This module cupx.github.io/pkg contains a Cup of eXtensible libraries.
go get -u cupx.github.io/pkg
Summary of the packages provided by this module:
The path cupx.github.io/pkg is shorter than github.com/cupx/cupx-pkg.
I currently cannot ensure that the cupx.net domain name can be renewed in time.
If I confirm that the cupx.net domain name can be renewed all the time in the future, the module
path of cupx may be switched to pkg.cupx.net from a certain version.