I would like to use the
~amd64 test branch for
The official Gentoo documentation says that you should add the desired packages (and versions, if needed) at
Thus, you should get a list of the packages you want to install, and add them to this file. There is no way to get all packages from a category, you must explicitly list each one.
You can use eix to get list all packages in a single category.
And just to make sure it's adding the right stuff, you can use this one instead prior to using the one above, as a test: