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Cloud saves: pin tak 9b539d8 and turn cloudSaves on (RFC 0016) - #14

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dmccoystephenson merged 1 commit into
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feat/cloud-saves
Oct 4, 2026
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dmccoystephenson merged 1 commit into
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feat/cloud-saves

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Overwinter is added to arcade cloud saves (Stephenson-Software RFC 0016), following Night Ferry (Night-Ferry#5).

  • tak pinned at 9b539d8 (tak#24, /tak/cloud.js), on top of the tak#22/#23 save guard already pinned (1bac386).
  • cloudSaves: true in the page config. Nothing changes for a player until they sign in and press Turn on cloud backup in the Saves panel; until then no /v1/saves request is made. IndexedDB is still written first and the cloud is never in the save path.
  • Alias host (RFC 0016 Open Question 8, interim): cloud saves run only on overwinter.play.danielstephenson.dev. tak's onArcadeHost() does not match the old overwinter.danielstephenson.dev alias, so that page never loads cloud.js and its saves stay in that browser; moving them over is Download my saves there and Load saves from a file on the arcade host (an import, which never replaces a save). The page's tip line says where backup is available.

Arcade-social only accepts uploads for games listed in the gateway's config/play/saves.yaml and, until the off-box backup exists, only from the owner's and the test account; that listing is a separate gateway PR.

Before this is merged (merging deploys to arcade), old-format saves are made on the live build in persistent browser profiles, on both the arcade host and the alias host, and are checked byte for byte after the deploy.

Tests: python -m pytest -q passes locally with tak 9b539d8.

🤖 Generated with Claude Code


drafted by Claude on behalf of Daniel Stephenson

Overwinter joins Night Ferry under RFC 0016. A signed-in player can turn on
cloud backup from the Saves panel on overwinter.play.danielstephenson.dev;
until then nothing changes and no /v1/saves request is made. The old
alias host never loads cloud.js (tak's onArcadeHost), so its saves stay
in that browser and move over with Download/Load as before.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@dmccoystephenson
dmccoystephenson merged commit d69e887 into main Oct 4, 2026
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