Can use env value from shell?

[Wimpress]

You can use the environment: keyword. See this topic:

Declaratively defining environment variables

Per the conversation in the topic about using pre-built binaries inside snaps, please note that for a some time now we support declaring environment variables to be exported inside the snap environment directly in snapcraft.yaml. For example, at the top level: environment: SOME_VAR_NAME: some value and/or under each application: apps: myapp: command: ... environment: SOME_VAR_NAME: some_value