Thank you so much for playing and leaving feedback! Eventually I'll put out another update, but I would like for it to be something more substantial than few typos/bug fixes and I haven't had the time to revisit this project again. Maybe in the future. The Mining kit feature was added because it can get overly grindy to get some of the higher end ores/ingots and I wanted to soften the grind to make it easier. Thanks for the bug reports I'll definitely come back to the feedback here when I make the next update.
-Drifty