Oof. That's a pity. Otherwise interesting innovative concept.
Btw, in the README:
> This is not an open source or free software license, however, it converts to the AGPL v3.0 license with a linking exception after a few years. Note that the AGPL v3.0 does not typically include a linking exception. We have added a custom linking exception to the AGPL license for SpacetimeDB. Our motivation for choosing a free software license is to ensure that contributions made to SpacetimeDB are propogated back to the community. We are expressly not interested in forcing users of SpacetimeDB to open source their own code if they link with SpacetimeDB, so we needed to include a linking exception.
Is that open source then? I never heard of a linking exception before.