Hey there,
both the chest opening and chest closing recipe accept quality modules, leading to free legendary iron for the player, presumably not intended.
Secondly, I'm gonna paste a grievance here I've been given about Renai: (tl;dr: Unfiltered event handler super expensive on end game space platforms)
"The problem with Renai (and a couple other mods) is mostly these two event handlers existing at all, with no filter
https://github.com/Kiplacon/RenaiTransportation/blob/master/control.lua#L64
https://github.com/Kiplacon/RenaiTransportation/blob/master/control.lua#L177
Just small promethium asteroids alone is 160k kills/min. That's 44 invocations of on on_entity_damaged + on_entity_died per tick. Each invocation has to go through the event data table construction (LuaHelper::setupEvent), potential LuaEntity construction, and lua garbage collection
For a lot of mods, they listen on on_entity_died with no filter as well (still bad but whatever, that's something for another day), but Renai specifically also has a lot of objects. Lua garbage collection is per-mod, within the context of each mod's set of objects, but Renai also happens to have one of the highest object counts, while its event handler is being called ~100 times per tick, with some those invocation running the very expensive luaC_forcestep (lua GC)"
Thanks a lot!