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Berg is a Minimum Heap for Integers in Elixir. The underlying library is a Two Pass Pairing Heap in Erlang.
The interface is akin to a Priority Queue. You might be familiar with the Heap from algorithms such as Heap-Sort, Dijkstra's, or Prim's.
This is a program w/ which to learn sequential Erlang + how to build an Elixir library around it.
It's a fairly complex Erlang program (involving modules, functions, lists, and tuples) but its domain isn't complicated.
The project has OTP Application structure, documentation, Dialyzer declarations, and a test suite (mix test).
A property suite is written in Elixir (mix property).