TODO: image field is not pre-evaluated (not a huge deal)
TODO: allow dynamic fields

-- in.cue --
key: "app01"
manifests: [
    {
    deployment: #map: [string]: { name: string, image: string, desc: string }
    deployment: #map: "\(key)": name: "app01"
    },
    {
        deployment: #map: app01: image: "image01"
        // TODO: allow
        // deployment: #map: "\("app03")": image: "image01"
    }
]
// unify
results: _
for _, manifest in manifests {
    results: manifest
}
-- out/eval --
(struct){
  key: (string){ "app01" }
  manifests: (#list){
    0: (struct){
      deployment: (struct){
        #map: (#struct){
          app01: (#struct){
            name: (string){ "app01" }
            image: (string){ string }
            desc: (string){ string }
          }
        }
      }
    }
    1: (struct){
      deployment: (struct){
        #map: (#struct){
          app01: (#struct){
            image: (string){ "image01" }
          }
        }
      }
    }
  }
  results: (struct){
    deployment: (struct){
      #map: (#struct){
        app01: (#struct){
          image: (string){ "image01" }
          name: (string){ "app01" }
          desc: (string){ string }
        }
      }
    }
  }
}
-- out/compile --
--- in.cue
{
  key: "app01"
  manifests: [
    {
      deployment: {
        #map: {
          [string]: {
            name: string
            image: string
            desc: string
          }
        }
      }
      deployment: {
        #map: {
          "\(〈3;key〉)": {
            name: "app01"
          }
        }
      }
    },
    {
      deployment: {
        #map: {
          app01: {
            image: "image01"
          }
        }
      }
    },
  ]
  results: _
  for _, manifest in 〈0;manifests〉 {
    results: 〈1;manifest〉
  }
}