From 7ef498be6d2945d680a79f3bc0b50eeeee0d950e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adam=20Zieli=C5=84ski?= <adam@adamziel.com>
Date: Mon, 4 May 2026 23:35:38 +0200
Subject: [PATCH 1/4] Parallelize WASM extension builds

---
 .../publish-wasm-extension-artifact.yml       |  7 ++++-
 .github/workflows/wasm-spike.yml              |  7 ++++-
 .../wasm-spike/build-in-docker-rust.sh        | 31 ++++++++++++++++---
 3 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/publish-wasm-extension-artifact.yml b/.github/workflows/publish-wasm-extension-artifact.yml
index 57560100..3900ff40 100644
--- a/.github/workflows/publish-wasm-extension-artifact.yml
+++ b/.github/workflows/publish-wasm-extension-artifact.yml
@@ -32,7 +32,7 @@ jobs:
     timeout-minutes: 45
     strategy:
       fail-fast: false
-      max-parallel: 1
+      max-parallel: 6
       matrix:
         # The Rust WASM path uses ext-php-rs 0.15, which depends on PHP 8
         # Zend APIs. PHP 7.4 cannot be added here by extending the matrix.
@@ -83,6 +83,9 @@ jobs:
           cache: 'npm'
           cache-dependency-path: wordpress-playground/package-lock.json
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Install Playground deps
         working-directory: wordpress-playground
         run: npm ci --ignore-scripts
@@ -93,6 +96,8 @@ jobs:
           PHP_VERSION: ${{ matrix.php }}
           ASYNC_MODE: jspi
           COMPILE_EXTENSION_PACKAGE: '@php-wasm/compile-extension@3.1.27'
+          DOCKER_BUILD_CACHE: gha
+          DOCKER_BUILD_CACHE_SCOPE_PREFIX: wp-mysql-parser-wasm
           PLAYGROUND_REPO: ${{ github.workspace }}/wordpress-playground
         run: bash build-in-docker-rust.sh
 
diff --git a/.github/workflows/wasm-spike.yml b/.github/workflows/wasm-spike.yml
index 39acf065..25c108c2 100644
--- a/.github/workflows/wasm-spike.yml
+++ b/.github/workflows/wasm-spike.yml
@@ -25,7 +25,7 @@ jobs:
     timeout-minutes: 45
     strategy:
       fail-fast: false
-      max-parallel: 1
+      max-parallel: 6
       matrix:
         # The Rust WASM path uses ext-php-rs 0.15, which depends on PHP 8
         # Zend APIs. PHP 7.4 cannot be added here by extending the matrix.
@@ -77,6 +77,9 @@ jobs:
           cache: 'npm'
           cache-dependency-path: wordpress-playground/package-lock.json
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Install Playground deps
         working-directory: wordpress-playground
         run: npm ci --ignore-scripts
@@ -87,6 +90,8 @@ jobs:
           PHP_VERSION: ${{ matrix.php }}
           ASYNC_MODE: ${{ matrix.async-mode }}
           COMPILE_EXTENSION_PACKAGE: '@php-wasm/compile-extension@3.1.27'
+          DOCKER_BUILD_CACHE: gha
+          DOCKER_BUILD_CACHE_SCOPE_PREFIX: wp-mysql-parser-wasm
           PLAYGROUND_REPO: ${{ github.workspace }}/wordpress-playground
         run: bash build-in-docker-rust.sh
 
diff --git a/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh b/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
index e7b13afa..8bccf466 100755
--- a/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
+++ b/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
@@ -56,19 +56,40 @@ fi
 
 RUST_IMAGE="playground-php-wasm-ext-rust:${PHP_VERSION}-${ASYNC_MODE}"
 BASE_IMAGE="playground-php-wasm:compile-extension-php${PHP_VERSION//./-}-${ASYNC_MODE}"
+DOCKER_BUILD_CACHE="${DOCKER_BUILD_CACHE:-}"
+DOCKER_BUILD_CACHE_SCOPE_PREFIX="${DOCKER_BUILD_CACHE_SCOPE_PREFIX:-wp-mysql-parser-wasm}"
+
+docker_build() {
+  local cache_scope="$1"
+  shift
+
+  if [ "$DOCKER_BUILD_CACHE" = "gha" ]; then
+    docker buildx build --load \
+      --cache-from "type=gha,scope=${DOCKER_BUILD_CACHE_SCOPE_PREFIX}-${cache_scope}" \
+      --cache-to "type=gha,mode=max,scope=${DOCKER_BUILD_CACHE_SCOPE_PREFIX}-${cache_scope}" \
+      "$@"
+    return
+  fi
+
+  docker build "$@"
+}
 
 echo "==> Stage 0: preparing $BASE_IMAGE via Playground compile-extension tooling"
-make -C "$PLAYGROUND_REPO/packages/php-wasm/compile" base-image
-docker build \
+BASE_IMAGE_DIR="$PLAYGROUND_REPO/packages/php-wasm/compile/base-image"
+docker_build "base-image" \
+  -f "$BASE_IMAGE_DIR/Dockerfile" \
+  --tag="playground-php-wasm:base" \
+  "$BASE_IMAGE_DIR"
+docker_build "compile-extension-php${PHP_VERSION//./-}-${ASYNC_MODE}" \
   -f "$PLAYGROUND_REPO/packages/php-wasm/compile-extension/docker/Dockerfile.ext" \
-  "$PLAYGROUND_REPO/packages/php-wasm" \
   --tag="$BASE_IMAGE" \
   --progress=plain \
   --build-arg "PHP_VERSION=$PHP_RELEASE" \
-  --build-arg "JSPI=yes"
+  --build-arg "JSPI=yes" \
+  "$PLAYGROUND_REPO/packages/php-wasm"
 
 echo "==> Stage 0: building $RUST_IMAGE"
-docker build \
+docker_build "rust-php${PHP_VERSION//./-}-${ASYNC_MODE}" \
   --build-arg "BASE_IMAGE=$BASE_IMAGE" \
   --build-arg "HOST_PHP_VERSION=$PHP_VERSION" \
   --build-arg "HOST_PHP_API_VERSION=$PHP_API_VERSION" \

From 27269d7994c32806ec91207bb19798e5a271de4c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adam=20Zieli=C5=84ski?= <adam@adamziel.com>
Date: Mon, 4 May 2026 23:54:01 +0200
Subject: [PATCH 2/4] Keep WASM parallel builds on plain Docker

---
 .../publish-wasm-extension-artifact.yml       |  5 ----
 .github/workflows/wasm-spike.yml              |  5 ----
 .../wasm-spike/build-in-docker-rust.sh        | 23 +++----------------
 3 files changed, 3 insertions(+), 30 deletions(-)

diff --git a/.github/workflows/publish-wasm-extension-artifact.yml b/.github/workflows/publish-wasm-extension-artifact.yml
index 3900ff40..b381e970 100644
--- a/.github/workflows/publish-wasm-extension-artifact.yml
+++ b/.github/workflows/publish-wasm-extension-artifact.yml
@@ -83,9 +83,6 @@ jobs:
           cache: 'npm'
           cache-dependency-path: wordpress-playground/package-lock.json
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Install Playground deps
         working-directory: wordpress-playground
         run: npm ci --ignore-scripts
@@ -96,8 +93,6 @@ jobs:
           PHP_VERSION: ${{ matrix.php }}
           ASYNC_MODE: jspi
           COMPILE_EXTENSION_PACKAGE: '@php-wasm/compile-extension@3.1.27'
-          DOCKER_BUILD_CACHE: gha
-          DOCKER_BUILD_CACHE_SCOPE_PREFIX: wp-mysql-parser-wasm
           PLAYGROUND_REPO: ${{ github.workspace }}/wordpress-playground
         run: bash build-in-docker-rust.sh
 
diff --git a/.github/workflows/wasm-spike.yml b/.github/workflows/wasm-spike.yml
index 25c108c2..f95f48fa 100644
--- a/.github/workflows/wasm-spike.yml
+++ b/.github/workflows/wasm-spike.yml
@@ -77,9 +77,6 @@ jobs:
           cache: 'npm'
           cache-dependency-path: wordpress-playground/package-lock.json
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Install Playground deps
         working-directory: wordpress-playground
         run: npm ci --ignore-scripts
@@ -90,8 +87,6 @@ jobs:
           PHP_VERSION: ${{ matrix.php }}
           ASYNC_MODE: ${{ matrix.async-mode }}
           COMPILE_EXTENSION_PACKAGE: '@php-wasm/compile-extension@3.1.27'
-          DOCKER_BUILD_CACHE: gha
-          DOCKER_BUILD_CACHE_SCOPE_PREFIX: wp-mysql-parser-wasm
           PLAYGROUND_REPO: ${{ github.workspace }}/wordpress-playground
         run: bash build-in-docker-rust.sh
 
diff --git a/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh b/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
index 8bccf466..4e984722 100755
--- a/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
+++ b/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
@@ -56,31 +56,14 @@ fi
 
 RUST_IMAGE="playground-php-wasm-ext-rust:${PHP_VERSION}-${ASYNC_MODE}"
 BASE_IMAGE="playground-php-wasm:compile-extension-php${PHP_VERSION//./-}-${ASYNC_MODE}"
-DOCKER_BUILD_CACHE="${DOCKER_BUILD_CACHE:-}"
-DOCKER_BUILD_CACHE_SCOPE_PREFIX="${DOCKER_BUILD_CACHE_SCOPE_PREFIX:-wp-mysql-parser-wasm}"
-
-docker_build() {
-  local cache_scope="$1"
-  shift
-
-  if [ "$DOCKER_BUILD_CACHE" = "gha" ]; then
-    docker buildx build --load \
-      --cache-from "type=gha,scope=${DOCKER_BUILD_CACHE_SCOPE_PREFIX}-${cache_scope}" \
-      --cache-to "type=gha,mode=max,scope=${DOCKER_BUILD_CACHE_SCOPE_PREFIX}-${cache_scope}" \
-      "$@"
-    return
-  fi
-
-  docker build "$@"
-}
 
 echo "==> Stage 0: preparing $BASE_IMAGE via Playground compile-extension tooling"
 BASE_IMAGE_DIR="$PLAYGROUND_REPO/packages/php-wasm/compile/base-image"
-docker_build "base-image" \
+docker build \
   -f "$BASE_IMAGE_DIR/Dockerfile" \
   --tag="playground-php-wasm:base" \
   "$BASE_IMAGE_DIR"
-docker_build "compile-extension-php${PHP_VERSION//./-}-${ASYNC_MODE}" \
+docker build \
   -f "$PLAYGROUND_REPO/packages/php-wasm/compile-extension/docker/Dockerfile.ext" \
   --tag="$BASE_IMAGE" \
   --progress=plain \
@@ -89,7 +72,7 @@ docker_build "compile-extension-php${PHP_VERSION//./-}-${ASYNC_MODE}" \
   "$PLAYGROUND_REPO/packages/php-wasm"
 
 echo "==> Stage 0: building $RUST_IMAGE"
-docker_build "rust-php${PHP_VERSION//./-}-${ASYNC_MODE}" \
+docker build \
   --build-arg "BASE_IMAGE=$BASE_IMAGE" \
   --build-arg "HOST_PHP_VERSION=$PHP_VERSION" \
   --build-arg "HOST_PHP_API_VERSION=$PHP_API_VERSION" \

From fdd151faba7c1e849b0b5300d2c09f8c9944fd32 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adam=20Zieli=C5=84ski?= <adam@adamziel.com>
Date: Tue, 5 May 2026 00:07:30 +0200
Subject: [PATCH 3/4] Share WASM base image across PHP builds

---
 .../publish-wasm-extension-artifact.yml       | 44 +++++++++++++++++++
 .github/workflows/wasm-spike.yml              | 44 +++++++++++++++++++
 .../wasm-spike/build-in-docker-rust.sh        | 18 +++++---
 3 files changed, 101 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/publish-wasm-extension-artifact.yml b/.github/workflows/publish-wasm-extension-artifact.yml
index b381e970..69fff8b2 100644
--- a/.github/workflows/publish-wasm-extension-artifact.yml
+++ b/.github/workflows/publish-wasm-extension-artifact.yml
@@ -26,8 +26,42 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  base-image:
+    name: Build shared Playground base image
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+
+    steps:
+      - name: Check out wordpress-playground
+        uses: actions/checkout@v4
+        with:
+          repository: WordPress/wordpress-playground
+          ref: ${{ github.event.inputs.playground-ref || 'trunk' }}
+          path: wordpress-playground
+          sparse-checkout: |
+            packages/php-wasm/compile/base-image
+
+      - name: Build Playground base image
+        run: |
+          docker build \
+            -f wordpress-playground/packages/php-wasm/compile/base-image/Dockerfile \
+            --tag playground-php-wasm:base \
+            wordpress-playground/packages/php-wasm/compile/base-image
+
+      - name: Save Playground base image
+        run: docker save --output "${RUNNER_TEMP}/playground-php-wasm-base.tar" playground-php-wasm:base
+
+      - name: Upload Playground base image
+        uses: actions/upload-artifact@v4
+        with:
+          name: playground-php-wasm-base-image
+          path: ${{ runner.temp }}/playground-php-wasm-base.tar
+          if-no-files-found: error
+          retention-days: 1
+
   build:
     name: Build wp_mysql_parser.so (PHP ${{ matrix.php }})
+    needs: base-image
     runs-on: ubuntu-latest
     timeout-minutes: 45
     strategy:
@@ -83,6 +117,15 @@ jobs:
           cache: 'npm'
           cache-dependency-path: wordpress-playground/package-lock.json
 
+      - name: Download Playground base image
+        uses: actions/download-artifact@v4
+        with:
+          name: playground-php-wasm-base-image
+          path: ${{ runner.temp }}/playground-base-image
+
+      - name: Load Playground base image
+        run: docker load --input "${RUNNER_TEMP}/playground-base-image/playground-php-wasm-base.tar"
+
       - name: Install Playground deps
         working-directory: wordpress-playground
         run: npm ci --ignore-scripts
@@ -94,6 +137,7 @@ jobs:
           ASYNC_MODE: jspi
           COMPILE_EXTENSION_PACKAGE: '@php-wasm/compile-extension@3.1.27'
           PLAYGROUND_REPO: ${{ github.workspace }}/wordpress-playground
+          SKIP_BASE_IMAGE_BUILD: '1'
         run: bash build-in-docker-rust.sh
 
       - name: Verify side module exists
diff --git a/.github/workflows/wasm-spike.yml b/.github/workflows/wasm-spike.yml
index f95f48fa..ffaf6a8f 100644
--- a/.github/workflows/wasm-spike.yml
+++ b/.github/workflows/wasm-spike.yml
@@ -19,8 +19,42 @@ on:
         default: 'trunk'
 
 jobs:
+  base-image:
+    name: Build shared Playground base image
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+
+    steps:
+      - name: Check out wordpress-playground
+        uses: actions/checkout@v4
+        with:
+          repository: WordPress/wordpress-playground
+          ref: ${{ github.event.inputs.playground-ref || 'trunk' }}
+          path: wordpress-playground
+          sparse-checkout: |
+            packages/php-wasm/compile/base-image
+
+      - name: Build Playground base image
+        run: |
+          docker build \
+            -f wordpress-playground/packages/php-wasm/compile/base-image/Dockerfile \
+            --tag playground-php-wasm:base \
+            wordpress-playground/packages/php-wasm/compile/base-image
+
+      - name: Save Playground base image
+        run: docker save --output "${RUNNER_TEMP}/playground-php-wasm-base.tar" playground-php-wasm:base
+
+      - name: Upload Playground base image
+        uses: actions/upload-artifact@v4
+        with:
+          name: playground-php-wasm-base-image
+          path: ${{ runner.temp }}/playground-php-wasm-base.tar
+          if-no-files-found: error
+          retention-days: 1
+
   build-and-load:
     name: Build wp_mysql_parser.so and load it in Playground (PHP ${{ matrix.php }})
+    needs: base-image
     runs-on: ubuntu-latest
     timeout-minutes: 45
     strategy:
@@ -77,6 +111,15 @@ jobs:
           cache: 'npm'
           cache-dependency-path: wordpress-playground/package-lock.json
 
+      - name: Download Playground base image
+        uses: actions/download-artifact@v4
+        with:
+          name: playground-php-wasm-base-image
+          path: ${{ runner.temp }}/playground-base-image
+
+      - name: Load Playground base image
+        run: docker load --input "${RUNNER_TEMP}/playground-base-image/playground-php-wasm-base.tar"
+
       - name: Install Playground deps
         working-directory: wordpress-playground
         run: npm ci --ignore-scripts
@@ -88,6 +131,7 @@ jobs:
           ASYNC_MODE: ${{ matrix.async-mode }}
           COMPILE_EXTENSION_PACKAGE: '@php-wasm/compile-extension@3.1.27'
           PLAYGROUND_REPO: ${{ github.workspace }}/wordpress-playground
+          SKIP_BASE_IMAGE_BUILD: '1'
         run: bash build-in-docker-rust.sh
 
       - name: Verify build artifacts exist
diff --git a/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh b/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
index 4e984722..11bb527f 100755
--- a/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
+++ b/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
@@ -58,11 +58,19 @@ RUST_IMAGE="playground-php-wasm-ext-rust:${PHP_VERSION}-${ASYNC_MODE}"
 BASE_IMAGE="playground-php-wasm:compile-extension-php${PHP_VERSION//./-}-${ASYNC_MODE}"
 
 echo "==> Stage 0: preparing $BASE_IMAGE via Playground compile-extension tooling"
-BASE_IMAGE_DIR="$PLAYGROUND_REPO/packages/php-wasm/compile/base-image"
-docker build \
-  -f "$BASE_IMAGE_DIR/Dockerfile" \
-  --tag="playground-php-wasm:base" \
-  "$BASE_IMAGE_DIR"
+if [ "${SKIP_BASE_IMAGE_BUILD:-}" = "1" ]; then
+  if ! docker image inspect playground-php-wasm:base >/dev/null 2>&1; then
+    echo "SKIP_BASE_IMAGE_BUILD=1 requires a preloaded playground-php-wasm:base image." >&2
+    exit 1
+  fi
+  echo "==> Stage 0: using preloaded playground-php-wasm:base"
+else
+  BASE_IMAGE_DIR="$PLAYGROUND_REPO/packages/php-wasm/compile/base-image"
+  docker build \
+    -f "$BASE_IMAGE_DIR/Dockerfile" \
+    --tag="playground-php-wasm:base" \
+    "$BASE_IMAGE_DIR"
+fi
 docker build \
   -f "$PLAYGROUND_REPO/packages/php-wasm/compile-extension/docker/Dockerfile.ext" \
   --tag="$BASE_IMAGE" \

From 5f168dee979fd9197a5fdaaa72724ed9044e8435 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adam=20Zieli=C5=84ski?= <adam@adamziel.com>
Date: Tue, 5 May 2026 01:09:35 +0200
Subject: [PATCH 4/4] Reuse prepared compile-extension images

---
 .../wasm-spike/build-in-docker-rust.sh        | 39 ++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh b/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
index 11bb527f..f18d0e39 100755
--- a/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
+++ b/packages/php-ext-wp-mysql-parser/wasm-spike/build-in-docker-rust.sh
@@ -54,6 +54,42 @@ if [ -z "$PLAYGROUND_REPO" ] || [ ! -f "$PLAYGROUND_REPO/packages/php-wasm/compi
   exit 1
 fi
 
+patch_compile_extension_cli() {
+  local cli_path="$1"
+
+  # The npm CLI currently rebuilds the Docker images itself. This script has
+  # already prepared those exact images in Stage 0, so patch the pinned CLI to
+  # reuse them and fail loudly if the installed package changes shape.
+  node --input-type=module - "$cli_path" <<'NODE'
+import { readFileSync, writeFileSync } from 'node:fs';
+
+const cliPath = process.argv[2];
+let source = readFileSync(cliPath, 'utf8');
+
+const replacements = [
+  [
+    'async function k(e){await p("make",["base-image"],{cwd:e.compileRoot})}',
+    'async function k(e){if(process.env.COMPILE_EXTENSION_SKIP_IMAGE_BUILD==="1"){await p("docker",["image","inspect","playground-php-wasm:base"],{stdio:"ignore"});console.log("Skipping compile-extension base image build; using existing playground-php-wasm:base");return}await p("make",["base-image"],{cwd:e.compileRoot})}',
+  ],
+  [
+    'async function j(e){const t=$(e);return await p("docker",["build","-f","compile-extension/docker/Dockerfile.ext",".",`--tag=${t}`,"--progress=plain","--build-arg",`PHP_VERSION=${e.phpRelease}`,"--build-arg","JSPI=yes"],{cwd:e.phpWasmRoot}),t}',
+    'async function j(e){const t=$(e);if(process.env.COMPILE_EXTENSION_SKIP_IMAGE_BUILD==="1"){await p("docker",["image","inspect",t],{stdio:"ignore"});console.log(`Skipping compile-extension image build; using existing ${t}`);return t}return await p("docker",["build","-f","compile-extension/docker/Dockerfile.ext",".",`--tag=${t}`,"--progress=plain","--build-arg",`PHP_VERSION=${e.phpRelease}`,"--build-arg","JSPI=yes"],{cwd:e.phpWasmRoot}),t}',
+  ],
+];
+
+for (const [from, to] of replacements) {
+  if (!source.includes(from)) {
+    throw new Error(`Unable to patch @php-wasm/compile-extension CLI. Missing pattern: ${from}`);
+  }
+  source = source.replace(from, to);
+}
+
+writeFileSync(cliPath, source);
+NODE
+
+  grep -q 'COMPILE_EXTENSION_SKIP_IMAGE_BUILD' "$cli_path"
+}
+
 RUST_IMAGE="playground-php-wasm-ext-rust:${PHP_VERSION}-${ASYNC_MODE}"
 BASE_IMAGE="playground-php-wasm:compile-extension-php${PHP_VERSION//./-}-${ASYNC_MODE}"
 
@@ -275,10 +311,11 @@ ARTIFACT="wp_mysql_parser-php${PHP_VERSION}-${ASYNC_MODE}.so"
 COMPILE_EXTENSION_CLI="$CLI_STAGE/node_modules/@php-wasm/compile-extension/cli.js"
 
 npm install --prefix "$CLI_STAGE" --no-audit --no-fund --ignore-scripts "$COMPILE_EXTENSION_PACKAGE"
+patch_compile_extension_cli "$COMPILE_EXTENSION_CLI"
 
 (
   cd "$PLAYGROUND_REPO"
-  node "$COMPILE_EXTENSION_CLI" \
+  COMPILE_EXTENSION_SKIP_IMAGE_BUILD=1 node "$COMPILE_EXTENSION_CLI" \
     --source "$SRC_STAGE" \
     --name wp_mysql_parser \
     --php-versions "$PHP_VERSION" \