Barracuda Blues

Deploying Common Lisp to heroku

2 minute read Published:

Ok this is going to be a short post, but maybe someone finds it useful so here it goes.

For testing purpose I really like the heroku platform, you can deploy your application, test it, share it with others to test etc. Heroku has some “official” languages it supports but through the use of buildpacks you can deploy any application.

Visualizing temperature anomalies with Clojure and Oz

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Clojure is an oddball for a lisp. It is quite powerful and opinionated, it works well in the Java and Javascript ecosystem and has good tooling in emacs aka CIDER. For me I prefer other lisps for their more non-opinionated style but still Clojure is a wonderful tool and it seems to have a blossoming community that is really responsive to the modern computing environment. This is especially important since it offers a way for lispers to get their hands on things going on in the world of Java and Javascript without losing the developing expressiveness and experience of a lisp.

So, today I took part in a meeting organized by SciCloj, a group of people conspiring to make Clojure a powerful language for the scientific and data analysis fields. Christopher Small presented his work on Oz, a clojure wrapper around the powerful Vega/Vega Lite libraries.

Prototyping hashtags with Common Lisp

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Common Lisp is really fun to work with. In fact emacs & slime is the best development environment that I’ve ever worked with and everytime I work on something I want to try and create it with CL.

Here I’ll try to share my experiences with how I prototyped my first working example of a simple web application.

Recently I participated in a Youth Exchange where we created some image based propaganda around gender issues. There was then the proposition to create a web application where we could share our pictures and vote between us for what should become public. Plain and simple, right?

Rediscovering vanilla Emacs' text editing

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Being a full-time Emacs user for some years now I’ve gotten accustomed to many packages offered by the community that greatly enhance Emacs’ text editing capabilities. The thing is that Emacs’ only lacks a good editor, or is that so? Here are some packages I’ve stopped using in favor of built-in functionality that I’ve discovered recently.

Getting my hands dirty with GuixSD

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So last week, being bored with Fedora I tried to spice up my computing life with trying the GuixSD. It is a GNU/Linux distro that is built along the lines proposed by NixOS, that is it’s a declarative distro (meaning you declare how you want your system to be and it builds itself this way). The idea behind these systems is quite novel and a good start to understand the principles can be found in the original paper that defined the concept and led to the creation of NixOS.

Executables in Common Lisp

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So after completing (?) the Pleroma bot, I talked about in a previous post I wanted to create a simple executable that would be self-contained and run on any machine. If you have a Common Lisp implementation on a computer it’s trivial to run any program that is bundled in a package, just load the package and then run the appropriate entry function from the repl.

What happens if you don’t have a Lisp installed?

A Mastodon/Pleroma bot in Common Lisp

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I’ve been trying for long to get more involved with Common Lisp as I’ve felt for quite some time that it’s a language with a very nice balance of expressiveness and practicality. Together with the great experience of developing interactively with slime and the huge collection of libraries that exist I think that delving in Common Lisp will be pretty exciting.

After having read Practical Common Lisp (although not yet fully digested the knowledge) and having solved some Advent of Code challenges I thought about writing a bot for announcing my blog-posts in fediverse and specifically in After some research I found this blog-spot that gave a lot of info on achieving almost the same goal I had.

Music monday 4 - War on drugs

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There are these times when every day life seems to be so hectic. Right now between my work in the military, studying the great book “Clojure for the brave and true”, solving Advent of Code challenges as practice to my mediocre Common Lisp skills, hacking away in Rails, trying to be at least minimally physically active and studying math leaves little room for my ever growing Someday to-do list.

Cheap-ass way to enjoy some coldbrew coffee

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Ever since I read a Cory Doctorow’s novel (can’t remember the title it was the one that starts with some kid going to Burning Man) I wanted to try coldbrew coffee. Even from my first tries I was really fond of the taste and the caffeine hit this way of preparing coffee gives.

However the preparation was something that bothered me. In summary coldbrew coffee is very simple. Just leave some ground coffee beans in a jar with water for some time and then filter it. Depending on the ratio of the water-coffee mixture you get either a strong brew that needs to be diluted for consumption or one ready. The main problem here is filtering. It is quite boring and messy. Here I present you a cheap-ass way of dealing with this.

Music monday 3 - The Soft Boys

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So it’s not really monday but last week has been really hectic. Well in fact monday was setting orange and today is prickle-prickle so we are no so far apart from our goals!

English music is where the money’s at, I mean all the great periods of music, early psychedelia,glam rock, punk, post punk, madchester, the early 90s house/electronica, britpop and even big beat have produced some of my favorite music.


3 minute read Published:

So in 2015 this guy called Toby Fox released a game called Undertale. It was a hit because of it’s cheesy humor and unorthodox gameplay and all the other stuff that people loved in this game. I played Undertale extensively and it was a really cool experience, so I’m really happy that there is a second installment in the series. I’m talking about Deltarune!

So I started playing the demo version released like 20 days ago and it is like Undertale but better! Read more only if you don’t care about spoilers, else go play the game and return here later!