fix: build image libraries for baseline VPS CPUs

Replace the SIMD-dependent WebAssembly fallback with source-built libvips and Sharp. Pin the libvips archive checksum, use baseline x86-64 compiler flags, retain the native binding and runtime libraries, and check JPEG/PNG/WebP processing before compilation and in the runtime image.

Lint, type checking, and content/security tests passed. Full Docker verification was stopped at the user request; production build and baseline CPU runtime verification remain pending.

Dockerfile

@@ -1,14 +1,33 @@
 # syntax=docker/dockerfile:1.7
 
-FROM node:22-alpine AS dependencies
+FROM node:22-alpine AS image-runtime
+
+# Distribution libraries support baseline CPUs and dispatch optional SIMD at runtime.
+RUN apk add --no-cache glib expat libjpeg-turbo libpng libwebp tiff lcms2 librsvg libstdc++
+
+FROM image-runtime AS image-build
+RUN apk add --no-cache python3 make g++ meson ninja pkgconf xz \
+    glib-dev expat-dev libjpeg-turbo-dev libpng-dev libwebp-dev tiff-dev lcms2-dev librsvg-dev
+
+ADD --checksum=sha256:3c41e1d5458081bfa4a5bc54e116c46259c75c6760a18027764555632b9dda3e https://github.com/libvips/libvips/releases/download/v8.18.6/vips-8.18.6.tar.xz /tmp/vips.tar.xz
+RUN if [ "$(uname -m)" = x86_64 ]; then export CFLAGS='-O2 -march=x86-64 -mtune=generic' CXXFLAGS='-O2 -march=x86-64 -mtune=generic'; fi \
+    && mkdir /tmp/vips && tar -xJf /tmp/vips.tar.xz -C /tmp/vips --strip-components=1 \
+    && meson setup /tmp/vips/build /tmp/vips --prefix=/opt/vips --libdir=lib \
+      --buildtype=release --auto-features=disabled \
+      -Dhighway=disabled -Dorc=disabled -Dcplusplus=true -Dexamples=false \
+      -Djpeg=enabled -Dpng=enabled -Dwebp=enabled -Dtiff=enabled -Dlcms=enabled -Drsvg=enabled -Dzlib=enabled \
+    && meson compile -C /tmp/vips/build -j 2 \
+    && meson install -C /tmp/vips/build
+
+FROM image-build AS dependencies
 
 WORKDIR /app
 
-# npm may build the native SQLite binding when no matching prebuild is available.
-RUN apk add --no-cache python3 make g++
-
 ARG NPM_REGISTRY=https://package-mirror.liara.ir/repository/npm/
-ENV NEXT_TELEMETRY_DISABLED=1
+ENV NEXT_TELEMETRY_DISABLED=1 \
+    PKG_CONFIG_PATH=/opt/vips/lib/pkgconfig \
+    LD_LIBRARY_PATH=/opt/vips/lib \
+    npm_config_nodedir=/usr/local
 
 COPY package.json package-lock.json ./
 RUN --mount=type=cache,id=portfolio-npm-node22,target=/root/.npm,sharing=locked \
@@ -17,8 +36,12 @@ RUN --mount=type=cache,id=portfolio-npm-node22,target=/root/.npm,sharing=locked
     --replace-registry-host=registry.npmjs.org \
     --include=optional
 
+# Compile Sharp against our baseline libvips, not its x86-64-v2 prebuilt binary.
+RUN if [ "$(uname -m)" = x86_64 ]; then export CFLAGS='-O2 -march=x86-64 -mtune=generic' CXXFLAGS='-O2 -march=x86-64 -mtune=generic'; fi \
+    && npm explore sharp -- npm run build
+
 COPY scripts/check-image-runtime.mjs ./scripts/check-image-runtime.mjs
-RUN node scripts/check-image-runtime.mjs
+RUN node scripts/check-image-runtime.mjs --require-source
 
 FROM dependencies AS verification
 
@@ -29,14 +52,15 @@ RUN --mount=type=cache,id=portfolio-next-node22,target=/app/.next/cache,sharing=
   npm run build
 RUN npm test
 
-FROM node:22-alpine AS runtime
+FROM image-runtime AS runtime
 
 WORKDIR /app
 ENV NODE_ENV=production \
     NEXT_TELEMETRY_DISABLED=1 \
     HOSTNAME=0.0.0.0 \
     PORT=3000 \
-    DATA_DIR=/data
+    DATA_DIR=/data \
+    LD_LIBRARY_PATH=/opt/vips/lib
 
 RUN addgroup --system --gid 1001 nodejs \
   && adduser --system --uid 1001 nextjs
@@ -44,6 +68,11 @@ RUN addgroup --system --gid 1001 nodejs \
 COPY --from=verification --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=verification --chown=nextjs:nodejs /app/.next/static ./.next/static
 COPY --from=verification --chown=nextjs:nodejs /app/public ./public
+COPY --from=image-build /opt/vips/lib /opt/vips/lib
+# Explicitly retain the custom binding even if Next's file tracer misses it.
+COPY --from=dependencies --chown=nextjs:nodejs /app/node_modules/sharp/src/build/Release/*.node ./node_modules/sharp/src/build/Release/
+COPY scripts/check-image-runtime.mjs ./scripts/check-image-runtime.mjs
+RUN node scripts/check-image-runtime.mjs --require-source
 RUN mkdir -p .next/cache /data && chown -R nextjs:nodejs .next/cache /data
 
 USER nextjs

SELF_HOSTING.md

@@ -57,10 +57,12 @@ Drizzle Kit, npm installs, or a compiler at runtime. Startup applies the committ
 SQL migrations and seeds samples only when the database is empty. `/api/health`
 checks database readiness without rendering the portfolio.
 
-Sharp uses native image processing where supported and includes a WebAssembly
+The Docker build compiles libvips and Sharp from source for baseline CPUs. This
-fallback for servers without the required x86-64 CPU features. The fallback
+supports VPS hosts that lack the features required by Sharp's prebuilt native
-preserves uploads and image optimization, but can use more CPU time. Keep
+and WebAssembly binaries. The first build takes longer; Docker caches the image
-`@img/sharp-wasm32` at the same version as `sharp` when upgrading.
+libraries for later application changes. Image processing is checked before
+Next.js compilation and again in the final runtime image. When upgrading Sharp,
+keep the libvips source version in the Dockerfile at or above Sharp's minimum.
 
 Use one application instance with a local filesystem. Do not mount the SQLite
 database over NFS/SMB, use an ephemeral serverless disk, or run multiple replicas

next.config.mjs

@@ -5,9 +5,7 @@ const nextConfig = {
   outputFileTracingIncludes: {
     '/*': [
       './migrations/**/*',
-      './node_modules/@img/sharp-wasm32/**/*',
+      './node_modules/sharp/src/build/Release/*.node',
-      './node_modules/@emnapi/runtime/**/*',
-      './node_modules/tslib/**/*',
     ],
   },
   outputFileTracingExcludes: {

package-lock.json

@@ -8,7 +8,6 @@
       "name": "portfolio-v2-antigravity",
       "version": "0.1.0",
       "dependencies": {
-        "@img/sharp-wasm32": "0.35.4",
         "better-auth": "^1.7.5",
         "better-sqlite3": "^13.0.3",
         "drizzle-orm": "^0.45.2",
@@ -33,6 +32,8 @@
         "esbuild": "^0.28.2",
         "eslint": "^9.39.5",
         "eslint-config-next": "^16.3.4",
+        "node-addon-api": "8.9.2",
+        "node-gyp": "12.4.0",
         "tsx": "^4.23.13",
         "typescript": "^5.7.3"
       }
@@ -457,6 +458,7 @@
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/@emnapi/runtime/-/runtime-1.11.3.tgz",
       "integrity": "sha512-Xz4Tpyki7XyrpbUK1jR1AhdAdaXyhhY4lZ3neLodmhpuWfy2PAQN5B46sAiU4liOXGLkHypn/qU+jvfWSCYYLA==",
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "tslib": "^2.4.0"
       }
@@ -1610,6 +1612,7 @@
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/@img/sharp-wasm32/-/sharp-wasm32-0.35.4.tgz",
       "integrity": "sha512-zQnl4Kwp7Q6NHsENtU2T/00Zi+w3AQNwz3+UaTyVBy2FpXrzXzGjndpK61onhZjRtRpQXxCTeqw19bVyXOh7jA==",
       "license": "Apache-2.0 AND LGPL-3.0-or-later AND MIT",
+      "optional": true,
       "dependencies": {
         "@emnapi/runtime": "^1.11.3"
       },
@@ -1696,6 +1699,19 @@
         "url": "https://opencollective.com/libvips"
       }
     },
+    "node_modules/@isaacs/fs-minipass": {
+      "version": "4.0.1",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/@isaacs/fs-minipass/-/fs-minipass-4.0.1.tgz",
+      "integrity": "sha512-wgm9Ehl2jpeqP3zw/7mo3kRHFp5MEDhqAdwy1fTGkHAwnkGOVsgpvQhL8B5n1qlb01jV3n/bI0ZfZp5lWA1k4w==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "minipass": "^7.0.4"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
     "node_modules/@jridgewell/gen-mapping": {
       "version": "0.3.13",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/@jridgewell/gen-mapping/-/gen-mapping-0.3.13.tgz",
@@ -2734,6 +2750,16 @@
       "dev": true,
       "license": "BSD-3-Clause"
     },
+    "node_modules/abbrev": {
+      "version": "4.0.0",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/abbrev/-/abbrev-4.0.0.tgz",
+      "integrity": "sha512-a1wflyaL0tHtJSmLSOVybYhy22vRih4eduhhrkcjgrWGnRfrZtovJ2FRjxuTtkkj47O/baf0R86QU5OuYpz8fA==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": "^20.17.0 || >=22.9.0"
+      }
+    },
     "node_modules/acorn": {
       "version": "8.18.0",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.18.0.tgz",
@@ -3348,6 +3374,16 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
+    "node_modules/chownr": {
+      "version": "3.0.0",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/chownr/-/chownr-3.0.0.tgz",
+      "integrity": "sha512-+IxzY9BZOQd/XuYPRmrvEVjF/nqj5kgT4kEq7VofrDoM1MxoRjEWkrCC3EtLi59TVawxTAn+orJwFQcrqEN1+g==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/client-only": {
       "version": "0.0.1",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/client-only/-/client-only-0.0.1.tgz",
@@ -3730,6 +3766,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/env-paths": {
+      "version": "2.2.1",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/env-paths/-/env-paths-2.2.1.tgz",
+      "integrity": "sha512-+h1lkLKhZMTYjog1VEpJNG7NZJWcuc2DDk/qsqSTRRCOXiLjeQ1d1/udrUGhqMxUgAlwKNZ0cf2uqan5GLuS2A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/es-abstract": {
       "version": "1.24.2",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/es-abstract/-/es-abstract-1.24.2.tgz",
@@ -4486,6 +4532,13 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/exponential-backoff": {
+      "version": "3.1.3",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/exponential-backoff/-/exponential-backoff-3.1.3.tgz",
+      "integrity": "sha512-ZgEeZXj30q+I0EN+CbSSpIyPaJ5HVQD18Z1m+u1FXbAeT94mr1zw50q4q6jiiC447Nl/YTcIYSAftiGqetwXCA==",
+      "dev": true,
+      "license": "Apache-2.0"
+    },
     "node_modules/fast-deep-equal": {
       "version": "3.1.3",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
@@ -4838,6 +4891,13 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/graceful-fs": {
+      "version": "4.2.11",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/graceful-fs/-/graceful-fs-4.2.11.tgz",
+      "integrity": "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==",
+      "dev": true,
+      "license": "ISC"
+    },
     "node_modules/has-bigints": {
       "version": "1.1.0",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/has-bigints/-/has-bigints-1.1.0.tgz",
@@ -5728,6 +5788,29 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/minipass": {
+      "version": "7.1.3",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/minipass/-/minipass-7.1.3.tgz",
+      "integrity": "sha512-tEBHqDnIoM/1rXME1zgka9g6Q2lcoCkxHLuc7ODJ5BxbP5d4c2Z5cGgtXAku59200Cx7diuHTOYfSBD8n6mm8A==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": ">=16 || 14 >=14.17"
+      }
+    },
+    "node_modules/minizlib": {
+      "version": "3.1.0",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/minizlib/-/minizlib-3.1.0.tgz",
+      "integrity": "sha512-KZxYo1BUkWD2TVFLr0MQoM8vUUigWD3LlD83a/75BqC+4qE0Hb1Vo5v1FgcfaNXvfXzr+5EhQ6ing/CaBijTlw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "minipass": "^7.1.2"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/ms/-/ms-2.1.3.tgz",
@@ -5882,6 +5965,57 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/node-gyp": {
+      "version": "12.4.0",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/node-gyp/-/node-gyp-12.4.0.tgz",
+      "integrity": "sha512-OMcPNvqTCFUnNaBlmdgq+lfNqY7gTiSmNRDjY3uAXRyudeKZEZxu3CLtjMQrx4zZxCX2b/mpNqTtwuCJgXhHkw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "env-paths": "^2.2.0",
+        "exponential-backoff": "^3.1.1",
+        "graceful-fs": "^4.2.6",
+        "nopt": "^9.0.0",
+        "proc-log": "^6.0.0",
+        "semver": "^7.3.5",
+        "tar": "^7.5.4",
+        "tinyglobby": "^0.2.12",
+        "undici": "^6.25.0",
+        "which": "^6.0.0"
+      },
+      "bin": {
+        "node-gyp": "bin/node-gyp.js"
+      },
+      "engines": {
+        "node": "^20.17.0 || >=22.9.0"
+      }
+    },
+    "node_modules/node-gyp/node_modules/isexe": {
+      "version": "4.0.0",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/isexe/-/isexe-4.0.0.tgz",
+      "integrity": "sha512-FFUtZMpoZ8RqHS3XeXEmHWLA4thH+ZxCv2lOiPIn1Xc7CxrqhWzNSDzD+/chS/zbYezmiwWLdQC09JdQKmthOw==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/node-gyp/node_modules/which": {
+      "version": "6.0.1",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/which/-/which-6.0.1.tgz",
+      "integrity": "sha512-oGLe46MIrCRqX7ytPUf66EAYvdeMIZYn3WaocqqKZAxrBpkqHfL/qvTyJ/bTk5+AqHCjXmrv3CEWgy368zhRUg==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "isexe": "^4.0.0"
+      },
+      "bin": {
+        "node-which": "bin/which.js"
+      },
+      "engines": {
+        "node": "^20.17.0 || >=22.9.0"
+      }
+    },
     "node_modules/node-releases": {
       "version": "2.0.54",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/node-releases/-/node-releases-2.0.54.tgz",
@@ -5892,6 +6026,22 @@
         "node": ">=18"
       }
     },
+    "node_modules/nopt": {
+      "version": "9.0.0",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/nopt/-/nopt-9.0.0.tgz",
+      "integrity": "sha512-Zhq3a+yFKrYwSBluL4H9XP3m3y5uvQkB/09CwDruCiRmR/UJYnn9W4R48ry0uGC70aeTPKLynBtscP9efFFcPw==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "abbrev": "^4.0.0"
+      },
+      "bin": {
+        "nopt": "bin/nopt.js"
+      },
+      "engines": {
+        "node": "^20.17.0 || >=22.9.0"
+      }
+    },
     "node_modules/object-assign": {
       "version": "4.1.1",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/object-assign/-/object-assign-4.1.1.tgz",
@@ -6220,6 +6370,16 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/proc-log": {
+      "version": "6.1.0",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/proc-log/-/proc-log-6.1.0.tgz",
+      "integrity": "sha512-iG+GYldRf2BQ0UDUAd6JQ/RwzaQy6mXmsk/IzlYyal4A4SNFw54MeH4/tLkF4I5WoWG9SQwuqWzS99jaFQHBuQ==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": "^20.17.0 || >=22.9.0"
+      }
+    },
     "node_modules/prop-types": {
       "version": "15.8.1",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/prop-types/-/prop-types-15.8.1.tgz",
@@ -6948,6 +7108,33 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/tar": {
+      "version": "7.5.22",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/tar/-/tar-7.5.22.tgz",
+      "integrity": "sha512-MFO/QzvtAOmJbkhOaCTvbGcFN9L9b+JunIsDwaKljSOdcLMea3NJ1k9Usz/rjdfSXTq4dfzfeS7W4p4YOAAHeA==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "dependencies": {
+        "@isaacs/fs-minipass": "^4.0.0",
+        "chownr": "^3.0.0",
+        "minipass": "^7.1.2",
+        "minizlib": "^3.1.0",
+        "yallist": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/tar/node_modules/yallist": {
+      "version": "5.0.0",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/yallist/-/yallist-5.0.0.tgz",
+      "integrity": "sha512-YgvUTfwqyc7UXVMrB+SImsVYSmTS8X/tSrtdNZMImM+n7+QTriRXyXim0mBrTXNeqzVF0KWGgHPeiyViFFrNDw==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/three": {
       "version": "0.180.0",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/three/-/three-0.180.0.tgz",
@@ -7227,6 +7414,16 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/undici": {
+      "version": "6.28.1",
+      "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/undici/-/undici-6.28.1.tgz",
+      "integrity": "sha512-zWpdTVD54H48CIybL0rWQ3ukpb9d23wM7eH5RtfdmeP70cWHNjtfo7P4vZX+5CoDcO53J4Pu5uXp7lNfjc6DRA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.17"
+      }
+    },
     "node_modules/undici-types": {
       "version": "6.21.0",
       "resolved": "https://package-mirror.liara.ir/artifactory/api/npm/npm/undici-types/-/undici-types-6.21.0.tgz",

package.json

@@ -16,7 +16,6 @@
     "maintenance": "tsx --env-file-if-exists=.env scripts/maintenance.ts"
   },
   "dependencies": {
-    "@img/sharp-wasm32": "0.35.4",
     "better-auth": "^1.7.5",
     "better-sqlite3": "^13.0.3",
     "drizzle-orm": "^0.45.2",
@@ -41,6 +40,8 @@
     "esbuild": "^0.28.2",
     "eslint": "^9.39.5",
     "eslint-config-next": "^16.3.4",
+    "node-addon-api": "8.9.2",
+    "node-gyp": "12.4.0",
     "tsx": "^4.23.13",
     "typescript": "^5.7.3"
   },

scripts/check-image-runtime.mjs

@@ -2,24 +2,19 @@ import { createRequire } from 'node:module';
 
 const require = createRequire(import.meta.url);
 
-// Check the fallback directly: Sharp 0.35.4 can hide its load error behind
-// an unrelated `err.code.endsWith` exception on unsupported native CPUs.
-try {
-  require('@img/sharp-wasm32/sharp.node');
-  console.log('Sharp WebAssembly binding loaded.');
-} catch (error) {
-  console.error('Sharp WebAssembly binding failed to load:', error);
-  process.exit(1);
-}
-
 try {
   const { default: sharp } = await import('sharp');
-  const input = await sharp({ create: { width: 8, height: 8, channels: 3, background: '#336699' } }).webp().toBuffer();
+  if (process.argv.includes('--require-source') && !Object.keys(require.cache).some(file => /sharp[/\\]src[/\\]build[/\\]Release[/\\].+\.node$/.test(file))) {
-  const metadata = await sharp(input).metadata();
+    throw new Error('Expected the source-built Sharp binding; refusing to use a prebuilt fallback');
-  if (metadata.format !== 'webp' || metadata.width !== 8 || metadata.height !== 8) {
-    throw new Error('Image encode/decode verification failed');
   }
-  console.log('Sharp ESM import and image processing passed.');
+  for (const format of ['jpeg', 'png', 'webp']) {
+    const input = await sharp({ create: { width: 8, height: 8, channels: 3, background: '#336699' } }).toFormat(format).toBuffer();
+    const metadata = await sharp(input).metadata();
+    if (metadata.format !== format || metadata.width !== 8 || metadata.height !== 8) {
+      throw new Error(`${format} encode/decode verification failed`);
+    }
+  }
+  console.log(`Sharp ${sharp.versions.sharp}, libvips ${sharp.versions.vips}: JPEG, PNG and WebP passed.`);
 } catch (error) {
   console.error('Sharp image runtime failed:', error);
   process.exit(1);

tests/sharp-fallback.test.mjs

@@ -1,26 +0,0 @@
-import assert from 'node:assert/strict';
-import { spawnSync } from 'node:child_process';
-import test from 'node:test';
-
-test('image processing falls back to WebAssembly without native CPU support', () => {
-  // Isolate the native-binding simulation from the rest of the test process.
-  const result = spawnSync(process.execPath, ['-e', `
-    const Module = require('node:module');
-    const original = Module._load;
-    Module._load = function (id, ...args) {
-      if (id.endsWith('.node') && !id.includes('wasm32')) {
-        const error = new Error('Simulated unavailable native binding');
-        error.code = 'MODULE_NOT_FOUND';
-        throw error;
-      }
-      return original.call(this, id, ...args);
-    };
-    const sharp = require('sharp');
-    (async () => {
-      const image = await sharp({ create: { width: 8, height: 8, channels: 3, background: '#336699' } }).webp().toBuffer();
-      const metadata = await sharp(image).metadata();
-      if (metadata.format !== 'webp' || metadata.width !== 8 || metadata.height !== 8) throw new Error('Image round trip failed');
-    })().catch(error => { console.error(error); process.exitCode = 1; });
-  `], { encoding: 'utf8', timeout: 30000 });
-  assert.equal(result.status, 0, result.stderr || result.error?.message);
-});