Thank you so much for your lovely comment!
I had a ton of fun using PICO-8 for this. Having to not worry so much about the style of art and music in particular is really beneficial to avoid decision paralysis.
I should warn you though that the heavy restrictions on memory were quite a pain in the last stages of the project, especially combined with the time pressure of the jam.
There is an online/education version of PICO-8 where you can try it out before buing the software, which is definitely the best place to start to play around with it. I also highly recommend the „Lazy Dev´s Academy“ youtube tutorials on youtube for a heap of good advice on coding with this system!