Poked at the app and saw no breakages, I'm reasonably satisfied! I think
the 17 -> 18 migration is designed to be pretty backwards-compatible,
especially since I didn't bother to do the `createRoot` stuff yet, which
is where more of the breaking things happen.
Moreover, this code is in a bit of a flimsy state anyway: it'll kinda
work if you're logged in at impress-2020.openneo.net, but that wasn't
intentionally engineered, and I'm not sure exactly what circumstances
cause those cookies to send vs not send?
My intent is to clean up to replace all this with login code that
references the main app instead… this'll require swapping out some
endpoints to refer to what the main app has, but I'm hoping that's not
so tricky to do, since the main app does offer basically all of this
functionality already anyway. (That's not to say it's simple, but I
think it's a migration in the right direction!)
I'm trying out a new editor setup, and it noticed that Prettier isn't
obviously installed! I think it makes sense to put it in dev deps, even
if there's not a direct hook calling it—though tbh maybe I should add it
to `yarn dev` somehow?
We add jsbuilding-rails to get esbuild running in the app, and then we copy-paste the files we need from impress-2020 into here!
I stopped at the point where it was building successfully, but it's not running correctly: it's not sure about `process.env` in `next`, and I think the right next step is to delete the NextJS deps altogether and use React Router instead.
