If you don't mind me asking, how were you able to do this? I would like to do this kind of work, but am unsure of how to get into it. I'm perfectly comfortable with Linux, and can hack together tools when needed but haven't had any luck.
During Summer, it was so dead, I somehow found my way to contributing to Bugzilla. Those contributions, plus hanging out in IRC, caused me to be noticed by someone who was looking to hire a Bugzilla person. That eventually led to sysadmin, and later more.
What hasn't changed is the value of networking. My boss's girlfriend noticed me because I was a keener. Rare to make that kinda connection, though.
I'm literally living off the stuff I've learnt by scavenging hardware off the local computer store's trash can and building PCs to run GNU/Linux on them.