I love it! The artstyle is totally to my taste. The game is coherent in its entirety, in my opinion, both in terms of theme, through the execution, to the music, which is an adequate background for the work we do. I like various small details that perfect the gameplay, such as an owl appearing outside the window, changes in the time of day, or funny beard movements. Such little things really do the job :D
Was the gameplay planned this way from the beginning or was it cut down? Because while at the beginning it is understandable that the character works quite laboriously "stone by stone", I imagine that later, a way could be found to speed up the work (which I also think was a good development, adequate to the game jam theme).
Overall congratulations, great result in a very short time! :)