Just use Maven. Works very well w/ Kotlin.
For one of my clients, we created lots of similar microservices, similar setup but slightly differ. What I did was creating a template using maven archetypes so spinning up a new microservice for a new piece of work or simply to try something out or an ad-hoc job is a matter of seconds, so setup time is stopped being a hindrance to start something new.
Also these days there are quite few tooling that supports project generators which can give you a bit of setup to start from.