Creating resources in only one region when deploying to multiple regions with the serverless framework

serverless.yml

service: hook-relay

provider:
  name: aws

custom:
  resources:
    us-east-1: ${file(./resources/timestream.yml)} # The resources that should be created in just one region
    
resources:
  - ${file(./resources/main.yml)} # All the resources that should be created in each region, like queues, etc.
  - ${self:custom.resources.${self:provider.region}, ''}

timestream.yml

Resources:
  tsdb:
    Type: AWS::Timestream::Database
    Properties:
      DatabaseName: "hook-relay-${self:custom.stage}"

  tsdeliveries:
    Type: AWS::Timestream::Table
    Properties:
      DatabaseName: !Ref tsdb
      TableName: deliveries