Windows Hostel Management CLI Software

I need a self-contained Hostel / PG Management application that runs on a Windows desktop or local server and stores every record locally—no cloud dependencies at all. A simple Command Line Interface is perfectly fine as long as the flow is intuitive for non-technical staff.

Core functionality I expect in this first release:
• Check-in / Check-out management
• Room and bed assignment
• Billing and payment tracking
• Electricity (EB) Bill Allocation

All users can share the same access level, so there is no role hierarchy to implement right now. Even so, I still want the codebase structured so roles could be added later without rewriting major portions.

Please explain, in your proposal, the architecture you recommend for an on-prem setup (for example, a compiled desktop client connected to a lightweight local database such as SQLite, or a small client–server package running over LAN so several PCs can work simultaneously). Make sure to include:

• Technology stack and why you chose it
• Any third-party or licensing costs I should be aware of (I prefer zero-cost runtimes if possible)
• How multiple staff members could use the same data over our local network
• Your approach to keeping the design extensible, so additional modules can be bolted on later

Deliverables
1. Production-ready installer or portable executable for Windows
2. Local database schema with clear instructions for backup/restore
3. Brief user guide (PDF or markdown) covering daily CLI commands for check-in/out, room allocation, and billing
4. Source code and build instructions so I can commission future enhancements with you or another developer

I appreciate concise, technically focused proposals that walk me through your plan, timeline, and any similar projects you have delivered.