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A simple setup for a Build and Deploy system using GitHub Actions Dec 12 2020

I've been using GitHub Actions on a few projects now, and I find them like the future of what bash scripting was back in the day. I feel I can do pretty much everything in a quick and concise way. In this post, I'll show you the setup I use for a simple...

Set up a macOS Parallels Virtual Machine for security research Nov 16 2020

macOS comes with a good set of predefined security features designed to keep us safe, e.g. System Integrity Protection. These security features are great for everyday use, but they get in the way when we are trying to analyse what processes are doing...

Adding dark mode to a UIKit App Nov 4 2020

First, remember create a new branch for the changes, we can do that using Xcode or the git(1) command-line tool.

The basic support
Allowing the user to set the theme
Storing the user preferences on UserDefaults
Related topics...

Understanding SwiftNIO by building a text modifying server Aug 20 2020

Building a network application requires a good amount of effort, not only because of the complexities of the application you are building but also by the nature of network architecture. We have to define how are we going to handle the connections,...

Building a text-based application using Swift and ncurses Aug 6 2020

The ncurses(3) library powers many popular text-based applications, for example, emacs(1) and htop(1). The use of ncurses is not required to build text-based applications. We could use escape sequences. And for small command-line tools escape sequences...

Generate table of contents with anchors for markdown file - Vim plugin Jul 20 2020

Vim is my preferred text editor, and I do most of my writing on markdown. If you haven't used markdown, I encourage you to try it out. Markdown is a simple markup language that is in common use on the internet for static site generators. The syntax...

How to read passwords and sensitive data from the command-line using Swift Jul 17 2020

Shoulder surfing is a real threat. And we, as software developers, should strive to provide safety to our users. One way to mitigate the inadvertent exposure of sensitive data is related to how we handle the input of sensitive data in our applications...

Understanding the Swift Argument Parser and working with STDIN Jul 7 2020

Operating systems have provided command-line interfaces for decades now, and all but the simplest command-line tools require argument parsing. Due to years of use and refinement, there are many expectations on how command-line tools should handle arguments...

Running a web server on FreeBSD inside a jail Jun 27 2020

Creating a jailed web server is a fun exercise to learn how about jails. If you are reading this post, you are probably already convinced of the benefits of running your services inside jails. A jailed service provides additional security by restricting...