Just an update (closure) to this topic.
I set my own stack and modus operandi for web dev w/ Elixir:
- I use plug_cowboy on the backend to manage the web server operations, routes, REST etc.
- Also on the back-end, the connection to the ArangoDB (a non-SQL db engine) instance is realized through Arangoex - wrapper/adapter.
- Front-end is developed using Vue.js (I transplanted the SPAs from old Node framework we used)
- Created my own/custom functions that somehow act as controllers - this took a lot of effort, time.
Notice that everything is at minimums, extra-light.
It took a lot of time and frustration to set all of these, but we are very satisfied now, it runs blazing fast, it’s light, easy to manage, didn’t need that bloatware of Phoenix. I know, this is not a solution for everybody, has limitations, it just fits our purpose.
If one need an out-of-the-box, full framework, he should probably use Phoenix. Nevermind the learning curve… 
Cheers,
Q.
