VerdadesVivas Sys.

VerdadesVivasSys was built for a real operation: the Verdades Vivas book distribution network needed a practical tool to track clients, books and sales without depending on internet, cloud accounts or any external infrastructure. The result is a standalone desktop application that runs from a double-click on any Windows machine.

The app covers three main screens, each with full CRUD and fast in-screen filtering: books (title, author, price, stock), clients (registration and history) and sales (linking clients to book purchases). Every record is persisted in a local SQLite database that the app creates automatically on first run. No setup, no configuration, no DBA needed. The choice of Java Swing over any browser-based approach was deliberate: the machines this runs on are old and underpowered, and the system needed to start fast and stay responsive on that hardware without fighting a browser engine for resources.

Version 1.0.3 added an Extra tab with practical tools for day-to-day use: a database backup export (full SQLite dump), sales report export to Excel (XML format), and a self-update button. The self-update feature hits the GitHub Releases API, downloads the latest .jar, replaces the running binary and restarts the application, so users always get the newest version without a manual download.

Distribution is intentionally simple: a single .rar containing the executable .jar and a JDK installer for machines that do not have Java. No server, no installer wizard, no account creation. Extract, optionally install Java, double-click the .jar. The whole system runs airgapped if needed.