Gentoo overlay with usefull ebuilds.
You can use it having added in a file layman.cfg the reference freshgen.xml. Then you can check out it by command layman -L && layman -a freshgen
More information you can get in my blog http://some-it-notes.blogspot.com/ (only Russian language)
For LXDE (Lightweight X11 Desktop environment) use official gentoo-overlay (layman -a lxde) from Gentoo LXDE Project