Personal project
Dosto
Internal Python tool that automates the extraction and cross-checking of invoices, credit notes, and delivery notes at a real company.
- Python
- Pandas
- pdfplumber
- CustomTkinter
// hi, I'm
Gustavo Valenzuela
Programming student focused on Python, also exploring retro development in C. I like understanding how things work under the hood and building tools and projects to really learn.
// about me
Who I am
I'm 41 and making a career change into programming, something that always drew me in. I'm currently studying the University Technical Degree in Programming at UTN (Argentina), where I work mostly with Python.
On my own I'm exploring C through a project I'm excited about: porting an arcade game to the Sega Mega Drive. I like understanding how things work under the hood and learning by building.
I've already brought that curiosity to work: I built Dosto, a Python tool that automates tasks we used to do by hand. I'm driven by using code to solve real problems.
// skills
Technologies
What I use and work with today. I'd rather show a few things well than pad the list.
Languages
- Python
- C
Frameworks & libraries
- Pygame
- Astro
- Tailwind CSS
Tools
- Git
- Linux
- Command line
Fundamentals
- Object-oriented programming
- Logic & problem solving
// certifications
Courses & certifications
Courses I've completed along the way. I'll keep adding to this as I do more.
freeCodeCamp
- A2 English for Developers (Beta) July 2026
Santander Open Academy
- Python June 2026
Boot.dev
- Build Asteroids using Python and Pygame April 2025
- Learn Object Oriented Programming in Python April 2025
- Build a Bookbot in Python March 2025
- Learn Git March 2025
- Learn Linux March 2025
- Learn to Code in Python March 2025
Platzi
- Curso de Prework: Configuración de Entorno de Desarrollo en Windows January 2023
- Curso de Pensamiento Lógico: Algoritmos y Diagramas de Flujo January 2023
- Curso de Fundamentos de Matemáticas December 2022
// projects
Projects
Some things I built while learning. Each one has its own page with more detail on what I did and learned.
Personal project
Swapprite
Python tool (CLI and GUI) that replaces the palette of an indexed sprite by picking the perceptually closest color in the CIELAB space.
- Python
- Pillow
- Tkinter
- CIELAB
Personal project Work in progress
TMNT: The Arcade Game — Sega Mega Drive port
C/SGDK demake-port of the 1989 Konami arcade game, with 2-player character select and level scrolling. Work in progress.
- C
- SGDK
- Sega Mega Drive
Personal project
LOGIK//CORE — UTN entrance exam simulator
A single-page app with a spy-terminal aesthetic to train for the pseudocode final evaluation of the UTN entrance course.
- HTML
- CSS
- JavaScript
Guided project
Asteroids in Python
A clone of the classic arcade game built with Python and Pygame, applying object-oriented programming.
- Python
- Pygame
- OOP
Guided project
Bookbot
A Python program that analyzes a text and generates a report of word and character statistics.
- Python
// contact
Let's talk
Have an opportunity or want to chat about a project? Reach me through any of these.