>>> Ничего изобретать не нужно, локальные репозитории давно изобретены.
>> Изобретать нужно не сами локальные репозитории, а систему наполняющую их без риска
>> "оторваться от жизни".
> apt-src
> apt-get build-dep
>> С другой стороны для ряда задач тащить на сервер всю цепочку зависимостей
>> иногда не хочется и бывает проще именно мудохаться с сорс-базед. Да
> apt-get build-dep

Installing:
nginx                                            i386                                0.8.54-1.el5                                              epel                              390 k
Installing for dependencies:
GeoIP                                            i386                                1.4.7-0.1.20090931cvs.el5                                 epel                              710 k
fontconfig                                       i386                                2.4.1-7.el5                                               base                              174 k
freetype                                         i386                                2.2.1-28.el5_5.1                                          base                              312 k
gd                                               i386                                2.0.33-9.4.el5_4.2                                        base                              154 k
libX11                                           i386                                1.0.3-11.el5                                              base                              796 k
libXau                                           i386                                1.0.1-3.1                                                 base                               18 k
libXdmcp                                         i386                                1.0.1-2.1                                                 base                               19 k
libXpm                                           i386                                3.5.5-3                                                   base                               45 k
libxslt                                          i386                                1.1.17-2.el5_2.2                                          base                              485 k
pkgconfig                                        i386                                1:0.21-2.el5                                              base                               59 k
xorg-x11-filesystem                              noarch                              7.1-2.fc6                                                 base                              5.4 k

Скажите а зачем в центосе nginx-у  xorg-x11-filesystem  ? лол :-))