What actually breaks when you build RAG fully on-prem?
I have a feeling that the most valuable RAG systems are built on data that is sensitive for companies. That way, the data never leaves their controlled infrastructure. However, processing a massive amount of data of various formats and sources into a format suitable for a vector DB without using hosted parser APIs like Azure Document Intelligence, LlamaParse, Unstructured, etc. Seems like a nightmare.
I want to find out how this looks in practice and map out where the real pain points hide in these projects.
So if you've built one of these: on-prem or air-gapped because you had to (regulated data, client contracts), or just because you wanted control/privacy/cost
Sources could be anything: PDFs and tables on disk, or data pulled from internal tools like Confluence, Jira, SharePoint.
Drop a comment about what your biggest pain points were. What breaks, what eats time, what you'd do differently, what stack you used