Go to the remastersys web site (Ibelieve its just 'www.remastersys.com'
theirs two versions a debian and for ubuntu, it walks you thru how to install (has a dedicated repo now
). and update source list.
Have used the debian version on "LMDE, solydkx (a LMDE 'OFFSHOOT with either Xfce or KDE), and sparkyLinux (also based debian testing) 3.x version works quite well.
Also used ubuntu version on Xubuntu, LMint, Peppermint, wattOS. all seemed to work fine.