Are there analogues of boo. software for your server?

Question

linux

Good, gentlemen!
I ask you not to kick at all, but I don’t even know how to make a query in Google Yandex)
There was a task to make an accounting web service.
Similar ones already exist "My business", "Class 365", but you need something for your own server.
The requirements are essentially minimal for the IP USN.
Integrations with banks, services and others are not needed.
They just filled it out, counted it, displayed it on the screen, printed it out.

Answer 1

yeah, somewhere in the Ural mountains there lives a gnome who tracks changes in accounting for free

Answer 2

1s share, a lot of people now sell dangerous