> I have used Erlang very successfully in a semi-embedded context Elixir is really quite good in the semi-embedded space with several successful companies havi

> I have used Erlang very successfully in a semi-embedded context Elixir is really quite good in the semi-embedded space with several successful companies having their IOT bread and butter in Elixir Nerves platform. The deployment story is getting really mature in Elixir. The article has some really salient points: Testing and Documentation and really amazing in Elixir. Concurrent tests are amazing. So for example normally a "database" would be a global resource and running concurrent tests against the database is really tricky. It's basically turnkey in Elixir (need to set up two settings). With a bit of work, it's not terribly hard to write concurrent tests that exit the VM and come back into the vm and use a test-shard of a global resource. So, for example, you write a test that issues an HTTP request to itself, and the request is instrumented with parameters to connect it back to the test process and use the correct "temporary shard" of the database. (In the case of the database it's a transaction, I use the phrase "temporary shard" because the same mechanism can extended to other concepts too, like module mocks, ets tables, process registries, etc, which all use the same mechanism, you only have to set it up once).