Rubi (Stephane Rubinstein) was a coder in the [[logon systemLogon System]] group
He was involved in [[Amstrad 100%]] team in a specifical column called "Rubidouilles" where he was describing lot of tips, like a prog to create overscan drawing, used by lot of cpc addicted. He has also created lot of protections for commercial games (like [[Skatewars]] on cpc, edited by [[Ubi Soft]])
He has contributed in the demo to the "invisibles" but important things like the [[Zeus]] logon Packer and the musical loader in the first version of [[The Demo]].