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Selected repositories from my GitHub.

Koffe

FlutterDartSupabaseSQLite + SQLCipherAndroid

Barbershop and massage clinic management app that works 100% offline and syncs to the cloud when connected. Private project in active development.

  • Offline-first: data is saved locally first, with a sync manager, exponential backoff retries and merge-based conflict resolution
  • Voice scheduling with AI (Groq): speak in Portuguese and the form fills itself
  • Encrypted local database (SQLCipher), biometric authentication and device tracking
  • Scale: 41,000+ lines of code, 174 Dart files and 14 sync managers

Jonas AI

n8nOpenAIEvolution APIPostgreSQLDockerRAG

AI assistant for real estate agencies that automates WhatsApp customer service with natural conversations and a RAG knowledge base.

  • Context memory and grouping of consecutive messages before generating a reply
  • Typing simulation to make the interaction feel human
  • Property search by city, neighborhood, price range, type and bedrooms through RAG
  • Automatic lead qualification and conversation history

Business KPI Automation

Pythonpandassmtplib

Automation that turns spreadsheet data into business insight: it calculates KPIs, checks them against targets and emails a personalized report to each company.

  • Calculates revenue, average ticket and product diversity, for the day and for the year
  • Target validation with a green or red status for each indicator
  • Batch processing of many companies in a single run, sent over SMTP
  • Spreadsheet attached to each email for more detail
Personalized email with daily and yearly KPIs
Personalized email with daily and yearly KPIs
Emails sent in a single batch run
Emails sent in a single batch run

Planejai

ReactTypeScriptViteTailwindCSSLocalStorage

Responsive website built during the Santander Front-End Bootcamp (React + AI) by DIO. It organizes your goals and uses AI to simulate a plan to reach them within your timeframe.

  • New simulation from 6 inputs: income, fixed expenses, debts, goal name, cost and deadline
  • Results page with AI-generated recommendations to reach the goal on time
  • History of past simulations, with details and delete
  • Light and dark theme switcher

SellingControl

PythonKivyFirebase

Online sales control app for the day-to-day of a seller: suppliers, products sold and sales records.

  • Login and sign-up with Firebase
  • Sales registration with suppliers, products and prices
  • Follow other sellers and track their sales
  • Automatic login through a refresh token

devroast

Vibe CodingPrompt Enginnering

Tool for developers who want direct, unfiltered feedback on their code: paste it, pick the analysis mode and get an evaluation.

  • Roast mode for maximum sarcasm
  • Score from 0 to 10 and a leaderboard of the worst code submitted
  • Detailed analysis with issues, suggestions and diffs
  • Dark interface with JetBrains Mono and an emerald green accent
See all on GitHub