Environment Variable that is a JSON object

const server = z.object({
 
  GCS_KEY: z.preprocess(
    (str) => JSON.parse(String(str)),
    z.object({
      type: z.string().min(1),
      project_id: z.string().min(1),
      private_key_id: z.string().min(1),
      private_key: z.string().min(1),
      client_email: z.string().min(1),
      client_id: z.string().min(1),
      auth_uri: z.string().min(1),
      token_uri: z.string().min(1),
      auth_provider_x509_cert_url: z.string().min(1),
      client_x509_cert_url: z.string().min(1),
    })
  )
 
})

const processEnv = {
  GCS_KEY: process.env.GCS_KEY
}