Some context:

Cue is a project originally started by Marcel van Lohuizen who previously was part of BCL (Borg Config Lang) at Google. The main use is to generate config files.

See the Kubernetes examples at: https://cuelang.org/docs/tutorials/

Here are two posts discussing the motivations for Cue over BCL/Jsonnet:

- https://github.com/cuelang/cue/issues/33#issuecomment-483615...

- https://github.com/cuelang/cue/discussions/669

A very interesting development is that Grafana appears to be adopting Cue as a first-class configuration option. See: "Bring new CUE-based config schema system to release-readiness" https://github.com/grafana/grafana/issues/33139

This could mean that a future where Grafana dashboards can be two-way synced with a git repo will eventually exist.

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Other tools with some industry adoption in the "Infrastructure as Code" space include

- Dhall

- Jsonnet (from BCL)

- kustomize

- Helm

- kubecfg

- Tanka

- SkyCfg

- jkcfg

- Krane

- HCL (Terraform)

And two tools that fall into a separate class of enabling "Infrastructure as Software"

- Pulumi (TypeScript/Go/Python/.NET)

- CDK