Get jbang (you can get it from sdkman for instance). Then you can run the Spring Boot CLI:

$ jbang spring@scratches version
Spring CLI v2.4.5

or a vanilla config server:

$ jbang configserver@scratches
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.4.5)
...