Environment Variables

Every environment variable Nimbus reads.

Variable	Description
`NIMBUS_ACCESS_KEY`	Access key used to authenticate with the target provider.
`NIMBUS_SECRET_KEY`	Secret key paired with `NIMBUS_ACCESS_KEY`.
`NIMBUS_ENV`	Selects `nimbus.<env>.config.json` to merge over the base config.
`NIMBUS_LOG_LEVEL`	One of `error`, `warn`, `info`, `debug`. Default `info`.
`NIMBUS_CONFIG_PATH`	Overrides the default `./nimbus.config.json` lookup path.
`SLACK_WEBHOOK_URL`	Read by the example Slack plugin in Plugins, not by Nimbus core.

Provider credential chain variables (AWS_PROFILE, GOOGLE_APPLICATION_CREDENTIALS, etc.) are read directly by the underlying SDKs — see Authentication.