astein aka ahokcool

✌️ Oye, I'm Alex — an alumni of 42 Lisboa (2023-2025).

Here’s an overview of the projects I completed to successfully finish the 42 Common Core. Feel free to explore my work — and don't hesitate to reach out if you have any questions, feedback, or collaboration ideas!

• A collection of C functions that are often used in various 42 projects.
• Functions include a mix of standard C library functions and additional utility functions.

• Efficiently reads a line from a file or standard input until a newline character is encountered.
• Handles multiple file descriptors simultaneously.

• Replicates (parts of) the printf function from the standard C library libc.

• Install a Virtual Machine and discover the basics of system and network administration
• Setting up a simple Wordpress web server

• working with the API of a graphics library
• understanding points in 2 and 3 dimensional space, vectors and trigonometric functions
• Bresenham's line algorithm
• Using a rotation matrix to transform coordinates

• working with stacks
• bubble sort
• radix sort
• recursion

• UNIX Signals
• C signal handling

• multithreading in C
• race condition
• C mutex lock
• deadlocks

• Recreate the bash shell. This is a huge project, so you should go check it out. ;)
• multiprocessing in C
• handling fds & pipelining
• handling UNIX signals
• and a lot more :)

• ray casting
• the software design pattern model–view–controller
• digital differential analyzer (graphics algorithm)
• vector handling including: addition, rotation, normalisation
• calculation of perpendicular and euclidean distances

• NetPractice is a general practical exercise to let you discover networking in a playful way. The goal is to configure small-scale networks.
• TCP/IP, Subnetting, Routing, etc

• 10 projects to get an extended basic understanding of the programming language C++.

• Creating an IRC server from scratch in CPP

• Creating a docker network with multiple services in a virtual machine
• Docker, Docker-Compose, Debian, MariaDB, Wordpress, Nginx

• Full-stack web application: real-time multiplayer Pong game.
• Frontend built with Vanilla JavaScript and Bootstrap for a clean SPA experience.
• Backend powered by Django and Django Rest Framework with JWT Authentication.
• Real-time features using WebSocket connections.
• PostgreSQL database managed through pgAdmin.
• Rootless Docker setup used for containerized development and deployment.
• Live Chat system for messaging between users.
• Remote multiplayer games with friend invites and matchmaking.
• Tournament management system: organize and participate in competitive brackets.
• RESTful APIs, secure authentication and profile management

🔝 back to top 🔝