This guide works perfectly on a $5/mo Digital Ocean Droplet. it’s fantastic and cheap and a great way to support the network as you run a full node plus electrumx!
one note, building Feathercoin Core 0.16 on the small droplet, you usually run out of memory during the build
run the below to increase swap.
free dd if=/dev/zero of=/var/swap.img bs=1024k count=1000 mkswap /var/swap.img swapon /var/swap.img free make -f makefile.unix