omnibus_gitconfig['system'] = {.
    "core"     => ["packedGitLimie = 32m", "packedGitWindowSze = 32m", "deltaCacheSize = 32m" ],
    "receive"  => ["fsckObjects = true"],
    "pack"     => ["deltaCacheSize = 32m", "packSizeLimit = 32m", "windowMemory = 32m", "threads = 2" ]
}