Which is why I’m having trouble picturing the market for this. How big is the overlapping region in the Venn diagram of “Linux users” and “people who need a hand-holding not-really-a-database”?
Probably big enough. Most developers would probably reach straight for a database but anyone outside the developer group (sysadmins, hobbyists, laymen using linux) could probably benefit. Maybe even low level devs that never touch databases, but they could probably learn sql just as easily as kexi. Another one would be any group of non-devs that have or could build a database but want an easy way to build a front end for it, think of the sort of things you'd build a bare bones web front end for.
Well, that's not really the target. It's to get another check unchecked that keeps people from switching from Windows to another platform. For now, yes, I agree with you.