diff --git a/.github/scripts/clean.js b/.github/scripts/clean.js
new file mode 100644
index 0000000000..e6909bd9f8
--- /dev/null
+++ b/.github/scripts/clean.js
@@ -0,0 +1,63 @@
+// NOTE: this file can't use any NPM dependencies because it needs to run even if dependencies aren't installed yet or are corrupted
+const {execSync} = require('child_process');
+
+const isDevContainer = process.env.DEVCONTAINER === 'true';
+
+cleanYarnCache();
+resetNxCache();
+deleteNodeModules();
+deleteBuildArtifacts();
+console.log('Cleanup complete!');
+
+function deleteBuildArtifacts() {
+    console.log('Deleting all build artifacts...');
+    try {
+        execSync('find ./ghost -type d -name "build" -exec rm -rf \'{}\' +', {
+            stdio: 'inherit'
+        });
+        execSync('find ./ghost -type f -name "tsconfig.tsbuildinfo" -delete', {
+            stdio: 'inherit'
+        });
+    } catch (error) {
+        console.error('Failed to delete build artifacts:', error);
+        process.exit(1);
+    }
+}
+
+function deleteNodeModules() {
+    console.log('Deleting all node_modules directories...');
+    try {
+        execSync('find . -name "node_modules" -type d -prune -exec rm -rf \'{}\' +', {
+            stdio: 'inherit'
+        });
+    } catch (error) {
+        console.error('Failed to delete node_modules directories:', error);
+        process.exit(1);
+    }
+}
+
+function resetNxCache() {
+    console.log('Resetting NX cache...');
+    try {
+        execSync('rm -rf .nxcache .nx');
+    } catch (error) {
+        console.error('Failed to reset NX cache:', error);
+        process.exit(1);
+    }
+}
+
+function cleanYarnCache() {
+    console.log('Cleaning yarn cache...');
+    try {
+        if (isDevContainer) {
+            // In devcontainer, these directories are mounted from the host so we can't delete them — `yarn cache clean` will fail
+            // so we delete the contents of the directories instead
+            execSync('rm -rf .yarncache/* .yarncachecopy/*');
+        } else {
+            execSync('yarn cache clean');
+        }
+    } catch (error) {
+        console.error('Failed to clean yarn cache:', error);
+        process.exit(1);
+    }
+}
diff --git a/.github/scripts/clean.sh b/.github/scripts/clean.sh
deleted file mode 100755
index 87b17f7483..0000000000
--- a/.github/scripts/clean.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/bash
-
-set -e
-
-# Clean yarn cache
-echo "Cleaning yarn cache..."
-if [ "$DEVCONTAINER" = "true" ]; then
-    # In devcontainer, these directories are mounted from the host so we can't delete them — only their contents
-    rm -rf .yarncache/* .yarncachecopy/*
-else
-    yarn cache clean
-fi
-
-# Reset Nx
-echo "Resetting NX cache..."
-rm -rf .nxcache .nx
-
-# Recursively delete all node_modules directories
-echo "Deleting all node_modules directories..."
-find . -name "node_modules" -type d -prune -exec rm -rf '{}' +
-
-echo "Deleting all build artifacts..."
-find ./ghost -type d -name "build" -exec rm -rf '{}' +
-find ./ghost -type f -name "tsconfig.tsbuildinfo" -delete
-
-echo "Cleanup complete!"
diff --git a/package.json b/package.json
index 83461cef6b..7853226724 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "archive": "nx run ghost:archive",
     "build": "nx run-many -t build",
     "build:clean": "nx reset && rimraf -g 'ghost/*/build' && rimraf -g 'ghost/*/tsconfig.tsbuildinfo'",
-    "clean:hard": "./.github/scripts/clean.sh",
+    "clean:hard": "node ./.github/scripts/clean.js",
     "dev:debug": "DEBUG_COLORS=true DEBUG=@tryghost*,ghost:* yarn dev",
     "dev:admin": "node .github/scripts/dev.js --admin",
     "dev:ghost": "node .github/scripts/dev.js --ghost",