Desktop Data Entry Application Needed

I need a straightforward desktop application that lets my team capture and manage three kinds of information in one place—text, numeric values, and images. The program must run natively on Windows, install easily, and work without an internet connection once set up.

Core workflow
• Operators open a clean, intuitive form.
• They type text notes, enter numbers (with basic validation), and attach one or more image files per record.
• Records can be searched, updated, and deleted later.

Essential features
• Local database or file-based storage that scales to thousands of entries.
• Fast search and filter functions by any field.
• Export to CSV or Excel for reporting.
• Simple backup/restore mechanism (one-click or scheduled).

Optional but welcome
Barcode or QR scanning for quicker image linking, and user-level permissions—feel free to suggest the most efficient stack (e.g., .NET, JavaFX, Electron with SQLite).

Deliverables
1. Compiled desktop installer.
2. Full, well-commented source code.
3. Brief user guide (PDF or Markdown).

Time frame
I need a working MVP as soon as possible, so proposals that include a realistic, rapid schedule will stand out. Let me know your preferred technology, any similar work you have done, and how quickly you can start.