Ohhhh that’s just my mine, I was just digging it out to gather resources I have no plans for the hole except for mining it some more. The bedrock the other end to the beacon is as far as the beacon reaches so no instant mining past that point. Though the effect goes that far in all directions so plenty of mining left before we need to move the beacon.
The little walled off glass area was a test for a slime chunk but the farm’s been built at the hole you tp’ed to and helped dig (which reminds me, I need to hook up a nether portal to that still.)
If you need any picks for mining, I repaired all the ones from the slime farm dig which your welcome to for your help with the dig. I think they’re in one of the single chests in my house, just have a look around and take what you want Same goes for anything else too, diamonds, quartz etc. that’s in my house