About on João Freitas

The following is an article on software source-code readability.

The following is a short snippet on how to perform a clean restart of a Docker container/instance.

The following bit is about self-hosting and hosting software for others.

The following article provides a step by step walk through to implement LLaMA (“foundational large language model” by Meta AI) in Python solely using the paper.

The following is a tutorial on how to serve a LLaMA 2 API for free using Google Colab.

The following is a write-up on how a company lost $62K and ton of time trying to enrich their SEO presence via a SEO agency.

The following is a set of tips for writing/sharing/learning in public.

The following is an in depth, but really good explanation of Large Language Models (LLMs), describing what exactly they are (programming and file perspectives), how you can use them, how they are made, their classes, existing LLMs and more!

The following articles explains the concept of Memex, it’s history and how effective it can be.

The following is a write-up on how the author managed to embed an animation in type font.

The following is a comprehensive guide on how you can setup a Linux Desktop Environment using an Android phone and Termux.

Below are five ways to increase an API performance.

The following articles talks about the ultimate measure to fix procrastination: putting yourself at the shame of others.

The following is a review on new official HTML elements that power a more semantic web.

The following articles explains the problem of data consistency and replication when deploying instances on the edge.

The following articles discusses a common pattern that software engineers fall in related to leaving a project moments before crossing the finish line.

The following is a definition of makers, what they do, their motivations and their usual life-cycle.

The following is a summary on attestation and Web Integrity Environment, a new proposal by Google and Apple to verify servers.

The following is also a write-up on zen bleed, but specifically on the measures Cloudflare is taking to mitigate the Zenbleed vulnerability on their machines.

The following article is a write up on the AMD Zen processors data leak vulnerability, detailing how it’s possible to occur and exploit, and why speculation attacks may be on the rise.

The following is a write up on a huge NPM server side vulnerability, which allowed any bad actor to impersonate different packages.

The following is a story about how an accountant beat the math behind the lottery in several countries.

The following article details how to implement a simple JVM from a design and Rust perspective.

The following article describes how Large Language Models (LLMs) fit in the open-source world, covering LLaMA2 and why it isn’t as open-source as we think.

The following article provides a basic introduction on how SVG works and you can use it to create charts without the need for external libraries.

The following article explains what are type guards in TypeScript, why they are useful for compile time checks and you can use them to improve your codebase robustness.

The following article explains how to setup Android Cuttlefish emulator, which is an Android Open Source Project (AOSP) emulator that can be run in headless mode (no ui).

The following is a rant of a security research on most Enterprise Linux distributions that are offered today.

The following article explains how to setup and manage your own server infrastructure, with only systemd, unix and nginx.

The following article explains the main differences of Display Port and Mini Display Port.

The following articles explains the steps a researcher took to reverse engineer and find the flaws in a E2E encrypted messaging app.

The following article explains the Saga pattern, commonly used to design microservice systems.

The following articles explains the concept of the outbox pattern and streaming database in the context of a micro-service architecture.

The following articles discusses the the pros of adopting Trunk-Based Development as the branching model for tight collaboration between team members.

The following article explains why engineers should put some hours into writing, instead of writing code all day.

The following articles does an in-depth description of what is Kotlin type system, how it works, and why it’s design promotes a seamless, fast developer experience.

Not a read per say, but it’s a cool tool to find the features you can use with different browsers dev tools.

The following article describes the .well-known directory and the use cases existing tech is built around it.

The following article discusses the common failures when implementing billing models for an early product/startup.

The following article explains what is Call Site Dependency Injection (CSDI) and how using it in Rust benefits in achieving a safer program architecture.

The following article does a slight comparison of the hot programming languages Zig and Rust, in combination to going in depth on the features which language outstands when building a distributed database (TigerBeetle).

The following is a set of steps that will help you achieve running a Goldfish (Android Studio) emulator in an headless way in the cloud.

The following article describes OpenAuto: a tool that emulates Android Auto on a Raspberry Pi.

The following articles presents a set of rules every web frontend project should comply.

The following article explains the concept of components islands/island architecture used in web development.

Ukoreh is a web tool that allows Flutter developers to deploy their projects as web applications, using only their GitHub repository link.

The following article explains several ways and tools a person can use to successfully intercept an Android Application HTTPS requests.

The following article presents a blueprint for system design and explains the major domains and components that a system can be composed of.

The following article explains the biggest disadvantages of using an ORM, rationalizing on why people bash it’s use or calling it an anti pattern.

The following is a description of the common term used in Software Engineering called “Bus Factor”.