Alternatively Midsommervisen, written in 1885, with the popular melody rewritten in 1980: https://youtu.be/q4i-5Df0oVc

Is sung on Sankt Hans Aften every year while roasting a (sculpture of a) witch on a huge bonfire.

Skipper Klements morgensang: https://youtu.be/C0QQzXgKwOI?si=Ifno3B832V7P33D- A song from 1970 (I actually thought it was way older) about a civil war in 1534

I think you meant "powers of two" not "square numbers" near the end there

There are (at least) 3 types of attraction: Sexual, romantic and aesthetic

Yes, the article explains what Control Net is for those of us who haven't heard of it before. And the article says that Control Net was (apparently) initially meant to be used for qr codes.

Since you guys are new I would like to direct your attention to the following excellent resources:

• https://2e.aonprd.com/ - Has all the rules for Pathfinder 2e
• https://pathbuilder2e.com/ - Character creator for Pathfinder 2e. Free, but requires paying a small one-time amount to get access to Free Archetypes, Pets and Cloud Storage
• https://wanderersguide.app/ - Character creator for Pathfinder 2e. Free, but a Patreon subscription is required for more than 6 characters (I might be wrong on this part)
• https://www.youtube.com/@HowItsPlayed - Excellent YouTube channel with videos about most rules
• https://imgur.com/LjllYua - Overview of the classes and their general strengths
• https://foundryvtt.com/ - Virtual tabletop with excellent pf2e integration. One time purchase for GM + ongoing hosting cost

As someone who likes to build their characters ahead of their current level I too prefer Pathbuilder, though for new players Wanderers Guide might be a bit more hand-holdy.

I believe both of them can output a pdf of the character sheet if you prefer to play without tablets/phones, and both can handle at-table play, though for Pathbuilder specifically I would recommend a tablet/laptop over a phone, because the website is a bit more friendly for at-table play.

A third term is aesthetic attraction, which is "I like looking at that person" but not necessarily "I want to have intercourse with that person"

Foundry is the only vtt which is regularly recommended for pf2e pretty much everywhere. It had excellent integration from what I hear (though I haven't tried it myself other that a one-shot)

The immediately obvious way to make such a disease is to make it an actual disease using the affliction rules. This however would get easier to deal with as your characters level up, since the DC will stay constant but the PCs saves will go up. Another way to go about it would be to have a lost of conditions, which accumulate for each day/week. So on the first day/week you gain Clumsy 1, then also Enfeebled 1, then also Clumsy 2 and so forth. This will very quickly become VERY punishing though, unless you carefully pick conditions that don't affect your PCs very much. The entire list of conditions can be found here. I would probably use Fatigued and Flat-footed for the first few levels and then the ones listed under Lowered abilities after that, maybe even throwing in a Doomed or two along the way. But as I said, this can very quickly become VERY punishing.

I would recommend starting over at Lvl 1, because characters get quite a lot of options over the levels, so starting with only the Lvl 1 options can simplify things quite a bit. Though I know that some people have done a "You are depowered for some reason" or "You are dreaming of a time when you weren't as strong" period to somewhat quickly level up from one to where you were. If you do this, be aware that characters will end up differently than your 5e versions, and that pf2e expected certain magical items at certain levels, such as Potency and Striking runes for martials and Wands and Staves for Casters.

And the Archives of Nethys are found at https://2e.aonprd.com (make sure the 2e is part of the URL, or you might be looking at 1e stuff)