There are already a few open-source alternatives that run datalog variant query languages. I'd point the curious towards TerminusDB [1] and TypeDB [2]. Terminus

There are already a few open-source alternatives that run datalog variant query languages. I'd point the curious towards TerminusDB [1] and TypeDB [2]. TerminusDB is implemented in prolog (and rust) so an alternative with datalog in the heart. [1] https://github.com/terminusdb/terminusdb https://github.com/terminusdb/terminusdb [2] https://github.com/vaticle/typedb https://github.com/vaticle/typedb