david alfonso

2024

Book review: Performance Testing

My review of the book "Performance Testing", written by Keith Yorkston.

Certbot webroot auth with Ansible

How to make Certbot, Apache, and Ansible, work together to use webroot authentication.

Discourse dev setup instructions

Additional steps I had to take to setup a development environment for Discourse.

2023

Removing all my tweets from X/Twitter

How I batch deleted all my tweets using the free API tier.

E-mail privacy in GitHub

How to make your e-mail private in GitHub repositories.

Updating my Neovim config from upstream

How to pull changes from the upstream Neovim configuration repository.

Using a Lua-based Neovim config

Taking another step in my Neovim journey by using Lua-based configuration.

Signing PDF documents

How to "sign" a PDF document using an image (no cryptography involved)

2022

Debugging PHP in a Docker container

How to debug PHP code running in a Docker container using xdebug and VS Code.

2021

Default resource values in the Python CDK

Finding CDK default values using two different methods.

2020

Forking Watson: License

The process and rationale behind updating a compatible license (MIT/Expat) to the GNU GPL.

POSIX Shell Scripting

Resources for developing POSIX-compliant scripts.

Forking Watson: Motivations

About forking and the reasoning behind my decision to fork the Watson project.

Khal: Codebase review

Code review of Khal, a CLI and terminal calendar program, able to synchronize with CalDAV servers.

2019

PHP 7.2 Docker image analysis

A deep review of the Docker official image for PHP 7.2 with Apache 2.4.

FOSS zombies

My understanding of a FOSS zombie project and what to do about it.

Book review: How to Become an Expert Software Engineer

My review of the book "How to Become an Expert Software Engineer", written by Marcus Tomlinson.

Watson: Codebase review

Code review of Watson, a CLI time tracker built with Python.

2018

Migrating from TiddlyWiki to Markdown

Using TiddlyWiki5 (nodejs) and pandoc to transform old TiddlyWiki's tiddlers to markdown files.