byandrev.dev

Create a Lambda function, connect it to an HTTP API Gateway, and get a public URL.

How to create an RDS instance, make it reachable from your laptop, and why public access is a temporary decision, not a default.

Google was using my nav links as the search result text.

Build a reactive Spring Boot 4 app with R2DBC and WebFlux that streams PostgreSQL rows to JSON and Thymeleaf, row by row.

I trace one HTTP request through my PlazoletaUsers repo, layer by layer, and find where the real code breaks the textbook rules.

Send SMS with Twilio and Spring Boot: a complete Java tutorial covering setup, authentication, REST controller, and working code examples.

I tried Disqus, giscus and Remark42 on my blog before writing Hilo: a self-hosted FastAPI comment backend with GitHub login and nothing else.

A practical deep dive into Cloudflare's Edge Cache TTL.

Learn how to protect your website from EDoS attacks.

Review of Osamu Dazai’s No Longer Human: a read that left me feeling anxious, sad, and as though I had witnessed something heart-wrenching.

Discover how creating custom AI skills for architecture, testing, and reusable components transformed my development workflow, better code quality, less duplication, and faster feature delivery with Opencode and Feature Sliced Design.

Java is one of the most important programming languages in the world, and it's widely used by large companies.

If you've been programming in Java for a while, you're probably very familiar with NullPointerException.

OpenCode Go: GLM, Kimi, Qwen, and DeepSeek models for $5–$10/month.

Sam Altman has said that he finds the comparison made regarding the energy consumption of artificial intelligence unfair, and that no one questions how much energy is used to "train" a human.

OpenCode is a powerful tool, but like any tool, the difference between using it and mastering it lies in the details.

Use AI to learn from books quickly, like Andrés Bilbao from Rappi.

GraphQL is a query language for APIs and a runtime environment for those queries, created by Facebook (Meta) in 2012 and released as open source in 2015.

OpenCode is an AI-powered terminal agent that edits entire projects.

A step-by-step exercise on how to classify customer reviews of products using NLP with the Naive Bayes classifier to determine if they are positive or negative.

Learn what JSON-LD is and how to use this linked data format to improve your website's SEO and appear in Google's knowledge panels.

I built a linear regression model in Python with sklearn to predict salaries: cleaning, splitting, training, and metrics.

Whisper is OpenAI's artificial intelligence tool that has revolutionized audio and video transcription.

Evaluating a model means measuring where it fails.

Application of Fine-Tuning of a pre-trained language model, specifically designed to classify teacher evaluations into three levels of criticality.

Have you ever wondered how Netflix decides what to recommend to you or how an algorithm measures how “good” a candidate is?

Algebra allows us to represent and manipulate real-world problems using numbers.

Process of integrating Gemma 3 into teacher evaluation analysis (SET).

Machine learning is a branch of artificial intelligence that uses mathematical models to learn from data and make predictions or discover hidden patterns without being explicitly programmed.

Ollama is a tool that makes working with Large Language Models (LLMs), like Gemma 3B, much easier.

By default, when a user forgets their password, Firebase sends them to a domain such as your-project.firebaseapp.com.

Stop typing your username and password every time you do a git push, or if you simply want to improve security.

What is Amazon ECS and how to deploy a containerized application using AWS Fargate, an Application Load Balancer (ALB), and API Gateway.

Learn step by step how to build a Docker image and publish it to Amazon ECR (Elastic Container Registry).

Through simple examples and visual diagrams, you will discover how to decouple your business logic from frameworks and databases, improve the maintainability of your code, and write cleaner, more testable, and scalable applications.

The recommended architecture for Android applications with Kotlin is based on the principles of Clean Architecture, specifically adapted for mobile development.

Opening a project's Git history and finding messages like “various fixes,” “update,” or “fixed something” can be a nightmare.

Creating great applications has traditionally depended on both design and development, and bridging these tasks requires significant effort.

Unlike large models such as Gemini or ChatGPT, where information is extracted from numerous web sources that may contain “hallucinations,” NotebookLM relies 100% on the sources you provide, such as PDFs, audio files, YouTube videos, Google Docs, or even a…

After several attempts to adapt my personal blog to Next.js, I have finally decided to stop using it for this project.

Git is an open-source project, originally developed in 2005 by Linus Torvalds, the famous creator of the Linux operating system kernel.

Makefiles are files located at the root of a project that allow you to automate and simplify the execution of commands in the terminal.

In very simple and non-technical terms, machine learning is the science of programming computers so that they can "learn" from the data provided.

A sitemap is a list of the pages on a website within a domain.

Applications can run on different types of processors, Intel/AMD servers (x86_64), ARM devices (Raspberry Pi, ARM servers), and Apple Silicon chips (M1/M2/M3).

Today, I finally decided to resume this project and improve it with the ideas I have in mind.

Step-by-step guide on how to use GitHub Packages with GitHub Container Registry (ghcr.io) to publish Docker images for free.

Linus Torvalds left us with a phrase that goes beyond software development: Talk is cheap.

One of the main drawbacks when working with Java and its ecosystem is managing multiple versions of the JDK.

Here is a list of the best free PostgreSQL database hosting services.