[hughjeremy]

Oh! I see, I apologise, I may have misinterpreted your question. Amatino would be applicable to someone who is building a project that needs double-entry bookkeeping to function. For example, they might be a fintech startup building an early invoice payment trading platform. Rather than building their own double-entry layer, they could leverage Amatino.

If double-entry accounting only exists in your project insofar as you need to account for your own business, then, as you say, Amatino would probably be an excessive solution creating unnecessary work.

Aside, on the topic of exchange rates - Amatino has built in daily exchange rates between each of 36 major currencies (You can also feed it your own, if you want more resolution / different units of account). It also automagically computes unrealised gains and losses.