Pithos runs on the user's computer, so the pithos.sia website could only
describe it. Two ways in now:
- Open in browser (Theseus, desktop) opens the current page in the default
browser with a one-time sign-in link (60 s, single use), unlike the
host's reusable ?t= link.
- The website links to http://127.0.0.1:47621/open?path=/<user>/<drive>.
Any page or local program could follow that link, so the host first
asks the user in its own window (a native dialog on the desktop,
Theseus's approval prompt with the vault unlocked). Only loopback Host
names are accepted, one question at a time, and the website learns
nothing either way.
Sessions started this way are marked external, so the browser does not
get host-only controls such as Back to sidebar.