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Hey there!

I'm Maurício Witter, I am a software developer from Brazil, currently living in the city of Constantina. I love functional programming to create beautiful compositions that form declarative code. Additionally, I like contributing to open-source to create tools that help everyone.

My main knowledge in technologies are Typescript, Node, Docker, React, Svelte. I am also comfortable using Vue, Golang and Java. Nowadays, I am studying Rust and Elixir.

My main abilities include designing APIs, command-line interface, applying software testing methodologies, API modeling following software design principles, and refactoring code into nice abstractions.

Currently I have been studying Distributed Systems, concepts such as consensus, micro-services, pervasive computing, observability and open-telemetry.

pgp views wakatime


Ever since I joined GitHub 5 years ago, I pushed 3206 commits, opened 14 issues, submitted 194 pull requests, received 39 stars across 67 personal projects, and contributed to 11 public repositories.

Here is a list of some of my open-source projects:

Name Description
Illusion Vscode A dark theme for VSCode
Fish Abbreviation Tips Fork of fish abbreviation tips to add some features and fix some bugs
Findit A command-line tool to advanced search in your favorite search engine
Illusion Spicetify A dark theme for Spotify
Breview A desktop application to navigate and show your bookmarks in a pretty way like mega.nz
Cnpj-ws Fork of cnpj-ws to add some features
My Blog Static website that uses TS/Next.js and ISR (Incremental Static Regeneration) and GraphQL
Exterm Extension for VSCode to open directories in the external terminal
Jhonny A website for a musician and composer
Covid-Insights Pretty charts and insights about the Covid-19 pandemic in Brazil
Telegram Space Picture Bot to send the space picture of the day from NASA to your Telegram chat
Dotfiles My Arch/Awesome WM dotfiles

For other projects, check out my GitHub profile.


I regularly write blog posts about topics that pique my interest. For all my latest updates, follow me on X. If you have job-related inquiries, please don't hesitate to connect with me on LinkedIn.

LinkedIn Site Substack Github Telegram

~ rwietter

Maurício Witter's Projects

my-awesome icon my-awesome

Open-source project to create lists with your favorite links and content

proffy icon proffy

This project is intended to connect teachers and students

prometheus-express icon prometheus-express

Configuration for local usage of Express with Prometheus and Grafana using Dockprom

reqcnpj icon reqcnpj

Reqcnpj is a project developed during the Information Systems course. The project was developed with nodejs and express on the backend and PHP on the frontend. It is used to consult information on a CNPJ.

rwietter icon rwietter

Dynamic local repository with personal information and daily computer stats, such as Kernel Version, Uptime, Memory Usage, Last Commit, and Moon Phase.

rwietter.xyz icon rwietter.xyz

Welcome to my personal blog repository! This feature-rich platform includes RSS feed integration, PWA, a sleek dark theme, multi-language support (i18n), and much more. Join me on this journey of continuous learning and exploration in the field of software engineering.

telegram-space-today icon telegram-space-today

Space Today é um bot para telegram que permite visualizar direto do celular as imagens da Nasa Picture of the Day (APOD)

trackd icon trackd

Trackd is an informative platform displaying weekly dental appointment availability at public health centers. Accessible to users, it provides information on available time slots and dental services. Trackd enhances public dental healthcare awareness and planning.

trackly.fm icon trackly.fm

A clean, simple, and easy API for tracking your music listening in real time using Last.fm. If you're connected to Spotify, it will also track your Spotify listening.

ufsm-udp-protocol icon ufsm-udp-protocol

Activity of the Computer Networks. This project aims to create a Client/Server model so that information is exchanged through the UDP protocol of the transport layer of the TCP/IP Model

vivoads icon vivoads

Vivo Next is a service to facilitate the use of Vivo Ads, with which it is possible to obtain data packages through the available campaigns.

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