Comment by EvanAnderson

My parents' small businesses still run an xBase-based TUI accounting application for GL, AP, AR, and payroll they first purchased in 1988. Other than a Y2K update it has run unchanged since it was originally installed. Today I have to use DOSBox to make it run but it still works great. I've scabbed-on a few quality-of-life updates (mainly by capturing and processing print jobs) but it mostly just does its thing.

As you'd expect with having a TUI the users can absolutely fly through it. It's extremely efficient for them.