I've been running my own, it's mostly automated now. I started a yacy instance as well so not only am I aggregating bigger websites, I'm including the sites I crawled myself and the other sites available on yacy through it's huge p2p search functionality. In this little way, I'm trying to make sure my search isn't totally dominated by corporate search.

Tbh, yacy is 1000x harder to keep running than searxng.