How to add custom claims in self-hosted instance?

[sebto]

I am running a self-hosted instance using Docker Compose. In the admin dashboard, I selected the Custom JWT link from the left sidebar. Under User Access Token, I clicked the Add Custom Claims button and updated the getCustomJwtClaims function in the editor. However, the code does not work, and I see the following warning message in the logs:

Early terminate 'deployJwtCustomizerScript' since we do not provide dedicated computing resource for OSS version.

After reviewing the code, it seems that custom claims are only supported in the cloud version.

Is there any way to use this feature in the self-hosted version?