Can I install Nexus OSS in kubernetes(EKS) with external database using helm charts?

Hello,

I am part of a non profit organisation and wondering if we can install the Nexus open source(community) version in EKS with external database using helm charts? Do I need paid license to use external database? Also does the official helm chart supports installation with H2 database? We are not looking for high availability but I am concerned about this “Deploying Nexus Repository in containers with an embedded database has been known to corrupt the database under some circumstances. We strongly recommend that you use an external PostgreSQL database for Kubernetes deployments.” in this link GitHub - sonatype/nxrm3-helm-repository: Helm3 charts for Nexus Repository Manager. So what is the best method to use the OSS version without worrying data corruption?

Any advice regarding the above installation method would be really appreciated. Thank you
Manoj