Artemis theme is e107 bootstrap5 theme based on Soft UI Design Free by Creative Tim.
For only 2.3.1 e107 version.
Artemis theme works only with core 2.3.1 version. There are more ways how to get this version before the official release. Be aware that this is the developer version and this is not recommended to use. How to get 2.3.1 version
Soft UI Design System