Finally went through all the hoops of getting PPA builds out the door for Ubuntu & friends.
Main repository (package name, arcanfe):
apt-add repository ppa:13l-bjorn/ppa-arcan
FFMpeg dependency:
apt-add-repository ppa:jon-severinsson/ffmpeg
Libretro cores:
apt-add repository ppa:hunter-kaller/ppa
There might be some additional changes needed to the control files (havn’t done this before) vis a vis dependencies and versioning,
but, it seems to be mostly working.
Arcan 
Hi, with ubuntu 12.10 x64 i have this error:
The following packages have unmet dependencies:
arcanfe:i386 : Depends: libavutil-extra-51:i386 (>= 4:0.7-1)
Depends: libavdevice53:i386 (>= 4:0.7-1) but it is not going to be installed
Depends: libx264:i386 but it is not installable
Depends: librtmp:i386 but it is not installable
Depends: ruby1.9.1:i386 but it is not going to be installed
Depends: libsqlite3-ruby1.9.1:i386
Depends: libnokogiri-ruby1.9.1:i386
E: Unable to correct problems, you have held broken packages.
weird, it seems to be choosing the 32bit package even though there’s a 64bit one available, I’ll check it out later today.
Ok, thanks. Great work!!
Apparently apt- on ubuntu 12.10 defaults to oneiric:i386 if there’s not a matching PPA repository for quantal:amd64. Added / built one that worked on a clean virtualbox install of 12.10-64bit that should be working. Afterwards, check the wiki- for setup details.
Now it works, thanks.