> BossDB migrations aren't particularly advanced.

No, they aren't, they were "the simplest thing that possibly worked" for my needs (I wrote that code).

One problem with boss_db is that it uses some heavy duty compiler magic that none of the "pure Erlang" kinds of folks really want to touch because it produces un-Erlangy code. This leaves it in a no-man's land: the Erlang people don't want to deal with it, and the people coming in from Ruby or whatever are just going to go straight to Elixir which looks more familiar anyway.