In my infinite folly, I thought I could get away with having a fixed resolution window, and not have to put in the effort to make it scalable. How naive I was.
Luckily I've been working on a web version, stripping out all the lovely shaders I used and contorting the elegant structure into something abhorrent. Jam won't le me upload new version though, so until it ends, here's a super secret link to the web release:
https://chao.itch.io/secret-across-the-stars-web-version?secret=NdDjImyvIcVck9Zd...
It might not seem like this fixes any resolution issues you might have, but remember, you can zoom in and out in a browser.
As far as jam hacks go I wouldn't say this is too excessive.