Experimenting with a cue (https://cuelang.org/) renderer for Saltstack.

Includes a test SLS with some random test features, and a cuelang SLS to install the cue binary somewhere.

The cue binary must be accessible by salt for this to work, as the renderer calls it.

Salt grains are referenced by #grains.grain_name (eg, #grains.os for grains['os']).

salt-call --local testing -l debug