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Upgrade workspace to TypeScript 6#2700

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nathanc/upgrade-to-ts6
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Upgrade workspace to TypeScript 6#2700
NathanColosimo wants to merge 5 commits into
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nathanc/upgrade-to-ts6

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@NathanColosimo

@NathanColosimo NathanColosimo commented Jun 29, 2026

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Summary

  • Upgrade the workspace TypeScript catalog from 5.9.3 to 6.0.3 and refresh the pnpm lockfile.
  • Apply the TS6 config migrations this repo needs: explicit rootDir where package source lives under src, target/types defaults in the shared base config, remove unnecessary baseUrl usage where tooling does not require it, and update old node module resolution where TS6 rejects it.
  • Fix TS6 follow-on issues in package builds/tests:
    • use the public @workflow/core/runtime export instead of the dist path from @workflow/next
    • preserve RuntimeDecryptionError.context as an optional runtime property with declare
    • add a CSS module declaration for the web package
    • teach the docs typechecker to ignore TS6's missing side-effect-import diagnostic for intentionally unresolved app-local examples

Why TS6 here, not TS7 yet?

TypeScript 7.0 RC is available as the new native/Go compiler via typescript@rc, and Microsoft's RC post says it is intended to be stable and compatible for CLI/editor workflows. The important caveat for this repo is programmatic usage: the same post says a stable programmatic API is not expected until at least TypeScript 7.1, and recommends keeping TypeScript 6 available side-by-side for tooling that imports typescript directly.

This repository is not only invoking tsc; it imports and uses TypeScript APIs directly in a few places:

  • packages/docs-typecheck/src/type-checker.ts uses ts.createProgram, compiler hosts, source files, and diagnostics.
  • packages/typescript-plugin/src/index.ts imports typescript/lib/tsserverlibrary for the language service plugin.
  • packages/web-shared/test/serializable-revivers.test.ts imports TypeScript AST/parser APIs in a test.

So this PR intentionally moves us to stable TS6 first. That gets the TS6 behavior changes out of the way, and it should make a later TS7 migration smaller once the programmatic/tsserver API story is stable enough for our direct usage.

Reference: https://devblogs.microsoft.com/typescript/announcing-typescript-7-0-rc/

Validation

  • pnpm install --frozen-lockfile
  • pnpm build
  • pnpm typecheck
  • pnpm test
  • pnpm test:docs
  • pnpm --filter @workflow/docs-typecheck build
  • APP_NAME=nest pnpm vitest run packages/core/e2e/local-build.test.ts
  • node --test ".github/scripts/**/*.test.js"
  • pnpm changeset status --since=main
  • pnpm exec lint-staged

Note: several upstream packages still declare TypeScript peer ranges that only mention 5.x, so pnpm prints peer warnings during install. The workspace build, typecheck, docs typecheck, and tests all pass against 6.0.3.

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⚠️ No Changeset found

Latest commit: 4a527a7

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

@vercel

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🧪 E2E Test Results

⚠️ Results below are stale and not from the latest commit. This comment will be updated when CI completes on the latest run.

Tests are running...


_Started at: _


Some tests failed

Summary

Passed Failed Skipped Total
❌ ▲ Vercel Production 1441 1 230 1672
✅ 💻 Local Development 1605 0 219 1824
✅ 📦 Local Production 1605 0 219 1824
✅ 🐘 Local Postgres 1593 0 231 1824
✅ 🪟 Windows 152 0 0 152
✅ 📋 Other 885 0 179 1064
Total 7281 1 1078 8360

❌ Failed Tests

▲ Vercel Production (1 failed)

nextjs-turbopack (1 failed):

  • error handling catchability step throw of a non-Error value preserves it as cause on the wrapping FatalError

Details by Category

❌ ▲ Vercel Production
App Passed Failed Skipped
✅ astro 125 0 27
✅ example 125 0 27
✅ express 125 0 27
✅ fastify 125 0 27
✅ hono 125 0 27
❌ nextjs-turbopack 148 1 3
✅ nextjs-webpack 149 0 3
✅ nitro 125 0 27
✅ nuxt 125 0 27
✅ sveltekit 144 0 8
✅ vite 125 0 27
✅ 💻 Local Development
App Passed Failed Skipped
✅ astro-stable 127 0 25
✅ express-stable 127 0 25
✅ fastify-stable 127 0 25
✅ hono-stable 127 0 25
✅ nextjs-turbopack-canary 133 0 19
✅ nextjs-turbopack-stable 152 0 0
✅ nextjs-webpack-canary 133 0 19
✅ nextjs-webpack-stable 152 0 0
✅ nitro-stable 127 0 25
✅ nuxt-stable 127 0 25
✅ sveltekit-stable 146 0 6
✅ vite-stable 127 0 25
✅ 📦 Local Production
App Passed Failed Skipped
✅ astro-stable 127 0 25
✅ express-stable 127 0 25
✅ fastify-stable 127 0 25
✅ hono-stable 127 0 25
✅ nextjs-turbopack-canary 133 0 19
✅ nextjs-turbopack-stable 152 0 0
✅ nextjs-webpack-canary 133 0 19
✅ nextjs-webpack-stable 152 0 0
✅ nitro-stable 127 0 25
✅ nuxt-stable 127 0 25
✅ sveltekit-stable 146 0 6
✅ vite-stable 127 0 25
✅ 🐘 Local Postgres
App Passed Failed Skipped
✅ astro-stable 126 0 26
✅ express-stable 126 0 26
✅ fastify-stable 126 0 26
✅ hono-stable 126 0 26
✅ nextjs-turbopack-canary 132 0 20
✅ nextjs-turbopack-stable 151 0 1
✅ nextjs-webpack-canary 132 0 20
✅ nextjs-webpack-stable 151 0 1
✅ nitro-stable 126 0 26
✅ nuxt-stable 126 0 26
✅ sveltekit-stable 145 0 7
✅ vite-stable 126 0 26
✅ 🪟 Windows
App Passed Failed Skipped
✅ nextjs-turbopack 152 0 0
✅ 📋 Other
App Passed Failed Skipped
✅ e2e-local-dev-nest-stable 127 0 25
✅ e2e-local-dev-tanstack-start- 127 0 25
✅ e2e-local-postgres-nest-stable 126 0 26
✅ e2e-local-postgres-tanstack-start- 126 0 26
✅ e2e-local-prod-nest-stable 127 0 25
✅ e2e-local-prod-tanstack-start- 127 0 25
✅ e2e-vercel-prod-tanstack-start 125 0 27

📋 View full workflow run


Some E2E test jobs failed:

  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success

Check the workflow run for details.

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📊 Benchmark Results

⚠️ Results below are stale and not from the latest commit. This comment will be updated when CI completes on the latest run.

Benchmarks are running...


_Started at: _


📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 0.047s (+6.6% 🔺) 1.006s (~) 0.959s 10 1.00x
💻 Local Express 0.047s (-2.9%) 1.006s (~) 0.959s 10 1.00x
💻 Local Next.js (Turbopack) 0.052s (-6.1% 🟢) 1.005s (~) 0.953s 10 1.12x
🐘 Postgres Next.js (Turbopack) 0.062s (+1.5%) 1.013s (~) 0.951s 10 1.32x
🐘 Postgres Express 0.064s (~) 1.012s (~) 0.948s 10 1.36x
🐘 Postgres Nitro 0.067s (+2.0%) 1.013s (~) 0.946s 10 1.43x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 0.320s (+23.4% 🔺) 2.322s (+10.5% 🔺) 2.002s 10 1.00x
▲ Vercel Nitro 0.407s (+93.5% 🔺) 2.167s (+7.3% 🔺) 1.760s 10 1.27x
▲ Vercel Next.js (Turbopack) 0.752s (+206.6% 🔺) 2.567s (+8.1% 🔺) 1.814s 10 2.35x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 1.081s (~) 2.006s (~) 0.925s 10 1.00x
💻 Local Next.js (Turbopack) 1.083s (-0.9%) 2.006s (~) 0.923s 10 1.00x
💻 Local Express 1.087s (~) 2.006s (~) 0.920s 10 1.00x
🐘 Postgres Next.js (Turbopack) 1.094s (~) 2.011s (~) 0.917s 10 1.01x
🐘 Postgres Nitro 1.098s (~) 2.009s (~) 0.911s 10 1.02x
🐘 Postgres Express 1.101s (+0.9%) 2.009s (~) 0.908s 10 1.02x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 1.503s (+7.4% 🔺) 2.901s (-5.7% 🟢) 1.397s 10 1.00x
▲ Vercel Nitro 1.521s (+9.9% 🔺) 3.487s (+21.4% 🔺) 1.966s 10 1.01x
▲ Vercel Next.js (Turbopack) 2.068s (-12.2% 🟢) 4.176s (+13.4% 🔺) 2.108s 10 1.38x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 10.446s (~) 11.023s (~) 0.577s 3 1.00x
💻 Local Next.js (Turbopack) 10.455s (~) 11.021s (~) 0.567s 3 1.00x
🐘 Postgres Nitro 10.457s (~) 11.016s (~) 0.559s 3 1.00x
💻 Local Express 10.467s (~) 11.024s (~) 0.557s 3 1.00x
🐘 Postgres Express 10.537s (+0.7%) 11.018s (~) 0.482s 3 1.01x
🐘 Postgres Next.js (Turbopack) 10.542s (~) 11.019s (~) 0.478s 3 1.01x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 12.118s (+3.4%) 14.203s (+3.8%) 2.085s 3 1.00x
▲ Vercel Express 12.425s (+6.4% 🔺) 14.064s (+6.1% 🔺) 1.639s 3 1.03x
▲ Vercel Next.js (Turbopack) 13.974s (+6.3% 🔺) 16.408s (+10.3% 🔺) 2.434s 2 1.15x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 13.556s (~) 14.028s (~) 0.472s 5 1.00x
🐘 Postgres Express 13.599s (~) 14.019s (~) 0.420s 5 1.00x
🐘 Postgres Nitro 13.623s (~) 14.020s (~) 0.397s 5 1.00x
💻 Local Next.js (Turbopack) 13.636s (-0.7%) 14.026s (~) 0.390s 5 1.01x
💻 Local Express 13.654s (~) 14.028s (~) 0.374s 5 1.01x
🐘 Postgres Next.js (Turbopack) 13.674s (~) 14.024s (~) 0.350s 5 1.01x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 17.319s (+5.4% 🔺) 19.003s (+5.3% 🔺) 1.684s 4 1.00x
▲ Vercel Nitro 17.343s (+6.6% 🔺) 19.487s (+4.6%) 2.144s 4 1.00x
▲ Vercel Next.js (Turbopack) 17.771s (-5.2% 🟢) 19.694s (-4.2%) 1.922s 4 1.03x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 12.098s (-1.1%) 13.019s (~) 0.921s 7 1.00x
💻 Local Nitro 12.099s (-1.1%) 13.025s (~) 0.925s 7 1.00x
🐘 Postgres Express 12.136s (~) 13.019s (~) 0.883s 7 1.00x
💻 Local Next.js (Turbopack) 12.202s (-1.8%) 13.024s (~) 0.822s 7 1.01x
💻 Local Express 12.208s (~) 13.025s (~) 0.817s 7 1.01x
🐘 Postgres Next.js (Turbopack) 12.544s (~) 13.161s (~) 0.617s 7 1.04x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 22.178s (+25.4% 🔺) 23.989s (+25.1% 🔺) 1.811s 4 1.00x
▲ Vercel Nitro 22.715s (+26.8% 🔺) 24.872s (+26.0% 🔺) 2.157s 4 1.02x
▲ Vercel Next.js (Turbopack) 24.948s (+22.3% 🔺) 26.938s (+19.4% 🔺) 1.990s 4 1.12x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.177s (-2.5%) 2.008s (~) 0.831s 15 1.00x
🐘 Postgres Express 1.189s (+0.6%) 2.008s (~) 0.819s 15 1.01x
🐘 Postgres Next.js (Turbopack) 1.197s (~) 2.008s (~) 0.812s 15 1.02x
💻 Local Nitro 1.413s (+2.5%) 2.006s (~) 0.593s 15 1.20x
💻 Local Express 1.452s (+1.5%) 2.007s (~) 0.554s 15 1.23x
💻 Local Next.js (Turbopack) 1.454s (-4.3%) 2.006s (~) 0.552s 15 1.24x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 2.496s (+13.4% 🔺) 3.784s (+8.2% 🔺) 1.289s 8 1.00x
▲ Vercel Nitro 2.765s (+21.2% 🔺) 4.462s (+15.9% 🔺) 1.697s 7 1.11x
▲ Vercel Next.js (Turbopack) 3.615s (+13.3% 🔺) 5.411s (+10.4% 🔺) 1.795s 6 1.45x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.326s (~) 2.394s (~) 1.068s 13 1.00x
🐘 Postgres Express 1.327s (-2.7%) 2.827s (+22.1% 🔺) 1.501s 11 1.00x
🐘 Postgres Next.js (Turbopack) 1.328s (+0.7%) 2.919s (~) 1.591s 11 1.00x
💻 Local Express 2.348s (-14.3% 🟢) 3.111s (-3.1%) 0.763s 10 1.77x
💻 Local Nitro 2.477s (~) 3.009s (+3.1%) 0.532s 10 1.87x
💻 Local Next.js (Turbopack) 2.739s (+6.6% 🔺) 3.109s (~) 0.370s 10 2.07x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 3.288s (+30.6% 🔺) 5.009s (+30.9% 🔺) 1.720s 6 1.00x
▲ Vercel Express 3.613s (+47.6% 🔺) 5.272s (+47.8% 🔺) 1.659s 6 1.10x
▲ Vercel Next.js (Turbopack) 5.545s (+54.9% 🔺) 7.708s (+45.1% 🔺) 2.163s 4 1.69x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 1.604s (~) 4.137s (~) 2.533s 8 1.00x
🐘 Postgres Nitro 1.610s (~) 4.011s (-3.1%) 2.402s 8 1.00x
🐘 Postgres Next.js (Turbopack) 2.961s (~) 5.848s (-2.8%) 2.888s 6 1.85x
💻 Local Nitro 5.252s (-8.4% 🟢) 5.516s (-16.6% 🟢) 0.264s 6 3.27x
💻 Local Express 6.605s (-7.0% 🟢) 7.418s (-2.6%) 0.814s 5 4.12x
💻 Local Next.js (Turbopack) 7.759s (+14.3% 🔺) 8.768s (+16.6% 🔺) 1.009s 4 4.84x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 3.555s (+32.6% 🔺) 5.067s (+12.2% 🔺) 1.512s 6 1.00x
▲ Vercel Nitro 3.755s (+39.3% 🔺) 5.727s (+26.7% 🔺) 1.973s 6 1.06x
▲ Vercel Next.js (Turbopack) 4.973s (+22.5% 🔺) 6.812s (+14.1% 🔺) 1.840s 5 1.40x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 1.178s (-1.2%) 2.007s (~) 0.829s 15 1.00x
🐘 Postgres Nitro 1.181s (-1.1%) 2.007s (~) 0.825s 15 1.00x
🐘 Postgres Next.js (Turbopack) 1.193s (-1.0%) 2.007s (~) 0.814s 15 1.01x
💻 Local Nitro 1.411s (+4.6%) 2.007s (~) 0.596s 15 1.20x
💻 Local Express 1.440s (~) 2.007s (~) 0.566s 15 1.22x
💻 Local Next.js (Turbopack) 1.450s (-2.3%) 2.007s (~) 0.557s 15 1.23x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 2.488s (+19.5% 🔺) 3.834s (+15.0% 🔺) 1.346s 8 1.00x
▲ Vercel Nitro 2.713s (+38.3% 🔺) 4.418s (+18.1% 🔺) 1.705s 7 1.09x
▲ Vercel Next.js (Turbopack) 4.287s (+39.3% 🔺) 6.050s (+27.0% 🔺) 1.763s 5 1.72x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 1.295s (-1.9%) 2.315s (-3.3%) 1.021s 13 1.00x
🐘 Postgres Nitro 1.317s (+0.9%) 2.676s (+6.7% 🔺) 1.359s 12 1.02x
🐘 Postgres Next.js (Turbopack) 1.318s (~) 3.009s (~) 1.691s 10 1.02x
💻 Local Express 2.556s (+0.8%) 3.109s (-3.1%) 0.553s 10 1.97x
💻 Local Nitro 2.608s (+5.4% 🔺) 2.918s (-3.0%) 0.310s 11 2.01x
💻 Local Next.js (Turbopack) 2.639s (-1.9%) 3.008s (-10.0% 🟢) 0.369s 10 2.04x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 3.397s (+41.3% 🔺) 4.900s (+34.3% 🔺) 1.503s 7 1.00x
▲ Vercel Nitro 3.417s (+28.3% 🔺) 5.291s (+26.9% 🔺) 1.875s 6 1.01x
▲ Vercel Next.js (Turbopack) 4.908s (+46.3% 🔺) 6.888s (+37.2% 🔺) 1.980s 5 1.44x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 50 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 1.597s (-1.9%) 4.136s (~) 2.539s 8 1.00x
🐘 Postgres Nitro 1.608s (~) 4.136s (~) 2.528s 8 1.01x
🐘 Postgres Next.js (Turbopack) 3.289s (+28.2% 🔺) 6.017s (~) 2.728s 6 2.06x
💻 Local Nitro 6.121s (+0.7%) 7.013s (+2.9%) 0.892s 5 3.83x
💻 Local Next.js (Turbopack) 6.567s (-8.8% 🟢) 7.017s (-9.7% 🟢) 0.450s 5 4.11x
💻 Local Express 7.265s (+4.4%) 7.767s (~) 0.502s 4 4.55x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 3.666s (+22.2% 🔺) 5.554s (+12.9% 🔺) 1.888s 6 1.00x
▲ Vercel Express 3.704s (+22.1% 🔺) 5.181s (+10.7% 🔺) 1.477s 6 1.01x
▲ Vercel Next.js (Turbopack) 5.441s (+22.1% 🔺) 7.394s (+20.3% 🔺) 1.952s 5 1.48x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 0.556s (-5.7% 🟢) 1.005s (-1.6%) 0.450s 60 1.00x
🐘 Postgres Express 0.562s (+2.5%) 1.041s (+1.8%) 0.479s 58 1.01x
🐘 Postgres Nitro 0.563s (+4.3%) 1.040s (+1.7%) 0.477s 58 1.01x
🐘 Postgres Next.js (Turbopack) 0.565s (+2.6%) 1.006s (~) 0.441s 60 1.02x
💻 Local Next.js (Turbopack) 0.588s (-5.7% 🟢) 1.005s (~) 0.417s 60 1.06x
💻 Local Express 0.609s (+2.9%) 1.022s (+1.7%) 0.414s 59 1.10x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 4.074s (+62.2% 🔺) 5.471s (+36.4% 🔺) 1.398s 11 1.00x
▲ Vercel Nitro 4.329s (+62.5% 🔺) 6.173s (+44.2% 🔺) 1.843s 11 1.06x
▲ Vercel Next.js (Turbopack) 4.707s (+20.7% 🔺) 6.573s (+17.2% 🔺) 1.866s 10 1.16x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.288s (~) 2.007s (~) 0.719s 45 1.00x
🐘 Postgres Next.js (Turbopack) 1.337s (+2.2%) 2.008s (~) 0.671s 45 1.04x
🐘 Postgres Express 1.347s (+4.0%) 2.053s (+2.3%) 0.706s 44 1.05x
💻 Local Nitro 1.376s (-3.3%) 2.006s (~) 0.630s 45 1.07x
💻 Local Next.js (Turbopack) 1.482s (-3.7%) 2.006s (~) 0.524s 45 1.15x
💻 Local Express 1.530s (+4.0%) 2.029s (+1.1%) 0.498s 45 1.19x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 8.919s (+48.1% 🔺) 10.797s (+41.1% 🔺) 1.877s 9 1.00x
▲ Vercel Express 9.022s (+51.1% 🔺) 10.419s (+43.6% 🔺) 1.397s 9 1.01x
▲ Vercel Next.js (Turbopack) 11.738s (+42.0% 🔺) 13.868s (+42.1% 🔺) 2.129s 7 1.32x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 2.525s (-0.5%) 3.033s (-0.8%) 0.508s 40 1.00x
🐘 Postgres Express 2.620s (+1.7%) 3.085s (~) 0.466s 39 1.04x
🐘 Postgres Next.js (Turbopack) 2.701s (~) 3.009s (-2.5%) 0.307s 40 1.07x
💻 Local Nitro 2.929s (-7.7% 🟢) 3.245s (-14.4% 🟢) 0.316s 38 1.16x
💻 Local Next.js (Turbopack) 3.231s (-5.1% 🟢) 4.009s (-0.8%) 0.778s 30 1.28x
💻 Local Express 3.318s (+3.2%) 4.009s (~) 0.691s 30 1.31x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 18.980s (+62.6% 🔺) 20.615s (+56.0% 🔺) 1.635s 6 1.00x
▲ Vercel Nitro 20.312s (+68.5% 🔺) 22.419s (+63.1% 🔺) 2.107s 6 1.07x
▲ Vercel Next.js (Turbopack) 23.695s (+45.0% 🔺) 25.931s (+41.9% 🔺) 2.236s 5 1.25x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.170s (-3.6%) 1.006s (~) 0.837s 60 1.00x
🐘 Postgres Express 0.210s (-2.0%) 1.007s (~) 0.796s 60 1.24x
🐘 Postgres Nitro 0.213s (-0.6%) 1.006s (~) 0.793s 60 1.26x
💻 Local Nitro 0.448s (+0.7%) 1.004s (~) 0.557s 60 2.64x
💻 Local Express 0.477s (+8.8% 🔺) 1.005s (~) 0.528s 60 2.81x
💻 Local Next.js (Turbopack) 0.637s (-2.9%) 1.022s (~) 0.385s 59 3.76x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 1.373s (+33.8% 🔺) 2.879s (+22.7% 🔺) 1.506s 21 1.00x
▲ Vercel Nitro 1.497s (+44.2% 🔺) 3.196s (+21.8% 🔺) 1.699s 19 1.09x
▲ Vercel Next.js (Turbopack) 2.772s (+32.8% 🔺) 4.569s (+21.0% 🔺) 1.798s 14 2.02x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.289s (+2.6%) 1.006s (-1.1%) 0.717s 90 1.00x
🐘 Postgres Nitro 0.319s (-1.1%) 1.006s (~) 0.686s 90 1.10x
🐘 Postgres Express 0.328s (-1.8%) 1.017s (+1.1%) 0.689s 89 1.13x
💻 Local Express 2.151s (+2.2%) 2.823s (+3.1%) 0.672s 32 7.43x
💻 Local Nitro 2.243s (+2.6%) 2.912s (+4.1%) 0.669s 31 7.75x
💻 Local Next.js (Turbopack) 2.828s (+0.7%) 3.181s (-10.4% 🟢) 0.352s 29 9.77x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 2.038s (+53.2% 🔺) 3.980s (+41.9% 🔺) 1.943s 23 1.00x
▲ Vercel Express 2.057s (+55.8% 🔺) 3.618s (+41.4% 🔺) 1.561s 26 1.01x
▲ Vercel Next.js (Turbopack) 3.502s (+33.6% 🔺) 5.559s (+37.5% 🔺) 2.057s 17 1.72x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 0.507s (-2.5%) 1.059s (+2.6%) 0.552s 114 1.00x
🐘 Postgres Express 0.509s (-4.1%) 1.023s (-2.5%) 0.514s 118 1.00x
🐘 Postgres Next.js (Turbopack) 0.513s (-2.7%) 2.985s (-4.1%) 2.472s 41 1.01x
💻 Local Nitro 9.300s (-3.6%) 10.194s (-5.4% 🟢) 0.894s 12 18.34x
💻 Local Express 10.143s (+0.8%) 11.208s (~) 1.065s 11 20.01x
💻 Local Next.js (Turbopack) 10.440s (+2.6%) 11.297s (+0.8%) 0.858s 11 20.59x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 2.910s (+65.3% 🔺) 4.533s (+31.9% 🔺) 1.623s 27 1.00x
▲ Vercel Nitro 3.326s (+63.9% 🔺) 5.149s (+30.9% 🔺) 1.823s 24 1.14x
▲ Vercel Next.js (Turbopack) 4.726s (+19.7% 🔺) 6.614s (+18.1% 🔺) 1.888s 19 1.62x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Stream Benchmarks (includes TTFB metrics)
workflow with stream

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 1.138s (-2.2%) 2.004s (~) 0.010s (-3.8%) 2.017s (~) 0.878s 10 1.00x
💻 Local Next.js (Turbopack) 1.139s (-2.3%) 1.966s (~) 0.012s (-7.1% 🟢) 2.019s (~) 0.879s 10 1.00x
🐘 Postgres Express 1.157s (-0.6%) 1.998s (~) 0.001s (~) 2.010s (~) 0.853s 10 1.02x
🐘 Postgres Next.js (Turbopack) 1.159s (~) 2.001s (~) 0.001s (+7.7% 🔺) 2.011s (~) 0.852s 10 1.02x
🐘 Postgres Nitro 1.161s (-0.8%) 1.995s (~) 0.001s (+16.7% 🔺) 2.011s (~) 0.850s 10 1.02x
💻 Local Express 1.161s (~) 2.006s (~) 0.012s (-0.8%) 2.021s (~) 0.860s 10 1.02x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 2.134s (+5.4% 🔺) 3.516s (+7.2% 🔺) 2.416s (+42.1% 🔺) 6.428s (+16.7% 🔺) 4.294s 10 1.00x
▲ Vercel Express 2.154s (+7.9% 🔺) 3.197s (+8.5% 🔺) 2.872s (+38.7% 🔺) 6.512s (+18.2% 🔺) 4.358s 10 1.01x
▲ Vercel Next.js (Turbopack) 3.847s (+7.2% 🔺) 4.075s (+3.3%) 1.599s (+11.6% 🔺) 7.293s (+5.4% 🔺) 3.446s 10 1.80x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 1.523s (-1.5%) 2.010s (~) 0.013s (+12.5% 🔺) 2.026s (~) 0.503s 30 1.00x
🐘 Postgres Nitro 1.538s (~) 2.001s (~) 0.005s (-6.1% 🟢) 2.024s (~) 0.486s 30 1.01x
🐘 Postgres Express 1.551s (-0.8%) 2.001s (~) 0.005s (+0.7%) 2.025s (~) 0.474s 30 1.02x
💻 Local Express 1.560s (~) 2.011s (~) 0.011s (-13.7% 🟢) 2.026s (~) 0.466s 30 1.02x
🐘 Postgres Next.js (Turbopack) 1.595s (-3.5%) 2.009s (~) 0.005s (-9.5% 🟢) 2.026s (~) 0.431s 30 1.05x
💻 Local Next.js (Turbopack) 1.605s (-3.0%) 1.968s (-1.7%) 0.013s (-3.1%) 2.024s (-1.7%) 0.420s 30 1.05x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 6.495s (+15.2% 🔺) 8.271s (+16.2% 🔺) 0.326s (+40.5% 🔺) 9.120s (+16.3% 🔺) 2.626s 7 1.00x
▲ Vercel Express 7.040s (+26.4% 🔺) 8.314s (+21.4% 🔺) 0.229s (+6.0% 🔺) 8.984s (+20.0% 🔺) 1.944s 7 1.08x
▲ Vercel Next.js (Turbopack) 11.043s (+19.9% 🔺) 11.668s (+12.6% 🔺) 0.243s (-54.4% 🟢) 13.416s (+12.9% 🔺) 2.374s 5 1.70x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 0.754s (-1.9%) 1.084s (+3.5%) 0.000s (+205.5% 🔺) 1.100s (+2.3%) 0.346s 55 1.00x
🐘 Postgres Express 0.788s (+2.7%) 1.063s (+1.7%) 0.000s (-66.1% 🟢) 1.078s (+1.7%) 0.290s 56 1.05x
🐘 Postgres Next.js (Turbopack) 0.990s (-5.0% 🟢) 1.386s (-9.8% 🟢) 0.000s (NaN%) 1.394s (-9.9% 🟢) 0.403s 44 1.31x
💻 Local Nitro 1.202s (-7.2% 🟢) 1.981s (-1.6%) 0.000s (-46.2% 🟢) 1.983s (-1.6%) 0.781s 31 1.59x
💻 Local Express 1.252s (-3.2%) 1.981s (-1.6%) 0.000s (+117.7% 🔺) 1.984s (-1.6%) 0.732s 31 1.66x
💻 Local Next.js (Turbopack) 1.420s (+0.7%) 1.978s (~) 0.000s (-57.7% 🟢) 2.016s (~) 0.596s 30 1.88x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 3.830s (+28.7% 🔺) 5.281s (+21.0% 🔺) 0.000s (-100.0% 🟢) 5.777s (+18.7% 🔺) 1.947s 11 1.00x
▲ Vercel Express 3.990s (+38.2% 🔺) 5.006s (+20.1% 🔺) 0.000s (+16.7% 🔺) 5.459s (+18.5% 🔺) 1.469s 12 1.04x
▲ Vercel Next.js (Turbopack) 5.836s (+30.2% 🔺) 6.260s (+15.0% 🔺) 0.000s (+Infinity% 🔺) 7.694s (+22.5% 🔺) 1.858s 8 1.52x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.743s (-0.7%) 2.340s (+2.1%) 0.000s (-100.0% 🟢) 2.371s (+2.9%) 0.628s 26 1.00x
🐘 Postgres Express 1.825s (+8.1% 🔺) 2.253s (-2.1%) 0.000s (-3.7%) 2.287s (-1.4%) 0.461s 27 1.05x
🐘 Postgres Next.js (Turbopack) 2.672s (-7.9% 🟢) 3.265s (-3.6%) 0.000s (-5.3% 🟢) 3.275s (-3.9%) 0.603s 19 1.53x
💻 Local Nitro 3.592s (-3.8%) 4.092s (-3.2%) 0.001s (+37.5% 🔺) 4.098s (-3.1%) 0.506s 15 2.06x
💻 Local Express 3.681s (~) 4.164s (~) 0.001s (+125.0% 🔺) 4.170s (~) 0.489s 15 2.11x
💻 Local Next.js (Turbopack) 3.809s (+4.4%) 4.189s (+1.6%) 0.001s (~) 4.235s (+1.6%) 0.426s 15 2.19x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 5.594s (+30.8% 🔺) 6.725s (+22.7% 🔺) 0.000s (-100.0% 🟢) 7.197s (+21.4% 🔺) 1.602s 9 1.00x
▲ Vercel Nitro 6.020s (+39.7% 🔺) 7.327s (+28.0% 🔺) 0.000s (+Infinity% 🔺) 7.881s (+26.7% 🔺) 1.861s 8 1.08x
▲ Vercel Next.js (Turbopack) 8.989s (+39.7% 🔺) 9.847s (+39.9% 🔺) 0.000s (NaN%) 10.829s (+32.6% 🔺) 1.840s 6 1.61x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World 🥇 Fastest Framework Wins
💻 Local Nitro 18/21
🐘 Postgres Nitro 10/21
▲ Vercel Express 13/21
Fastest World by Framework

Winner determined by most benchmark wins

Framework 🥇 Fastest World Wins
Express 🐘 Postgres 18/21
Next.js (Turbopack) 🐘 Postgres 15/21
Nitro 🐘 Postgres 14/21
Column Definitions
  • Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
  • TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
  • Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
  • Wall Time: Total testbench time (trigger workflow + poll for result)
  • Overhead: Testbench overhead (Wall Time - Workflow Time)
  • Samples: Number of benchmark iterations run
  • vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

  • 💻 Local: In-memory filesystem world (local development)
  • 🐘 Postgres: PostgreSQL database world (local development)
  • ▲ Vercel: Vercel production/preview deployment
  • 🌐 Turso: Community world (local development)
  • 🌐 MongoDB: Community world (local development)
  • 🌐 Redis: Community world (local development)
  • 🌐 Jazz: Community world (local development)
  • 🌐 Redis: Community world (local development)
  • 🌐 Redis + BullMQ: Community world (local development)
  • 🌐 Cloudflare: Community world (local development)
  • 🌐 MySQL: Community world (local development)
  • 🌐 Azure: Community world (local development)
  • 🌐 NATS JetStream: Community world (local development)
  • 🌐 Upstash: Community world (local development)
  • 🌐 Platformatic: Community world (local development)

📋 View full workflow run

@socket-security

socket-security Bot commented Jun 29, 2026

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Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff Package Supply Chain
Security
Vulnerability Quality Maintenance License
Addednpm/​typescript@​6.0.3100100909690

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@VaguelySerious VaguelySerious left a comment

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LGTM assuming CI passes

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2 participants