Generating System Definitions

[cdelia]

Hi,

There is a standard way to generate an exportable installer.scm from a 
specific generation?

I installed guix a couple a weeks ago and I'm looking forward to replace 
my distro with guixSD.

To do so, I'm slowly replacing the software that I use with those found 
on guix.
The ones that aren't there will have to wait for someone (maybe myself) 
to add them.

When I'm only using the base distro to boot, I'll switch, but for that I 
guess it would be cool to simple "export" the state of my machine to the 
new installation, with the proper 'merging' taking place. With merging I 
mean that the exported configuration will be a subset of the final full 
guixSD distro.

It should not be a heavy task to do it by hand, but just in case; maybe 
somebody has it figure out.

Thanks!