When comparing Docker vs XBPS, the Slant community recommends XBPS for most people. In the question“What are the best Linux package managers?” XBPS is ranked 7th while Docker is ranked 8th.
Ranked in these QuestionsQuestion Ranking
Pro Allows for portable application deployment
Docker creates a single object, containing an application with its dependencies, that can be moved between any docker-enabled machines, guaranteeing the same environment for application execution.
Pro Git-like capabilities
Docker tracks changes in systems. It allows for commits and rollbacks and for quick deployment due to having to deploy only the updated code.
Pro Allows re-using components
Docker essentially allows creating boilerplate systems (a LAMP stack, for example) that can be used as a starting point on multiple projects. And you can find multiple such containers already created by people in their public registry.
Pro Automatic build
Allows automatically assembling a container from its source code.
Pro Provides easy sharing and installation of containers through a public registry
Docker allows easily pushing and pulling containers to and from their public index.docker.io registry. Additionally, dotCloud maintains a list of official repositories of the more popular containers.
Pro Works in virtualized environments
You can set up Docker within an already virtualized environment such as a virtual machine. This allows you to run Docker on Mac and Windows, among other use-cases.
Pro Low overhead
Pro Supports a wide range of isolation tools
Docker can be used with OpenVZ, systemd-nspawn, libvirt-lxc, libvirt-sandbox, qemu/kvm, BSD Jails, Solaris Zones, and chroot.
Pro Tool ecosystem
Pro Extremely fast
Pro Can Detect Incompatibilities
XBPS can detect incompatible shared libraries or dependencies and gives you options before installing.
Pro Can Install Binaries or Build From Source
When installing software you can choose to install binaries or build it from source (natively or cross-compiled).
Pro Written from scratch
Pro Lots of features
XBPS can not only be used for installing/removing packages, but it can query for package info (such as version, dependencies, size etc), reconfigure packages, report and fix issues by modifying the package database, search for alternatives, manage local repositories and various other useful tools.
Con Large image size
Con Security concerns
Con Kernel OS fragmentation
Con Not just one command to run
It's not a very big drawback, just not as convenient as one command with multiple options to remove and search for apps.