Ahem. All kinds of things, maintaining a bunch of open source libraries and tools (https://github.com/shazow), bootstrapping a service that emails you analytics summaries (https://briefmetrics.com/), building random apps that I happen to need (a partial list on http://shazow.net/).
I suspect your underlying question was whether I am employed full-time—I am not.
I have begun freelancing myself and find that I have a lot more time for my own projects and open-source contributions. Still, sometimes I wish I could drop the contracting all together.
I'd love to one day have something that I created or contributed to, in my own time, be popular enough to get hired to work on it.
Some of my projects are bringing in money, but not enough to cover my living expenses. Occasionally I'll take on a contract.