Good luck with your application -- I, for one, think there's a need for it. I've wished for years that someone would put something like a secure, web-based Gnucash out into the world.
Can still make a case for licensing, though, depending on the features.
We built this for our internal accounting, it's a ledger service that enforced immutable double entry rules and can run as a container with a Postgres DB configured. https://github.com/realimage/qledger
Personally, I'm likely to stick with Gnucash until or unless it becomes completely unsupported, but Intuit needs some real competition and it would be great to have more choice available.
gledger looks like a neat project, will check it out!
We think of it more as a database++ with financial primitives baked in, so we want to keep it very simple and dumb. It’s not a complete solution - it’s a book to write in, and you need another service that decides what and how to write and writes it (we call it the bank or teller service, and it’s all business logic for our business). Each product has its own bank to teller service, but they all use the same ledger underneath.