Using Context.Tag for PostmarkServerToken Instead of Config with Redacted Functionality

If you don't want to use Config because of the proliferation of ConfigError, would you just do something like this instead?
// const PostmarkServerToken = Config.redacted("POSTMARK_SERVER_TOKEN")
class PostmarkServerToken extends Context.Tag("PostmarkServerToken")<
  PostmarkServerToken,
  string
>() {}


Can I still use the redacted functionality somehow?
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