hey, thank you for your comments!
not sure what exactly you mean by physics based - but it is using voxels (and you can even see different densities of different materials resulting in different destruction). I know the feel of drilling and mining is not where I'd like it to be, which is likely where you are coming from.
And your suggestion is in line with what I have in mind but didn't make in time for the jam, so I hope you give it another try in the future!
Thanks again!