Source : Free On-Line Dictionary of Computing

hand-roll
     
         (From mainstream slang "hand-rolled cigarette" in
        opposition to "ready-made") To perform a normally automated
        software installation or configuration process {by hand};
        implies that the normal process failed due to bugs or was
        defeated by something exceptional in the local environment.
        "The worst thing about being a gateway between four different
        nets is having to hand-roll a new sendmail configuration every
        time any of them upgrades."
     
        [{Jargon File}]
     
        (1995-02-28)