[Makisuo]

Summary

• deploy-prd-eu now needs only ingest-binary, so the EU instance deploys alongside US instead of after it.
• Each instance has its own stage, environment and database, so the two runs do not collide. The ingest binary is still built once and shared.

Trade-off

The sequencing acted as a canary only for deploy-time failures (Alchemy deploy, migrations, the revision check). A broken migration or failed deploy now reaches both instances. Runtime bugs were never caught by it, since EU started as soon as US went green.

Test plan

• Next push to main: both deploy jobs start after ingest-binary and deployment-gate reports both results.

🤖 Generated with Claude Code

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[maple-review-bot]

Maple review

🟢 Confidence 10/10 · safe to merge
Two-line workflow change; parallel instances share no state — distinct stage, DB and account-wide resources owned by us only. Loss of the US canary is intentional and stated.
_{no findings · tests not needed · risk medium}

deploy-prd-eu now waits only on ingest-binary, so both production instances deploy at the same time. The instances share no mutable resource, so the change is safe to merge; it trades the US-as-canary sequencing for half the deploy time.

• deploy-prd-eu needs only ingest-binary, dropping its dependency on deploy-prd

What was checked

• Instances are isolated: MAPLE_STAGE prd/prd-eu (deploy-prd-instance.yml:28) and resolvePlanetscaleDatabase returns maple vs maple-eu (stage.ts:232)
• No shared deploy resource: profile.deploys.sharedApps is false for prd-eu (profile.test.ts:22), and account-wide Workers Observability destinations are owned only by us (observability.ts:17)
• deployment-gate still needs both jobs with always() (deploy-prd.yml:53), so a skipped or failed US deploy still fails the run

_{62392d6 · Updated on every push. Reply "won't fix" to dismiss a finding, or mention @maple-review-bot to ask about one.}

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Reviewing files that changed from the base of the PR and between 550269b and 62392d6.

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• .github/workflows/deploy-prd.yml

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