The Apache Clownfish symbiotic object system is an alternative to the "universal runtime" approach. It is a library rather than a platform. Instead of trying

The Apache Clownfish symbiotic object system is an alternative to the "universal runtime" approach. It is a library rather than a platform. Instead of trying to provide a superset of semantics which encompasses all languages, it provides a single runtime which supports a subset of features, which then lives inside the "host" language environment. https://github.com/apache/lucy-clownfish https://github.com/apache/lucy-clownfish