About on João Freitas

The following article explains the concept of revenge bedtime procrastination, how it can happen, the downsides associated and how it relates to sleep procrastination.

The following post is a bit theoretical and is worth reading if you’re delving in the concepts of WebAssembly.

The following article introduces WASM GC: bringing garbage collection to Web Assembly.

The following article covers the life and death of Braid: a payments processing and money pool app.

The following article covers what it needs to succeed in a serverless architecture using Lambdas (AWS).

The following article covers the basics of GPU programming and explains how programs made to run in a CPU are completely different than those made to run in a GPU, both in the execution and programming model.

The following are a set of questions one may ask about his business in order to evaluate if it’s a good idea and if it’s going in the right direction.

The following article covers the cons of GitHub Actions as noted by the author.

In the following article the author explains how having a project template ready to hack on is the primary key for winning an hackathon, since that will enable quick feedback and velocity towards shipping the project.

The following blog post talks about how the author worshiped Google and working there, to knowing what Google has become years later when he finally joined the company.

The following article touches on two different topics: the main one which is how the author and his team created an anti-corruption layer (wrapper) around the Android Gradle Plugin, and the offside one which involves philosophic points such as Nihilism, a…

The following post introduces the term feature factory and discusses 12 obvious signs you’re working in one.

The following blog post talks about emotion and how it plays a critical role in software development (or any other task/job).

The following piece takes on processes and popular big company models that drive product decisions based on number of people in charge of “data-driven” decisions.

The following article is all about AirTag and how they communicate with Apple devices.

The following article covers the steps to build a real world Large Language Model (LLM) based app or architecture, as visioned by GitHub ML engineers.

The following article describes how native CSS now has features that once were only available in pre processors tools like Sass, providing real examples on how some functions can be used and explored.

The following article explains how Erlang/Elixir is designed to provide strong reliability and resilience support for real-time and critical applications.

The following article explains Elixir syntax, features it provides and it’s quirks.

The following article explains the parallelism model in Erlang/Elixir. https://underjord.io/unpacking-elixir-concurrency.html Elixir is the thing I do most of my public writing and speaking about.

The following article covers one of Erlang primitives/premises, really low latency to achieve real-time results, as well as how Elixir takes advantage of it.

The following article explains how Erlang/Elixir VM (BEAM) has the capabilities of providing out-of-the-box support for observability: tracing, telemetry, logging.

The app was developed and built with Compose Multiplatform, a framework to build applications for multiple platforms, without having to rewrite the same code multiple times.

The following article introduces how database queries are formed and executed, and how popular databases behave differently in optimization scenarios, due to how queries are formed in their engines.

The following is the story on how the author managed to create a JavaScript free experience while browsing the web with Firefox.

The following article presents the author ideas in regards Static Site Generators (SSG) and why he ditched them to create his own engine.

The following is the story of how the author was able to find his cousin smartphone in the jungle, where no cell satellite was available.

The following is a write-up on the author’s daily smartphone usage, and how he decided to reduce it without making drastic moves.

The following article is really interesting.

The following are statistics on the usage and adoption of web assembly in different programming languages, applications and use cases in 2023.

The following is an opinion on how people perceive open-source and how the author believes that commercial open-source is right.

The following is a reflection on what’s happening right now in AI development, and how infrastructure to support AI native applications is one of the core investments by companies and startups.

The following articles describes how to setup a notification system for receiving alerts when your loved on boils water for tea.

The following is a bit on web application development specifically for the build phase where bundling of JavaScript files happens (bundling = putting all/some files in a single file).

The following article is a complete rundown on the available API to use and abuse of JVM reflection using Kotlin.

The following is a small guide on conflict resolution.

The following news article covers the current stress of maintaining a sustainable rate of existing bees, as their population is struggling because of climate changes and aggressive farming.

The following article talks about DevOps for app teams, how to setup an Internal Developer Platform (IDP) to fulfill the DevOps cycle, what is and how to mitigate Ops Sprawl, and why you must care about the cloud vendors you will rely on.

The following article describes the journey of Lago reaching the 1000 stars milestone on GitHub.

The following is a take on the recent Bun disruption in the Web development ecosystem.

The following are all the features and updates that Android 14 brings in for developers.

The following bit explains why current AI solutions don’t provide the best UX for common use cases, describing why chat bots are just a way to onboard people in AI tools.

Although an old article (2017), it presents how Kotlin helps promote the Clean Code principles and how it can’t help.

The following is a writeup on the recent buffer overflow found in glibc dynamic loader (CVE-2023-4911).

The following is a interesting take on software complexity and how we design systems.

The following article takes on the issues about data metrics in big organizations, people happiness, salary and how product managers derail a product to save their jobs.

The following is a writeup on the changes to Unified Logs in macOS Sonoma - the system logging viewer for macOS.

The following is an explanation on why practicing algorithm problems improves software engineers mindset, as well as presenting use cases for several algorithms and data structures.

The following is a brief but deep explanation on how Large Language Models work at the atomic level.

The following is the original Scrum terminology, as defined by the authors Jeff Sutherland and Ken Schwaber.