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tsup is deprecated and unmaintained. tsdown (built on Rolldown) is the official successor. This migration also removes the manual createRequire banner hack in the CLI config — tsdown auto-injects createRequire for ESM targeting Node.js. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Spawn node with built artifacts instead of tsx source in e2e tests, so build-related issues are caught. Remove 10 redundant tsdown configs (9 providers + runtime) that duplicated the root baseConfig. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
tsupwithtsdown(built on Rolldown) across all 23 packagescreateRequirebanner hack in CLI config — tsdown auto-injects it for ESM targeting Node.jsengines.nodeto@perstack/coreand@perstack/tuifor tsdown target auto-detectiontsdown.config.tsfrom TypeScript compilation in packages with local configs (.tsimport extension required by tsdown's config loader)Test plan
pnpm install— tsdown installed, tsup removedpnpm build— all 23 packages build successfullypnpm typecheck— all 23 packages passpnpm test— 92 test files, 1085 tests passpnpm format-and-lint— no new errorscreateRequireauto-injected inapps/perstack/dist/chunk-*.js__require("child_process")throwing shim — uses propercreateRequire(import.meta.url)🤖 Generated with Claude Code