system that can boot up from an attached USB flash drive. So I switched over to Ubuntu Server. Continue reading Homeserver update: The ultimate backup-system