Ask Slashdot: Open source employee vacation day tracking software?

sprior writes: I'm looking for preferably open source software that a business would use to track vacation/sick days for employees and so far have come up empty. I found WaypointHR which looks defunct and I'm looking at OrangeHRM which looks half defunct, half bait and switch, and half strange in general with a bunch of website bugs thrown in. Along the way I've seen a couple of other OS projects which look defunct as well. I realize that a solution might be more than just vacation tracking because once you configure the employee info for a company you tend to want to use that for more than one thing. Paid solutions are a possibility.