diff --git a/package.json b/package.json
index 4c40fcae0f2..b6a60188ce6 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,9 @@
     "lint:inspect": "pnpx @eslint/config-inspector@latest",
     "lint:packages": "FORCE_COLOR=1 turbo lint",
     "lint:publint": "FORCE_COLOR=1 turbo lint:publint",
+    "local:registry:down": "./scripts/local-registry.sh down",
+    "local:registry:pub": "./scripts/local-registry.sh pub",
+    "local:registry:up": "./scripts/local-registry.sh up",
     "nuke": "node ./scripts/nuke.mjs",
     "prepare": "husky install",
     "release": "changeset publish && git push --follow-tags",
diff --git a/scripts/local-registry.sh b/scripts/local-registry.sh
new file mode 100755
index 00000000000..e07623012fd
--- /dev/null
+++ b/scripts/local-registry.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+
+# Local Verdaccio Registry Script
+# Usage: ./scripts/local-registry.sh [up|down|pub]
+
+set -e
+
+REGISTRY_URL="http://localhost:4873"
+
+case "$1" in
+  up)
+    echo ""
+    echo "📦 Local Verdaccio Registry"
+    echo "==========================="
+    echo "Registry running at: $REGISTRY_URL"
+    echo ""
+    echo "To install packages in your test app:"
+    echo "  1. Update package.json catalog: \"@clerk/backend\": \"local\""
+    echo "  2. Run: bun install --registry $REGISTRY_URL"
+    echo ""
+    echo "To stop: pnpm local:registry:down"
+    echo ""
+    verdaccio --config verdaccio.install.yaml --listen 4873
+    ;;
+
+  down)
+    pkill -f 'verdaccio.*4873' && echo "Verdaccio stopped" || echo "Verdaccio not running"
+    ;;
+
+  pub)
+    # Ensure git changes are restored on exit (success or failure)
+    cleanup() {
+      git checkout -- 'packages/*/package.json' '.changeset/' 2>/dev/null || true
+    }
+    trap cleanup EXIT
+
+    # Restore any dirty package.json files first (from previous failed runs)
+    # so turbo cache can be used
+    cleanup
+
+    # Build all packages FIRST (uses turbo cache)
+    # This must happen before versioning, otherwise the package.json
+    # changes invalidate the turbo cache (package.json is in globalDependencies)
+    pnpm build
+
+    # Clear existing @clerk packages from Verdaccio storage to force republish
+    rm -rf .verdaccio/storage/@clerk
+
+    # Version packages with snapshot (uses snapshot.mjs which pins workspace deps
+    # to exact versions, preventing semver issues with prereleases)
+    pnpm version-packages:snapshot local
+
+    # Publish to Verdaccio using environment variable
+    npm_config_registry=$REGISTRY_URL pnpm changeset publish --no-git-tag --tag local
+
+    echo ""
+    echo "✅ Published to local Verdaccio"
+    echo "   Install with: bun install --registry $REGISTRY_URL"
+    ;;
+
+  *)
+    echo "Usage: $0 [up|down|pub]"
+    echo ""
+    echo "  up   - Start Verdaccio registry"
+    echo "  down - Stop Verdaccio registry"
+    echo "  pub  - Build and publish all packages"
+    echo ""
+    echo "Examples:"
+    echo "  $0 up"
+    echo "  $0 pub"
+    exit 1
+    ;;
+esac
diff --git a/verdaccio.install.yaml b/verdaccio.install.yaml
index e82793e0afe..2b77595e6e5 100644
--- a/verdaccio.install.yaml
+++ b/verdaccio.install.yaml
@@ -15,4 +15,4 @@ packages:
     publish: $all
     proxy: npmjs
 log: { type: stdout, format: pretty, level: http }
-max_body_size: 20mb
+max_body_size: 200mb