We all use git all day long! But like often happens, we don’t use many powerful features, because, who’s got the time? Linked are a set of explanations of newer git commands that many people including me don’t use. Some of this is quite advanced. Worth reading.

Julia Evans continues with her tour the force in depth explainers about how git actually works.

A great step by step introduction to ASYNCIO in Python for cleaner concurrency and synchronization.

This is a quite interesting letter, advocating the creation of a privately owned data store for every user of the web. It’s a grand vision coming from somebody who has huge influence. that someone is Tim Berners-Lee, the so-called inventor of the World Wide Web. By the way he used the NeXT…

An update on vscode for ruby and rails. This stuff is covered all the time but it’s worth seeing it again because the world changes and the recommendations also change.

Useful information about low cost LIDARs.

Interesting because it is comprehensive. However with that level of detail comes a great risk of inconsistency caused by evolution of the building blocks.

This is one of my favorite, super-simple, guides to creating nice designs. These elementary rules-of thumb go a long way to making professional looking designs - or just avoiding the most obvious design mistakes. And of course, because design is subjective, you may have very different opinions.

Nice article but I disagree with the conclusion. I have found that you need to combine the two and go back and forth. There is no single way. By the way, notice that if you believe in TDD, that approach generally starts bottom up (UNITs are at the bottom.) so whatever design comes out of that…

“The Shirky principle is the adage that “institutions will try to preserve the problem to which they are the solution”. More broadly, it can also be characterized as the adage that “every entity tends to prolong the problem it is solving”.

I’m not recommending this as I have not tried it. But it could be something useful for my project and yours.

This week we are revisiting “The Psychology of Human Misjudgment" an essay by Charlie Munger. In this essay, Munger discusses a series of 25 Cognitive Biases that induce human misjudgment and provides some of his famous mental models to counter this innate behavior.

It's a great read full of…

One of many articles helping with the math of computing pose from aruco markers. Unfortunately the algorithms are different and give different results.

By the way the Automatic Addison web site is a treasure trove of robotics ideas, explainers and code.

Everything you want to know -- well I am exaggerating -- about sticky things. I discovered this while working on mounting photographs.

More than you ever wanted to know about how the PiCamera works. As usual, things are more complex than you expect when you get into them!

Very useful tool to work with camera parameters. I don’t even know what v4l2 is, but all kinds of camera parameters can be displayed and changed.

Really Important package to allow you to calibrate the camera. It is here because I lost it for a while (forgot the name) and now I found it again!

A pretty comprehensive tutorial about using OpenCV in ROS Robotics algorithms,

Downloadable textbook about Mining of Massive Datasets by Jure Leskovec, Anand Rajaraman, Jeff Ullman.

This is super useful for rails apps. Will it work for other frameworks like Sinatra? I haven’t tried this yet but it looks promising.