> or do we LLM-build it from the ground-up?

But in this case you don't spend tokens only on your workflows: you have to patch it constantly, perform vulnerability scans, check and adapt for law changes(eg. if you in europe: GDPR or DORA), create and maintain (again security) integrations with other systems and so on.

And, most importantly, you as a corporate need an internal team to do the work and that means it's a liability to you as a corporate ... and we all know it's better to have some else to blame.

Just imagine the CTO or CISO explaining to the CEO that the data breach they had last week and that cost them millions was due to some customization they did on top of an open source ticketing system.