Dairon Medina Caro — GeistHaus

Easily connecting to BEAM Nodes in Kubernetes with kubectl-beam

Dairon Medina Caro Jan 13, 2026

A kubectl plugin that makes connecting to Erlang and Elixir nodes running in Kubernetes pods as easy as running a single command---with full TTY support and Observer GUI.

https://dairon.org/connecting-to-beam-nodes-in-kubernetes/

Estimating software like a Galician

Dairon Medina Caro Dec 18, 2025

Estimating software is absurd. How to estimate like a Galician person.

https://dairon.org/estimating-software-like-a-galician/

Skip the wait - Fast Erlang builds with asdf prebuilt packages

Dairon Medina Caro Oct 13, 2025

How I stopped wasting time compiling Erlang from source and started using prebuilt packages with asdf

https://dairon.org/fast-erlang-builds-asdf/

Editing Kubernetes configurations with the Zed Editor

Dairon Medina Caro Mar 18, 2025

How to edit the Kubernetes configurations confidently using the Zed Editor

https://dairon.org/editing-kubernetes-with-zed-editor/

Formatting an existing Erlang codebase

Dairon Medina Caro Sep 2, 2022

How to format an existing codebase without messing git history. Using an Erlang project with erlfmt as an example.

https://dairon.org/formatting-a-large-erlang-codebase/

Git tricks - worktree

Dairon Medina Caro Aug 24, 2022

How to use git worktree or how to work on different things and not get crazy

https://dairon.org/git-worktree/

Fixing the Erlang observer on OSX with dark-mode.

Dairon Medina Caro Sep 27, 2020

The Erlang observer looks a bit bizarre in OSX when using dark-mode. This guide helps fixing it.

https://dairon.org/fix-erlang-observer-osx-dark-mode/

REST API with Elixir/Phoenix - A beginner's tutorial.

Dairon Medina Caro Jul 6, 2020

Elixir and Phoenix are a very exiting stack running in the Erlang VM. This Phoenix 1.5 tutorial will walk you through creating a simple Bookstore REST API with this platform.

https://dairon.org/simple-rest-api-with-elixir-phoenix/

On IPython and other utilities I use to profile Python code.

Dairon Medina Caro Jul 21, 2018

A brief introduction to IPython magic commands and other utilities to profile Python code.

https://dairon.org/how-do-i-profile-python-code/

Hey command, ping me when you are done

Dairon Medina Caro Jun 10, 2018

A simple bash alias to notify you when a command is done.

https://dairon.org/ping-me-when-you-are-done/

Released a VerneMQ plugin to monitor the cluster using AWS CloudWatch.

Dairon Medina Caro Jun 9, 2018

On how to monitor the VerneMQ message broker using AWS CloudWatch.

https://dairon.org/released-vernemq-cloudwatch-metrics/

Using Faker to make your Python tests awesome.

Dairon Medina Caro Feb 25, 2018

A simple and quick way to generate fake data for your Python tests.

https://dairon.org/using-faker-to-make-your-python-tests-awesome/

Pipenv - Managing your Python projects like a boss

Dairon Medina Caro Jan 7, 2018

A modern Python package manager that solves the problems of dependency hell, separation of development and production, and managing virtualenvs and packages separately.

https://dairon.org/pipenv-python-package-manager/

Setting up a Golang development environment on Ubuntu Linux

Dairon Medina Caro Feb 21, 2016

A simple guide to set up a development environment for Golang on Ubuntu Linux.

https://dairon.org/setting-up-a-golang-dev-environment-on-ubuntu/

Make Short URLs with Python and goo.gl

Dairon Medina Caro Oct 22, 2012

A simple Python function to shorten URLs using goo.gl

https://dairon.org/python-goo.gl-urls/

Send e-mails with attachments in Python

Dairon Medina Caro Feb 11, 2010

A simple example of how to send e-mails with attachments using Python