With a founding team of six for a hardware startup, we couldn't all be paid without going bust, so the best thing was for most of us to keep jobs and accept the reduced speed of development. I've been working one or two evenings a week for 4 years, totalling 1500+ hours, which is close enough to a full-time year now.
As the software guy, I also found I spent much of the rest of the week subconsciously thinking through issues and solutions anyway, so by the time I did get that six or so hours to code I was pretty damn productive.
As the software guy, I also found I spent much of the rest of the week subconsciously thinking through issues and solutions anyway, so by the time I did get that six or so hours to code I was pretty damn productive.