A FUSE filesystem that presents your GOPATH as a directory, with file entries containing the go doc
for each package.
go get -u github.com/bketelsen/godocfs
mkdir $HOME/godoc
godocfs $HOME/godoc
cd $HOME/godoc/github.com/pkg/errors
ls
> godoc
cat godoc
> // package errors
> ...
This is a toy, you should use go doc pkgname
instead.