TL;DR: Parallels Desktop 13 only supports OpenGL 3.2 on an extremely limited subset of mostly games. VMWare Fusion 10 has full OpenGL 3.3 support. In my case, this made the difference between being able to work on a VTK-based client project (VMWare Fusion 👍👍) or NOT being able to work the project (Parallels 👎👎). I bought a Parallels Desktop Pro 13 subscription to be able to do Linux and Windows development on my MacBook Pro.

ob-ipython is an Emacs package that enables org-babel to talk to a running ipython kernel. The upshot of this is that you can use org-mode instead of the jupyter notebook for interspersing executable code, results and documentation. The screenshot from the ob-ipython github shows it in action: Personally, I would like to use this for controlling ipython kernels on remote GPU- and deep learning-capable Linux machines, all via Emacs on my laptop.

RobotDyn offers a well-manufactured Joystick and XBee shield for the Arduino Uno which I am currently using for some IEEE 802.15.4-related experiments. However, as it is not mentioned in any official documentation, I want to document here that the XBee TX / RX lines are connected to the Arduino D1 and D0 lines respectively and can only be disconnected via the “USB sketch update / Wireless” hardware switch at the top left:

In a post from 2014, I showed how to drive the sub-standard HDMI input of the Dell U2713HM 27″ UltraSharp at a resolution of 2560×1440 from the HDMI 1.3 output of a Linux-running laptop. Fast forward 3 years, and I found myself having to drive the exact same monitor at its native resolution via its (sub-standard) HDMI input from a 2017 MacBook Pro through the brilliant HyperDrive USB-C dock. (Apple, USB-C is nice, but you really pushed it too far this time.

Updates Because this matter is still ongoing (Jaxx does not seem to want to fix this vulnerability), I have moved the updates here to the front. The original post is below. 2022-08-14 In order to help a reader who was having trouble with nodejs, I added a section below with a replit setup that you can run with the click of a button. 2018-07-19 Reader Alex points out in the comments that newer versions of Jaxx use a different storage method, and links to this LinkedIn article.

The WordPress Twenty Seventeen theme was exactly what I needed to update the look and feel of the Visible Orbit project website, except for one thing: No sidebar on pages, only posts. For the Visible Orbit website, having the site information and navigation visible on the page-heavy site is quite important: Getting the sidebar to show on pages seems to be a popular question online. Besides just hacking the source, the only nicely packaged solution is this plugin by Joachim Jensen.

For the high-resolution orbital slice viewer on the Visible Orbit website, I had to setup wlziipsrv, a fork of the iipsrv large tiled image server. This is a FastCGI app, which means that, unlike a normal CGI which is started up for each request, one runs a number of these processes in daemon mode, and the front-end webserver communicates with them using the fastcgi protocol. The end-result is this web-based high-resolution image viewer, which you can use to explore several thousands of microsocopic slices of human eyes.