What if we build elixir in minecraft?

Some essential rules:

1. Let data be data.
2. Use CRC (Create, Reduce, Convert) pipelines. Most things in elixir and FP is essentially reducing over some state.
3. Use modules to organise related functions that operate on some state.
4. If you wish to compose use import or delegate to other functions in other modules.
5. If you want polymorphic behaviour use protocols
6. If you want to derive functional behaviour with your own overrides use behaviors

Look at the Enum module, it can work on data elements of any type, so think in terms of steps or an algorithm and really let the data be just data.

For true OO semantics look at Elixir process modules such as genservers or liveviews which are objects as per the Alan Kay definition, they accept messages as the only means of interacting with them and manage private state in their own process context.

Program maintenance is an entropy-increasing process, and even its most skilful execution only delays the subsistence of the system into unfixable obsolescence

– Fred Brooks