How detailed is tunnel mining?

[Weißbrot]

Since Out of Ore is all about mining i wonder how deep/advanced/detailed tunnel mining is?

@North Modding Company AB
~ Will there be a need for support structure inside tunnels to prevent collapses?
~ Will there be a ventilation simulation in tunnels combined with the famous canary birds?
~ Will there be a need for water drainage in tunnels and a ground water table which would require water pumping in tunnels going below it?
~ Will there be mining carts which can be pushed by the player or pulled by animals or later even by locomotives?
~ Will there be the ability to move mined material via letting it slide down a decline like ore chutes inside of mines?
~ Will there be air compressors and affiliated tools like compressed air drills?
~ Will there be the ability to blow tunnels with explosives into the ground/a mountain?