LXC nodes: full-system Linux containers
LXC containers boot a complete Linux system - init, systemd, a real package manager - not the single-process model a Docker container uses. That makes them a better fit for anything that expects to behave like a whole machine (multi-service labs, systemd-managed daemons) while still starting far faster than a full VM.
Open Library → LXC. A curated set of distros pulls with one click - Ubuntu, Alpine, Debian, Fedora, CentOS, Arch - or type any other images: alias in the search box below it. Links wire the same way as Namespace nodes: a veth pair injected into the container's PID namespace.
Pre-pulling is optional here too - drag an LXC device onto the canvas and netplex. pulls it on first launch if it isn't already local. See "What netplex. can run: the runtimes" for how LXC compares to Docker, MicroVM and Namespace.