I love the idea of scaling up over time and seeing things around you get smaller! (In part because we had the same idea).
As other people have said, turning feels way too slow and laborious, deciding to go somewhere and then getting there takes way too much time. I did not get very far but frow hat I have seen, getting 1000 food may be way too much and the game will become very repetitive quickly.
It is unfortunate that you couldn't get the building mechanic to work, it seemed really interesting! Maybe something to look forward to in an update after the jam has ended, or as a submission to the post-jam jam?