You should check out Scheme with SRFI-119 or similar. It is a really elegant and noise-free way of writing S-expressions, unsure if it works with Racket or not

You should check out Scheme with SRFI-119 or similar. It is a really elegant and noise-free way of writing S-expressions, unsure if it works with Racket or not though. I also did a similar challenge this year, though I had to drop some of the more exotic languages that you kept in. Nice work.