As someone who enjoys linguistic and programming puzzles a lot, this game is fantastic. The level design is very well-executed, with new mechanics gradually introduced in one single connected map. The interpretive spellcasting allowed some very interesting puzzles and is quite fun to learn. The artstyle is adorable, too!
Some minor issues: Like others, I got stuck after the fourth spell. In my case, I wrongly assumed that the fire rune meant "spawn", the spawn rune meant "fire", and the remove rune should be "water" or something, and it took me a while to figure out I was wrong. I think adding a "spawn-rock" spell as hint could clear things up a little...? Also, for a game jam themed "loop", I think the loop rune was introduced a bit late; I hope there could be some more puzzles that use loops, it's a very fun mechanic!
But that's basically all the issues I've got. Overall it's still a wonderful game, one of my favorite in the game jam, job well done!