Things I've built

Pageclock (opens in new tab)

mq-gabs/pageclock

A reading tracker: log books and reading sessions, then see pages, reading time, speed and streaks.

• Nx monorepo with a Next.js web app, an Express API and SQLite through Drizzle ORM.
• Business rules and stats math live in one shared package as pure, tested functions.

• TypeScript
• Next.js
• Express
• Drizzle
• SQLite
• Nx

LOROTA (opens in new tab)

mq-gabs/lorota

A multiplayer bluffing trivia game for 2 to 4 players, in Brazilian Portuguese.

• Real-time rooms over Socket.IO. The server owns the game phases and every timer.
• Clients correct for clock skew, so countdowns match for every player.
• Room chat, question themes, and music and sound effects built with the Web Audio API.

• TypeScript
• React
• Socket.IO
• Express
• Web Audio

Slockle (opens in new tab)

mq-gabs/slockle

A daily browser puzzle: crack four hidden phone-style unlock patterns using colour feedback and hints.

• Each day's answers come from a fixed seed plus the date, so every player gets the same locks.
• The game rules live in one shared package. The server replays submitted guesses to check them.
• English and Brazilian Portuguese, with stats, streaks and an archive of past days.

• TypeScript
• React
• Vite
• Express
• Vitest

Rush Dig (opens in new tab)

mq-gabs/mining

A mobile-first roguelike mining game, written in TypeScript and Canvas with no framework.

• Game logic has no DOM: each step takes a state and returns a new state plus events.
• All sound and music is generated with the Web Audio API. The music changes with depth and energy.
• A balance simulator where bots play whole careers to tune the economy.

• TypeScript
• Canvas
• Web Audio
• Vite
• Vitest

GoPocket (opens in new tab)

mq-gabs/gopocket

A personal finance API for tracking income and expenses by category.

• Each module is split into endpoint, validation, service, repository, DTO and mapper layers.
• One response format for every endpoint, UUID keys, soft deletes and automatic migrations.

• Go
• Gin
• GORM
• SQLite

vld (opens in new tab)

mq-gabs/vld

A small generic Go library for validating and transforming values with plain functions.

• A validator is just func(T) error, so built-in and custom rules compose the same way.
• Validators for strings, numbers, slices, maps and time. Grouped validators return every failure at once.
• Errors work with errors.Is and errors.As from the standard library.

• Go
• Generics

tchat (opens in new tab)

mq-gabs/tchat

A chat app for the terminal, with a client and a server.

• The client is its own REPL: register a server, check who you are and start a chat with another user.

• Go
• CLI

Lite Queue Server (opens in new tab)

mq-gabs/lite-queue-server

A lightweight queue server written from scratch in Go.

• Go

Simple Cache Server (opens in new tab)

mq-gabs/simple-cache-server

An in-memory cache server built from scratch to learn how cache servers work.

• SET, GET and ERASE over TCP with a custom byte protocol.
• Comes with a Go client library and a browser view of the stored keys.

• Go
• TCP