Stay signed in, pick models that exist

Remote access

PandaCode Connect stays signed in across updates. Updating no longer asks you to sign in again. If 0.3.20 or 0.3.21 signed you out, 0.3.22 picks up your earlier sign-in by itself, as the same computer, so the computers you trusted stay trusted. A brief Keychain hiccup right after an update is retried quietly instead of signing you out, and your sign-in renews itself before it expires.
The model picker shows what the other computer has. For a task that runs on another computer, the picker lists only the providers and models installed there. If your current model isn't on the computer you pick, PandaCode switches to one that is and tells you; picking This computer again brings your choice back.

If the earlier sign-in can't be found (for example it was removed from Keychain), sign in once more in Settings → Remote access.
Remote access is covered by automated tests; it has not been tried between two real computers yet.

macOS (Apple silicon): open PandaCode-macOS-arm64.dmg and drag PandaCode to Applications. If macOS says it cannot verify the app, open System Settings > Privacy & Security and choose Open Anyway.
Windows x64: run PandaCode-Windows-x64-setup.exe. If SmartScreen warns about an unknown publisher, choose More info > Run anyway.
Linux x64: chmod +x PandaCode-Linux-x86_64.AppImage and run it.
Linux arm64: chmod +x PandaCode-Linux-aarch64.AppImage and run it.
Any of the above, from a terminal: npx pandacode downloads, verifies and installs the right build (macOS: signed locally automatically).

Each file has a .sha256 checksum beside it. Installed copies update themselves from this page. Build from source: see CONTRIBUTING.md.