So, lessons learned so far:
Harv's island has an ABD terminal, so you don't need to bring 800,000 bells along. Anyway, it doesn't matter, because while you can donate partway to all of the shops, when you finish one it's done for the day, you have to wait for tomorrow. And this is why I have Katrina the fortune-teller first, and nothing that I want. "It's fine, I think." as Booker used to say.
You get Brewster on the first Kapp'n island, and it's very normal, boring. The next island is very unlike this, and here I got tomatoes! I assume all the veg have to be discovered on islands, which I'll be running every day. I'll probably post my garden when it's all productive.
None of the Kapp'n islands I've seen yet (one per day, so: 2) have wasps in the trees. Weird. I'll still check every one with a net out, of course, I'm scarred for life.
So anyway now I can make some of the food. Any "kitchen" will do for making food; I've long had a diner modelled on Johnny Rockets in my side room, so the system kitchen in there is fine, or the gas ranges. Sadly campfires don't seem to be kitchens.
Trouble is, I only really use food on the islands, to break rocks. And normally I just carry a stack of apples with me. Oh good grief, I drank "Tomato Puree" to get it out of my inv, and it was worth 5 meals. Just guzzled down a six-pack of katsup, as one does. Well, happily I have a couple toilets in scenic poopin' spots around my island… yes, before the Rick & Morty episode. In case you didn't know, using a toilet removes all your "meals" so you don't break rocks & dig up trees you didn't mean to. UUUURP! But now this means I have to do all the non-breaking work on an island (hitting rocks!), then eat the food I brought, then finally break all the things.
The iPhone NintendoSwitchOnline app has a "Nook Link" section, which has been generally useless, but they've added a bunch of new rewards (toilet paper! After 2 years since the start of pandemic, finally Nook gets some TP in!) and utilities, the Newsletter is pretty interesting, even tracks your turnip prices.