RIME is the acronym of Rime Input Method Engine.

PolicyKit is an application-level toolkit for defining and handling the policy that allows unprivileged processes to speak to privileged processes.

PCL (Point Cloud Library) ROS interface stack. PCL-ROS is the preferred bridge for 3D applications involving n-D Point Clouds and 3D geometry processing in ROS.

DPDK is a set of libraries for fast packet processing. Applications run in user-space and communicate directly with dedicated network interfaces.

skalibs is a package centralizing the free software / open source C development files used for building all software at skarnet.org: it contains essentially general-purpose libraries. You will need to install skalibs if you plan to build skarnet.org software. The point is that you won't have to download and compile big libraries, and care about portability issues, every time you need to build a package: do it only once.

DPDK is a set of libraries for fast packet processing. Applications run in user-space and communicate directly with dedicated network interfaces.