This is why Debian is my server of choice, and my work desktop of choice.
OP, There are some flavors of Debian out there that are more rapid release, like LMDE, Siduction, Sparky, even Kali (though I wouldn’t recommend Kali as a primary desktop personally). Some based on Sid, some based on Testing.
Take a look at Apache OFBiz, Akounting, Frappe Books, and LedgerSMB.