Microsoft fixed the Open R Debian package
I just got notice that Microsoft has updated the Debian packaging of Open R to properly use dpkg-divert. I checked the Debian packaging scripts and they now properly divert R and Rscript, and revert...
Microsoft’s failed attempt on Debian packaging
Just recently Microsoft Open R 3.5 was announced, as an open source implementation of R with some improvements. Binaries are available for Windows, Mac, and Linux. I dared to download and play around with...
Git and Subversion collaboration
Git is great, we all know that, but there are use cases where there completely distributed development model does not shine (see here and here). And while my old git svn mirror of TeX...
Hyper Natural Deduction
After quite some years of research, my colleague Arnold Beckmann and my paper on Hyper Natural Deduction has finally been published in the Journal of Logic and Computation. This paper was the difficult but...
Docker, cron, environment variables, and Kubernetes
I recently mentioned that I am running cron in some of the docker containers I need for a new service. Now that we moved to Kubernetes and Rancher for deployment, I moved most of...
Specification and Verification of Software with CafeOBJ – Part 3 – First steps with CafeOBJ
This blog continues Part 1 and Part 2 of our series on software specification and verification with CafeOBJ. We will go through basic operations like starting and stopping the CafeOBJ interpreter, getting help, doing...
Gaming: Lara Croft – Rise of the Tomb Raider: 20 Year Celebration
I have to admit, this is the first time that I playing something like this. Somehow, Lara Croft – Rise of the Tomb Raider was on sale, and some of the trailers were so...
MySql DataTime/TimeStamp fields and Scala
In one of my work projects we use Play Framework on Scala to provide an API (how surprising ;-). For quite some time I was hunting after lots of milliseconds, time the API answer...
Gaming: The House of Da Vinci
Recently the gaming time has dropped close to zero, but The House of Da Vinci was just perfectly suited to my low time burst play mode. A game in the style of the Room...
Debian/TeX Live 2018.20180505-1
The first big bunch of updates of TeX Live 2018. During the freeze for DVD production, several bugs have been found and fixed. In particular compatibility of csqoutes with the shiny new LaTeX release,...
Onyx Boox Note 10.3 – first impressions
I recently go my hands on a new gadget, the Onyx Boox Note. I have now owned a Kindle Paperwhite (2nd gen), a Kobo Glo, a Kobo GloHD, and now the Onyx Boox Note....
Docker, cron, mail and logs
If one searches for “docker cron“, there are a lot of hits but not really good solutions or explanations how to get a running system. In particular, what I needed/wanted was (i) stdout/stderr of...
TeX Live 2018 released
I guess everyone knows it already, Karl has released TeX Live 2018 officially just when I was off for some mountaineering, but perfectly in time for the current BachoTeX meeting. The DVDs are already...
Analysing Debian packages with Neo4j – Part 3 Getting data from UDD into Neo4j
In the first part and the second part of this series of articles on analyzing Debian packages with Neo4j we gave a short introduction to Debian and the life time and structure of Debian...
Specification and Verification of Software with CafeOBJ – Part 2 – Basics of CafeOBJ
This blog continues Part 1 of our series on software specification and verification with CafeOBJ. Availability of CafeOBJ CafeOBJ can be obtained from the website cafeobj.org. The site provides binary packages built from Linux,...
Analysing Debian packages with Neo4j – Part 2 UDD and Graph DB Schema
In the first part of this series of articles on analyzing Debian packages with Neo4j we gave a short introduction to Debian and the life time and structure of Debian packages. The current second...
