Maximum length of application environmental variables

Hi @vipulgupta2048 thank you for updating the docs on env variables.

I posted this elswhere (Openbalena CLI optimization - #11 by barryjump) but I noticed openbalena in particular does not permit creating envs with this kind of format while Balena Cloud does:

DD_TAGS: name:joe env:test another:true

My use case is for Datadog which expects their tagging mechanism to be set with multiple tags defined in a single value field of the DD_TAGS separated by a space.

Any thoughts on if that could be fixed or at least documented as invalid for the time being?