CDDA_Nonperishable_Overhaul VS MST_Extra_Mod

You could check where you downloaded "the non perishable mod" from, and see if there's a newer version. It's not in-repo, I googled it and checked Chaosvolt's Nonperishable Overhaul and that mod shouldn't be giving you this error because it doesn't touch seeds or raw mushrooms. How am I supposed to know if there's a newer version if I don't know when you downloaded it or from where? You know those things, you go check.

There is also a Non-Perishable Overhaul mod that makes dehydrated meat permanent, like flour, without needing further processing. Not sure how updated it is.

Nonperishable Overhaul. Simple mod that tweaks a lot of food that used to never expire back to lasting forever. Reasoning is given in the readme, but basic gist is that letting perishable components translate into perishable-but-longer-lasting products has some major bugs that still persist in both DDA and BN.

Nonperishable Overhaul. This makes a lot of food items that used to last forever go back to behaving that way, because it fixes a lot of fucky behavior that BN inherited from DDA.

Nonperisble Overhaul and Stamina Regen Buff mod are minor QoL mods that counter some gameplay changes that can undermine playability for some people.

More Survival Tools has a successor in the form of MST Extra.

Slightly related, there is an updated version of more survival tools here: https://github.com/chaosvolt/MST_Extra_Mod

Prison start is still very much a meme to be honest, more shenanigans we inherited from DDA. You may also notice that it can be hard to get anywhere with enough light needed to craft anything basic, and all the basic firestarting tools require light to make (unless you're using MST Extra mod, which adds dark-craftable fire ploughs).

For preserving organ meats, More Survival Tools Extra (same dev as Arcana & Magic Items) adds Jerked Offal.

I don't know how you could make the early game longer without making it more tedious. Making it easier to stay early game without being forced to raid a city is doable, part of what mods like MST Extra seek to do, and every so often I port ideas from it over to BN. But forcing the player to draw out early game isn't really feasible without the kinda stunts DDA pulls.

MST Extra. This is the successor to my old More Survival Tools mod that's long since been obsoleted. Adds more items and recipes, few other rebalances/tweaks, to make wilderness survival gameplay more interesting.

No idea. Keep in mind, last I checked that's not even in vanilla at all, but in MST Extra: https://github.com/chaosvolt/MST_Extra_Mod/blob/master/MST_Extra/recipes/recipe_medsandchemicals.json#L21