Use lua for config.

[offbeat-stuff]

Crazy idea but you could provide a user with the ability to directly influence game mechanic behaviour.

Like example lua config.

function init_helmet(local_difficulty)
  local diff = (clamp(local_difficulty,2.0,5.0) * 0.9 / 3.0) + 0.1
  local chance = random_float() * diff
  if chance < 0.2
    return nil
  elseif chance < 0.5
    return leather_helmet
  elseif chance < 0.7
    return iron_helmet
  elseif chance < 0.9
    return diamond_helmet
  else
    return netherite_helmet
end

[offbeat-stuff]

hmn its apparently elseif in lua