That's a lot to put on a sticker -- people aren't going to read that. Maybe something a bit snappier, e.g. "Freelance coder: available for gigs" or something.
I would question, however, whether putting a sticker of any kind is gonna help you score gigs. I mean, if you were looking for a coder, would you really approach some random guy/gal in a coffee shop based solely on a sticker on their laptop and knowing nothing else about them?
Maybe having a sticker with a link to your github, as suggested by others, would be more useful (if your user id is memorable).
Depends what you are going for, unless you are looking for people who are already reasonably tech savvy your potential customers might not know that github is a thing.
I full sentence briefly explaining what you do, and more importantly giving people permission to interrupt you would stand out more than just some random sticker.
I would question, however, whether putting a sticker of any kind is gonna help you score gigs. I mean, if you were looking for a coder, would you really approach some random guy/gal in a coffee shop based solely on a sticker on their laptop and knowing nothing else about them?
Maybe having a sticker with a link to your github, as suggested by others, would be more useful (if your user id is memorable).