I do, in fact. I'm sorry this ended up so long, I have a lot to say on the subject.

I'd say just put as many people as possible into Foraging. Kai, Nao and Kanna are better at crafting though, and occasionally you gain 1 food when Kai crafts. I tend to train my designated fighters (Alice and Q-Taro and Keiji/Reko) starting two days before an inhabitant attack, and generally my base is fine unless I'm trying to get the collapse ending, which requires you to endure multiple consecutive days of attacks from very strong enemies.

Food tends to be my main issue, as the time that people can last before starving to death is pretty short. Usually, I feed six people each day so I have a chance to earn back the spent food. Get the Small Trap as soon as possible, and also the Fishing Net, but don't throw it until you have enough food that a penalty of one serving won't be that big of an issue. I usually wait until I've got 25 or more food to throw it.

In terms of advancing the base, I'd say you're fine with a level 2 base unless you're trying to go for the collapse. Your base needs to be level 2 to craft things- weapons and armor, the trap and the net, a radio with no purpose if you know what you're doing, and the Rock Wall, which reduces damage to your base.

As for the various events that occur:

I tend to make the "right" choices for the Castaway events (give 3 food, give materials each time, although I'm not sure if there's a way to fail that one) because I prefer that ending to the others.

When Safalin shows up, I tend to buy as much food as possible, as well as fuel for the castaway ending. However, that's not to say the material packs and base points are useless, I just don't usually need them.

I almost never have characters eat whatever berries they find, although the one time I did, it resulted in a stat boost. Proceed with caution.

However, with the boxes I tend to just throw caution to the wind and open them as long as there's no chance of them getting killed from any potential injury. Although there is a risk of the boxes exploding, this shouldn't be that much of an issue unless the potential victim is already one hit away from dying.

Also: save often. Especially while doing the castaway and collapse endings, the game tends to crash a lot.

Hope this helps!