Well, a 200k line codebase, maintaining it for current users. Yeah might have been better to start from scratch.

OTOH what one gets by going this way is a community of users, and therefore it will still beat Hurd 1.0 to completion. Starting an ERP from scratch without funding as a multi-vendor effort would lead to something that would never be released.

But you should see the legacy code. The code we forked from was a textbook of how not to write (secure, maintainable, bug-free, etc) software.