I have been using Obsidian with a plug-in called Inline Scripts Using that I can make a script (JavaScript) that can return what I want.
Sorry for the delay! Okay, so I'm pretty sure I've fixed this now. It is at least showing a consistent font (https://fonts.google.com/specimen/Cousine) between my browsers (Chrome and Firefox) and browserling. If you're not a fan of this Cousine font (Inconsolata had weirdly high and small equals signs) then your best bet at this stage is to do something like this: https://www.reddit.com/r/perchance/comments/c46sl3/perchance_doesnt_look_good_in_firefox/erxgvpl
But if you're not getting the Cousine font on all your devices, please let me know! :)
No problem! The private/public-ness shouldn't affect it. There have previously been intermittent problems with glitch.com, where it's hosted, so I'm guessing that was the problem.