[0] https://akaunting.com/features
1) If you want to develop an accounting system from scratch, you should spend some time looking at how existing accounting systems work. You can play with commercial systems (e.g. Xero, Sage, QuickBooks) or, even better, look at the source code for open source accounting systems. I'm a qualified accountant, have some professional experience with Django, and am a decent product manager. Even so, I would not attempt a project like this with just my domain knowledge and technical skill. It's good to learn patterns that have worked (or not worked) for others.
2) You have an ambitious goal. Great! Now what is the minimum functionality you need before the software will be useful for you, or for the first set of users? If you can't deliver that in some reasonable timeframe, you might lose momentum or interest yourself.
3) I have never been to Bosnia, but I'm guessing that the accounting needs of small businesses there are 95% the same as the needs of small businesses in the UK or the US. The things that tend to vary between countries usually relate to:
- computations (tax rates and structure)
- minor presentation details (e.g. whether VAT numbers need to be displayed)
- bank statement integration
These are easy to customise without changing the design of the system. So, I'm curious, why do you want to create an accounting system for Bosnia? Why not create one for the world. Or, more easily, use an existing system and adapt it for Bosnia?
4) Take a look at these open source accounting systems:
https://github.com/ledgersmb/LedgerSMB
https://github.com/akaunting/akaunting (pretty recent but feature rich, code seems well structured)
https://github.com/Gnucash/gnucash
5) Finally, if you want people to use and contribute to your project, consider including these in your README:
- Installation instructions
- Current status, including a list of features that already work