Arkadiusz Staniek
C#/.NET Desktop Developer building reliable Windows tools
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New portfolio project: Data Importer & Cleaner v1.0.1
Messy spreadsheets are easy to clean.
Cleaning them safely, reproducibly and without losing track of what changed is the harder problem.
I built a Windows desktop application that turns inconsistent CSV and Excel files into...
I’ve just completed Invoice Manager — a production-ready Windows desktop application built with .NET 10, C#, WPF, MVVM, EF Core and SQLite.
The application covers the full workflow from quotation to payment, including:
• customer and service management
• quotations and invoices
•...
github.com
GitHub - Staniek-Tech-NL/invoice-manager: Local-first quotation and invoicing application for Windows built with .NET 10, WPF and Clean Architecture.
Local-first quotation and invoicing application for Windows built with .NET 10, WPF and Clean Architecture. - Staniek-Tech-NL/invoice-manager