Alexito's World

A world of coding 💻, by Alejandro Martinez

About me

Hello there! My name is Alejandro Martinez, a.k.a @alexito4 since the MSN Messenger days. I'm a Software Developer currently based in the beautiful city of Girona in Catalonia, Spain. I'm currently working as the Mobile Captain of Lifeworks.

I've always loved technology and since I got access to my first computer and internet, I've been sharing my knowledge with it. From personal blogs to podcasts and vlogs!

If you're mildly interested in what I have to share, check out my profiles on the socials:

When not coding

I'm a lucky guy with a beautiful woman and cat by my side so usually you will find us enjoying the time together, probably watching some TV Show.

But when I get some free time, I love to spend it in fantasy worlds. Usually that means playing video games to enrich me with their mechanics and stories, but I love a good story no matter from where it comes so I also devour books and films. And I love to create my own stories too, so occasionally I will write some short story and even run a D&D campaign if the stars and planets align.

About this website

This is my personal website, first and foremost. The content here is about all the things I love, so obviously the vast majority is about development and Swift concretely. But these are not the exclusive topics of the site, so I hope you stick around for the rest ^^.



Unicode(U+00D1) Podcast - Swift Evolution (in Spanish) Listen


On the new Point-Free swift-dependencies library Why am I linking to Alejandro Martinez’s articles on the new Point-Free dependencies library over the official announcement post? When someone takes the time to write about someone else’s work, that’s always a great indication that it’s worth checking out. 👍 I wish it happened more often!

Limit Swift Concurrency’s cooperative pool One of the nice things about Swift Concurrency is its cooperative thread pool. When writing concurrent code you should not think about threads but is still good to know how things work under the hood.

Quotes from Limit Swift Concurrency's cooperative pool

Limit Swift Concurrency's cooperative pool The great thing about using the new concurrency APIs is that we no longer have to think about the number of threads we spawn. However, sometimes you still want to debug scenarios in which threads are limited, for which Alejandro Martinez wrote this great article.

Generating this site with Netlify and GitHub Actions by Alejandro Martinez I found this blog post from Alejandro, and it immediately caught my eye, since next year I am going to be working on the new SwiftlyRush website, did I just say that out loud? 👀

Fluent syntax extensions in Swift by Alexito's Martinez I am in favour of simple code beats over-engineered. It's easier to maintain and easier to digest when that engineer inevitably moves on. However, I am also a huge fan of making sure the code is readable, this article by Alexito is interesting using the framework Then, which enables initialisers easier to instantiate, I am not sure I would run too quickly to adopt this, but perhaps it could work for you?

Fluent syntax extensions in Swift The syntax described by Alejandro Martinez always fascinated me. I’ve never used a framework like Then, simply because I like to stay close to default Swift APIs, but the syntactic sugar it brings is indeed inspiring!

Flow This package from Alejandro Martínez looks great, especially when you need to make a UIKit view in code. There's also a complimentary blog post, if you want more details or some of the history behind this problem.

Building a Channel with Swift Concurrency Continuations | Alexito's World Although proof of concept, it’s fascinating how Alejandro Martinez used the new Concurrency framework to solve his problem. The solution looks like a CurrentValueSubject to me, but async tasks instead. If anything, it’s at least interesting to browse through the sample code.

iOS App Architecture in 2022 In my opinion, there’s no one architecture to use. At WeTransfer, we use a combination of MVC, MVVM, and Coordinators in which we try to use the pattern that best fits the problem we’re solving. Alejandro Martinez shines a light on App Architecture in 2022.

iOS App Architecture in 2022 Since we’re about to start a new year, I thought it would be good to write about what I think it’s the best approach for building iOS apps nowadays.

iOS App Architecture in 2022 A detailed post touching code base structure, modularity, UI, architecture and more.

The importance of cooperative cancellation I'm assuming that everyone here has read between one and ten posts on async/await or Actors this week, so I'm not going to link to any posts on that topic. Instead, I'll link to this fascinating article on cooperative cancellation of asynchronous tasks from Alejandro Martinez. You really should read this one.

The importance of cooperative cancellation with async tasks It’s great to see many articles being published around the new concurrency changes that arrived in Swift 5.5. One important aspect of using async/await is handling cancellation correctly. Alejandro Martinez is here to explain.

Swift Concurrency Async/await and Actors are the most anticipated Swift features everyone's been waiting for, and it is finally coming out in Swift 5.5! I highly recommend this series of videos by Alejandro Martinez, where he gives a comprehensive explanation of both of these features.

Better Dictionary literals with Result Builders I'm really not sure how I feel about this use of result builders from Alejandro Martinez. On the one hand, it's cute and does enable cleaner code in some circumstances. On the other, do you want to put another layer of code behind the process of creating a dictionary? Interesting article, though!

Point-Free Composable Architecture From a first look at this new architecture framework from Brandon Williams and Stephen Celis, I like it. I’ve also heard several good things from people who have been beta testing it. It’s too much even to attempt to summarise it here, so the best way to get up to speed is with this walkthrough video or the example apps. It's also worth looking through this post from Alejandro Martinez on it. That said, I think it’s worth mentioning a couple of points before you jump in with both feet. First of all, this is an opinionated framework, and it’s strict about how you use it. So if you adopt it, don’t try and fight it. Secondly, building your app on top of a third-party architecture framework is a big decision, and it’s usually hard to back out of once an app is in progress. I do thoroughly recommend you check it out though as everything about it is exceptionally well thought out.

To learn details about building reusable buttons,I recommend reading Alejandro's tutorial, which is comprehensive and useful.

- A RunLoop for your Swift script