diff --git a/demo-www/index.js b/demo-www/index.js
index 549bc56..98ac117 100644
--- a/demo-www/index.js
+++ b/demo-www/index.js
@@ -1,3 +1,3 @@
-import * as wasm from "hello-wasm-pack";
+import * as wasm from 'zcash-client-sdk'
 
 wasm.greet();
diff --git a/demo-www/package-lock.json b/demo-www/package-lock.json
index 96aaa14..05cfd9a 100644
--- a/demo-www/package-lock.json
+++ b/demo-www/package-lock.json
@@ -2121,7 +2121,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -2142,12 +2143,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -2162,17 +2165,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2289,7 +2295,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2301,6 +2308,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -2315,6 +2323,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -2322,12 +2331,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -2346,6 +2357,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2433,7 +2445,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2445,6 +2458,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -2530,7 +2544,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2566,6 +2581,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -2585,6 +2601,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2628,12 +2645,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -2805,12 +2824,6 @@
         "minimalistic-assert": "^1.0.1"
       }
     },
-    "hello-wasm-pack": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/hello-wasm-pack/-/hello-wasm-pack-0.1.0.tgz",
-      "integrity": "sha512-3hx0GDkDLf/a9ThCMV2qG4mwza8N/MCtm8aeFFc/cdBCL2zMJ1kW1wjNl7xPqD1lz8Yl5+uhnc/cpui4dLwz/w==",
-      "dev": true
-    },
     "hmac-drbg": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
@@ -5736,6 +5749,13 @@
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
       }
+    },
+    "zcash-client-sdk": {
+      "version": "file:../zcash-client-sdk-js",
+      "dev": true,
+      "requires": {
+        "zcash-client-backend-wasm": "file:../zcash-client-backend-wasm/pkg"
+      }
     }
   }
 }
diff --git a/demo-www/package.json b/demo-www/package.json
index 466eb4b..7b96631 100644
--- a/demo-www/package.json
+++ b/demo-www/package.json
@@ -28,9 +28,9 @@
   "homepage": "https://github.com/rustwasm/create-wasm-app#readme",
   "devDependencies": {
     "copy-webpack-plugin": "^5.0.0",
-    "hello-wasm-pack": "^0.1.0",
     "webpack": "^4.29.3",
     "webpack-cli": "^3.1.0",
-    "webpack-dev-server": "^3.1.5"
+    "webpack-dev-server": "^3.1.5",
+    "zcash-client-sdk": "file:../zcash-client-sdk-js"
   }
 }