To piggyback on this comment - if you normally use store-bought tortillas, try making your own instead. They’re easy and cheap to make, and taste way better IMO. (Plus they won’t have all the preservatives and other additives).
All you need is flour, a fat (traditionally lard, but I’ve also used butter, ghee, olive oil, or bacon grease with good success), some salt, water, and a skillet or griddle. Some people also use baking powder, but I think it’s fine without (I prefer my tortillas to be chewy rather than fluffy).
I don’t have an alternative program to suggest, but there are some workarounds for using redshift.
First, in the config file, you can set the location provider to manual, then specify a lat/lon and it will use that location in its time calculations. I do this on my laptop, and it works well except for when I cross multiple timezones - things are obviously off a bit.
Second, with the caveat that I haven’t tried this, it looks like you can also manually set dawn/dusk times in the config, which sounds like what you’re after.
Any tips on making quesidillas? (lemmus.org)
Learn how to count with Bill Gates (lemmy.dbzer0.com)
Looking for a simple, time-based night color control
I used to be on KDE. It had night color control integrated. Then I switched to XFCE, and it did not. So I installed Redshift....