Not affiliated in any way with Actual Budget, but I can’t recommend it enough. It’s the FOSS version of YNAB pretty much so if you’re a fan of envelope budgeting it’s a great tool. I’d even say it has quite a few other strengths compared to YNAB, and you can always be sure that your financial data stays within your reach.
If one doesn’t want to self-host it one can always go through a service like PikaPods who do in fact have a revenue sharing deal with Actual Budget. And either way, Actual Budget isn’t really an accounting tool for businesses, or did I misunderstand you?
It could be through. I could see it being used for a mom and pop store if they made a business version