I did some freelancing. A two-week job paid my November bills. It was a good emergency revenue, but it is a palliative solution. It is hard to find such jobs, it is unpredictable and also distracting.
That is what I am doing currently to support my start-up. One steady client that pays well and is willing to work with a somewhat flexible commitment from me at about 10 to 20 hour per week. And with careful spending that will pay bills for my family.
I still prefer the angel investment.