"At launch it used 73MB of RAM, which isn't much for 2024."
The editor I've been using on UNIX/Linux for 40 years is smaller
$ size /usr/bin/jove
text data bss dec hex filename
199097 23496 304240 526833 809f1 /usr/bin/jove
It used to run on a PDP-11: limited to 64k of code and 64k of data.