Apex looks great, can you talk a little more about it? Lambda doesn't currently support Python 3 (only Python 2.7) and that has been a massive pain in the arse

Apex looks great, can you talk a little more about it? Lambda doesn't currently support Python 3 (only Python 2.7) and that has been a massive pain in the arse to deal with. I've heard it's possible to get Python 3 working on it by shipping a custom executable and serializing/deserializing state but I figure it's a fairly significant performance hit.