"Function not found" when serving locally for testing

Setting up Edge Functions runtime...
Serving functions on http://127.0.0.1:54321/functions/v1/<function-name>

curl -i --location --request POST 'http://127.0.0.1:54321/functions/v1/my-function-name' \
  --header 'Authorization: Bearer [bearer removed]' \
  --header 'Content-Type: application/json' \
  --data '{"name":"Functions"}'

curl -i --location --request POST 'http://[project-key].supabase.co/functions/v1/my-function-name' \
  --header 'Authorization: Bearer [bearer removed]' \
  --header 'Content-Type: application/json' \
  --data '{"name":"Functions"}'