There is one approach Fowler suggested is SacrificialArchitecture. You build your monolith quickly, get to market fit and once you understand service boundaries you move to microservices.
Personally I would like to try Umbrella Projects[1]. You can design it as microservices but deploy and build as monolith. Overhead is lower, and it is easier to figure out right services when in one codebase. It can be easy implemented in other lang/frameworks as well.
Personally I would like to try Umbrella Projects[1]. You can design it as microservices but deploy and build as monolith. Overhead is lower, and it is easier to figure out right services when in one codebase. It can be easy implemented in other lang/frameworks as well.
[1] https://elixirschool.com/en/lessons/advanced/umbrella-projec...