curl -O https://raw.githubusercontent.com/dm9pZCAq/TermuxAlpineVNC/master/Alpine.sh
sh Alpine.sh -h
After instalation you can just login in Alpine and execute SetupVNC --help
If you already have Alpine, then login and execute:
curl -O https://raw.githubusercontent.com/dm9pZCAq/TermuxAlpineVNC/master/SetupVNC.sh
sh SetupVNC -h