zx list realms
Get a list of realms currently configured on the local system.
When ZX is initially installed only the default realm, "otpr", is present. This is plenty to run most popular open source software (and especially to develop new projects, as most of otpr is libraries), but that doesn't help if you are trying to run programs from another realm. This command lets you know what realms are currently installed on the local system without having to dig through settings files.
In the example below the local system has four realms configured:
ceverett@takoyaki:~$ zx list realms ao ao_testing otpr tsuriai ceverett@takoyaki:~$