Not anymore, but when I was starting out in web development professionally I did two non-profit org websites back in the mid-2000s. Both were for organizations that I was involved with volunteering, and I ran their digital operations for one of them. I can say both of those projects, especially one of them, were really instrumental in my career. It was good timing too, 2005, 2006, doing WordPress development was right around when WordPress was transitioning from just blog software into the broader CMS ecosystem, so I was really an expert in WordPress development from about 2007-2016 or so, and I made a lot of money off of that experience. And WordPress development was super lucrative from like 2011-2016.
Doing large scale organizational websites was good for me, too, because I had been doing just small scale websites for individuals... Rarely charging more than $1000, usually in like the $500 and $600 range, and once I realized the money and effort in a large, coordinated organization... I never did those personal sites again, which were a waste of time.