My turf on the internet on Dr. Óscar Nájera

I spent the last few months building and field-testing a digital ballot system for Toastmasters speech contests, and I’m ready to talk about it in public.

I joined Brendan O’Sullivan on the Toastmasters World Tour podcast to talk about the e-ballot system, the year of getting it approved and tested, and where I want to take it next — including the harder fight I haven’t started yet: making judging transpare…

A mobile-first digital ballot system that replaces paper judging at Toastmasters speech contests.

In a future where artificial intelligence plays an increasingly dominant role in our lives, the traditionally feared narrative of humans being replaced by machines might not be the end scenario.

I self-host some of my git repositories to keep sovereignty and independence from large Internet corporations.

I admire people that write blog posts.

After giving ParenScript another chance I became hopeful of the possibilities for front-end development in Common Lisp.

Europe is regulating itself into irrelevance in the digital space.

As demonstrated in a previous post , you can query checkmk from Emacs1.

I like programming in Common Lisp.

Emacs is more than my favorite text editor, it is building material.

Checkmk1 is an IT monitoring software.

English has the worst spelling I know of.

A while ago, I got all excited around the idea of Bitcoin as art .

A technology survives as long as it serves a solution in a better way than the problems it adds.

From political candidates to job-seekers, humans under selection pressure often try to gain opportunities by hiding their true motivations.

There is nothing like the filter of time.

Various projects in the blockchain space, particularly around the Cardano ecosystem.

Org-mode backend exporters for generating a Curriculum Vita using some \(\LaTeX\) templates, or exporting to markdown for your hugo blog.

Web development is the skill that irritates me the most.

This is NOT a talk about how AI could take over the world and enslave humans, enough dramatic news, policies, and sci-fi novels tell that story.

This is NOT a talk about how AI could take over the world and enslave humans, enough dramatic news, policies, and sci-fi novels tell that story.

Because I can, I recently added support for testnet Bitcoin Lightning payments into this website.

Bitcoin is this strange thing I don’t fully understand.

Colorful text is a must, because we are visual creatures.

I stumbled upon this talk by Jonathan Blow on YouTube and I must share it.

The previous posts covered mathematical curiosities.

When merging the last two posts, I immediately run into serious difficulties.

In this series of posts I’m solving the exercises of Programming Bitcoin1 in Haskell, I’m learning Bitcoin and Haskell in one go.

Bitcoin’s price has gone crazy up, and now I’m really responsible for learning it.

There are plenty of reasons: Get out of your comfort zone, build character, discover your limits.

Bitcoin is all over the news, this time with big investors pouring money into it, a global pandemic that put the economy on hold, and governments printing money like crazy.

When working on the interface to notmuch I stumbled upon the case where iterating over messages and iterating over filenames produced the same code structure only changing the functions being used.

Manually creating the bindings for a sizable C program is a lot of work, also it is not very rewarding.

On the previous post I covered how I can call external programs as new processes and interact with their inputs or outputs.

Most of the pre-processing work of my emails was already solved with a combination of a bash script, which uses the notmuch cli and the python package afew .

I have been using ledger to keep track of my expenses.

In my personal project to learn LISP, I decided to try GNU Guile .

In this workshop I teach how to use the sovereign project.

This article is in German.

I stumbled upon this talk by Douglas Kruger on YouTube.

On November 16th 2019, I held a short humorous speech at the Wordstock festival in Nuremberg-Germany.

This is a short humorous speech for the Wordstock Festival.

Hello everyone, I’m starting a new section of my life and I want to engage on new projects.

I have always been a Free Software fan and I’m always happy to participate in events where I meet like minded people.

Held in German, this talk shows how to use Checkmk and about an interesting use case about it flexibility when it is configured to monitory bee colonies and their honey production.

Vanadium dioxide (VO\(_2\)) is a material that undergoes an insulator–metal transition upon heating above 340 K.

How do you take your summer holidays?

I just stumbled upon this article: To Remember, the Brain Must Actively Forget | Quanta Magazine , and it served me as quite a confirmation bias.

Since I discovered BorgBackup (short: Borg) I have felt way more confident about my backups.