[_qbjt]

Send your resume / cover letter to as many companies as possible. Probability can be on your side even when the job market isn't.

Know your worth, but also be open to using your pedigree as a stepping stone to positions outside of your expertise. With 10 years of programming experience you can most likely learn enough Ruby in a short period of time to position yourself as a more compelling candidate than a Ruby dev fresh out of code school.

Consider startups. Smaller engineering teams often rely on interdisciplinary roles due to limited resources. Your role as a "jack of all trades, master of nothing" might actually be an asset to early stage companies.

Most importantly, find a healthy way of dealing with stress. Your family is depending you. This is an inherently stressful role to take but don't let stress derail you. Rather, let it motivate you to open this new chapter of you life. You can do it!

I wish you the best of luck with this situation and future endeavors.