As of this day, this is probably the only and fastest way of installing it.
Based from the GDAL and PROJ build requirements, here is the full list of required packages to install:
Since this recipe was rejected because of the volatile nature of pCloud links (see homebrew-cask#57634) I try to maintain this myself because it is useful to me and might be for others.
pcloud-drive.rb
.brew cask install pcloud-drive.rb
.To uninstall run brew cask uninstall pcloud-drive.rb
.