A mod adopted from meifray and improved a bit.
This mod causes all inserters to spawn an invisible miner where they take from.
Invisible drill has a mining speed of 20 and mines from a 3x3 square(pending feedback, could be adjusted!).
Until further notice, it is highly recommended to not use this mod with Miniloader or any other mod that adds entities that have invisible inserters inside them - the invisible drill will not disappear after mining the inserter-type entity, and will persist indefinitely. However, the drill does not collide with anything, so you can build over it with no fear, and you can mine it if necessary.
KNOWN BUG: If you mine the invisible miner before you mine the inserter, then try rotating that inserter, the game will throw up an non-recoverable error. I have no idea how to fix that, any and all advice is welcome!