Saul Hernandez Lara
Information Technology Engineer passionate about learning and exploring new technologies. I enjoy experimenting with different programming languages and frameworks while building projects that deepen my understanding of software development. Self-taught, hardworking, and optimistic about the tech world.
Some of the noteworthy projects I have built:
Automatically generate SVG cards from your latest Hashnode articles and update your README with them using a GitHub Action.
A lightweight HTTP/1.1 server implementation supporting request routing, file operations, and compression with a process-per-connection concurrency model.
Building a Claude-style coding agent in JavaScript while exploring LLM APIs, tool calling, and agent loops.
A Python-based lexical analyzer with a Tkinter GUI for tokenizing source code, handling syntax errors, and visualizing tokens.
The skills, tools and technologies I am really good at:
Javascript
C Sharp
PHP
HTML
MySQL
GitHub Actions
Docker
Git
In this section, you’ll find technical articles, tutorials, and development notes about backend systems, automation, and tools built from scratch.
Claude Code From Scratch - Part 2
In this second part of "Claude Code From Scratch", I continue my exploration of how LLM APIs work by implementing an agent loop that supports multi-step tasks, tool calling, and tool integration withi
Claude Code From Scratch - Part 1
I'll be sharing my journey during the process of a Claude Code from scratch. In this first part, you will get a high-level sense of what LLMs are and why they’re useful. We'll set up access to an LLM
Step-by-Step Guide to Creating an HTTP Server in C# - Part 3
In this post, I'll be sharing my journey of developing an HTTP Server from scratch. The focus of this post will be to integrate a Dockerfile into the project. As I am currently learning about Docker, I aim to use containers in this project. About Doc...
GitHub Actions for Enterprises - Week 6
In this post, I'll be sharing my journey through the GitHub Actions Bootcamp. The purpose is to share all the knowledge learned during this bootcamp. I'll be following the Github Actions Bootcamp. The main goal of this free initiative is to help deve...