Better handle shared env variables
From !2650 (merged)
Two separate recipes need to setup ENV variables based off the same info. One recipe can use the others attributes, but there isn't a great way to indicate the dependency, and the value isn't really specific to one of the recipes. Would be nice to have a better way to share this info
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config/software/FOO
could have something to export attributes that recipes could then consume - There could be a central attribute Mash that contains omnibus specific environment variables. Should be known that multiple recipes might be using said values.