SlackBuildsOrg/system/slackyd

slackyd (slacky downloader)

slackyd is a tool that let you download packages from a repository
(checking integrity by their md5) and perform other tasks like showing
package informations (description, size, dependencies and so on),
check for updates, search for official or unofficial installed
packages. It can build packages from source or just download the
files needed for building. It can resolve needed dependencies using
required and reccomended fields in PACKAGES.TXT