Blog on Bruno Arine

Today I learned that it’s possible to make Emacs narrow down the buffer to just the subtree (i.e. the “heading”) you are working on, so that only that region becomes visible to you.

Today I learned it is possible to sign a form and request OpenAI not to store your API calls.

Today I learned that you can grab the output of any shell command and insert it directly into Vim.

Today I learned that VSCode has some nifty ways to navigate through your codebase.

Today I learned about the nifty GroupShuffleSplit class from the scikit-learn library.

Today I learned that Python has built-in functions to assess whether two sets are disjoints (i.e. have no elements in common). set1 = {1, 2, 3, 4} set2 = {3, 4, 5, 6} print(set1.isdisjoint(set2)) False Alternatively, you can use the intersection() func…

Today I learned how to make Org-mode tags stay at the end of a line in a document, as if they had a float: right CSS property.

Today I learned how to mount an Azure blob on Databricks.

Today I learned that you don’t need to restart the whole cluster just to refresh your Jupyter kernel.

Though distributed computing is a first-class citizen on Databricks, sometimes you just want to run a quick experiment on a single node.

Current baluns and voltage baluns have similar performance to symmetrical antennas like horizontal dipoles and yagis.

Today I learned that your Arch Linux installation can suddenly stop getting updates, and you won’t be notified about it.

At least according to this picture:

Rain can heavily affect an antenna’s resonant frequency.

Today I learned that due to magnetic anomalies, airwave propagation to Alaska doesn’t peak at a straight line.

Today I learned how to switch screens via keyboard on an Ugreen HDMI KVM switch.

2024-10-14 For the past few weeks, I’ve been talking a lot about neurodivergence with one of my good friends.

This example uses environment variables.

According to a joint study involving Smartbear Inc. and Cisco, the developers’ capacity to find bugs in a pull request drops exponentially with the quantity of lines of code under review.

First install the appropriate Python version: pyenv install <version> python local <version> (inside dir) Then create a new environment like this: pyenv virtualenv <version> <project name> Now inside the project’s dir: pyenv local <project name> Exampl…

When Emacs first visits an Org file, the global state is set to showeverything, i.e., all file content is visible6.

I woke up this morning, grabbed a cup of coffee, sat on my porch, and decided to leave Twitter.

One easy way to get feature vectors is by removing the last layer from a pre-trained image classification neural network.

As of the date of this note you can simply use the Gmail SMTP server, as long as you use Google two-step authentication.

Despite all the included batteries in Doom Emacs, I still wanted a way for the agenda view to refresh whenever I made a change to my agenda files.

Dynamic typing is cool and convenient until a typo gives you hours of headache.

I asked a few people what would happen if a photon hit an electron without the necessary energy to excite it to a higher energy level, and each person suggested a different outcome: the photon is absorbed by the system, increasing the atom’s kinetic energ…

To merge a Repo B into Repo A as a subfolder, run this command inside Repo A: git subtree add -P $prefix $repo $rev Set prefix to the name of the subdirectory, repo to the clone URL of Repo B, and rev to the revision of Repo B you want (HEAD if latest).

Considering what I’ve been putting in my Zettelkasten and the goals I intend to achieve with it, I’ve concluded that I don’t want a perfect Personal knowledge management system, but a reasonably good, aesthetically pleasant micro-blogging platform with he…

Figure 1: Photo by Artem Podrez from Pexels Hospitals and clinics see early hospital readmission of diabetic patients as a worldwide, high-priority health care quality measure and target for cost reduction.

Recently, the Brazilian government boldly claimed through official channels that the country is the sixth most successful in terms of COVID-19 vaccination, ahead of Italy, France, and even Germany.

Substance abuse hurts.

I’ve always loved the idea of talking to people abroad.

Inspired by Venkatesh Rao’s 100-opinion brainstorm Twitter thread, I decided to put into words all my salient opinions about environmental gamma-ray spectrometry as a self-assesment exercise.

I learned to love Emacs.

There seems to be a module in my brain responsible for making sense of my experiences.

What does it take for an idea to be both useful and original?

There’s been a disturbing trend in the media when it comes to COVID-19 charts: nearly all agencies have been graphing pandemic statistics on a logarithmic scale.

This book has become a watershed in the way I consume information.

There are two kinds of uncertainties.

Hi!

Instead of dividing the brain up into “ego”, “superego”, and “ID”, a more accurate and — why not — fun division would be based on a much larger number of “modules” that resemble characters in a political game, including “The President” and “The Press Secr…

I started having therapy sessions in 2016, and it was one of my best decisions in all adulthood.

In a blog post on Vividness titled “Buddhist ethics is a fraud”, in which the Tantra Buddhist and MIT artificial intelligence expert David Chapman sets forth his theory on how modern Buddhism became a “collection of self-aggrandizing strategies for gaining

I have always been fascinated by utopian novels.

This is a Now page!

After a couple of let downs, I decided to give Taleb another shot—and I’m glad I did it.

I had first heard about Martin Berkhan in 2013.

Colloquially known as gnashing or grinding of teeth, sleep bruxism is mainly characterized by “rhythmic masticatory muscle activity” (RMMA) at a frequency of about once per second, and also with occasional tooth grinding.1 The chewing movement of our jaws…

When I was a boy, I remember seeing on TV people having serious hang-ups because of “moral dilemmas”.