How a part of the system works, and why it works that way. Written from the product rather than from a brochure.
Guides
Hiding a menu item is not a permission. What separates access control that works from access control that looks like it works.
Nobody needs eighty reports. They need six they trust, and a way to answer the seventh question without asking for a new one.
What to bring, what to leave behind, and why opening balances matter more than history. A migration plan that fits on one page.
A translated menu is the easy ten percent. The other ninety is printed documents, error messages, sorting, numbers and the direction of the page.