I think it's this: https://documentation.meraki.com/MX/Deployment_Guides/Cisco_Meraki_MX_Branch_to_Azure_Virtual_WAN_De...
Which is using scripts hosted on what appears to be an employees personal github account?
Doesn't exactly make me super confident.
I suppose it'll be quite a bit cheaper than a vMX license but with quite a bit more complexity.
If you found this post helpful, please give it Kudos. If my answer solves your problem please click Accept as Solution so others can benefit from it.