What problems did you face when building internal tools, and how did you solve them?

Over years of building backoffices for different web projects, I ended up standardizing my own internal stack for multilingual data, templates, APIs, and previews — now published as Ekit Studio.

I’m curious about others’ stories:
– What recurring problems did you encounter when building internal tools?
– What trade-offs did you make between flexibility and complexity?
– When did you decide something was “good enough” to stop rewriting it?

Looking forward to hearing how you handled similar challenges!