Hackers and Painters: “I think the answer to this problem, in the case of software, is a concept known to nearly all makers: the day job. This phrase began with musicians, who perform at night. More generally, it means that you have one kind of work you do for money, and another for love.
Nearly all makers have day jobs early in their careers. Painters and writers notoriously do. If you’re lucky you can get a day job that’s closely related to your real work. Musicians often seem to work in record stores. A hacker working on some programming language or operating system might likewise be able to get a day job using it.”