What is the recommended configuration for using environment specific service bindings?

[alexgoldsmith]

I am using a config like the below but am triggering an error when I attempt to deploy.

name = "gateway"
account_id = "----"
compatibility_date = "2022-07-24"
main = "server/entry.ssr.js"

[env.dev]
vars = { ENVIRONMENT = "dev" }
route = "dev.example.site"
custom_domain = true
zone_name = "dev.example.site"
services = [
{ binding = "auth", service = "auth-dev"},
{ binding = "home", service = "home-dev"}
]

[env.staging]
vars = { ENVIRONMENT = "staging" }
route = "staging.example.site"
custom_domain = true
zone_name = "staging.example.site"
services = [
{ binding = "auth", service = "auth-staging"},
{ binding = "home", service = "home-staging"}
]

[env.production]
vars = { ENVIRONMENT = "production" }
route = "example.site"
custom_domain = true
zone_name = "greenshell.site"
services = [
{ binding = "auth", service = "auth-production"},
{ binding = "home", service = "home-production"}
]