What is Slackware?
Slackware is a free distribution of Linux. It features a wide range of technology from printing to networking to services, and thanks to its advanced package management system, it’s incredibly easy to install and remove software to match your computer system's needs. Supporting this distribution is very easy, since it is backed up by a large community of developers and users.
What is Opkg?
Opkg is the package management system used on embedded Linux systems, most notably OpenWrt. It was designed to replace the Rpm Package Manager (RPM), Debain packages, Alien packages, and the Red Hat Package Manager (RPM), but it can be used with any Linux distribution. With opkg you can easily download and install software packages from the Internet to keep your router up to date without a lot of hassle.
Opkg alternatives for Slackware
If you’re looking for Opkg alternatives for Slackware, you could look into packagecloud as a method to handle all of your package management. This means that you won’t need a handful of package managers for Opkg or distributors for Slackware to get the packages you need. Packagecloud can manage all of your packages in one place so you always know they’re secure and accessible.