diff --git a/cart/as/README.md b/cart/as/README.md
index 4040be8..a472bad 100644
--- a/cart/as/README.md
+++ b/cart/as/README.md
@@ -1,5 +1,7 @@
 This is an example null0 cart written in [assemblyscript](https://www.assemblyscript.org/).
 
+You can make your own by editing files in [src/](src). `npm run build` will build your cart in `build/`. Change the package-name in package.json to change the name of the cart.
+
 ## TODO
 
-- look into [better build](https://github.com/notnullgames/null0-ideas/blob/main/projects/assemblyscript/tools/build.mjs)
+- look into [better cross-plaform build](https://github.com/notnullgames/null0-ideas/blob/main/projects/assemblyscript/tools/build.mjs)
diff --git a/cart/as/asconfig.json b/cart/as/asconfig.json
deleted file mode 100644
index b72c80b..0000000
--- a/cart/as/asconfig.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "targets": {
-    "release": {
-      "outFile": "build/main.wasm",
-      "textFile": "build/main.wat",
-      "sourceMap": true,
-      "optimizeLevel": 3,
-      "shrinkLevel": 0,
-      "converge": false,
-      "noAssert": false
-    }
-  },
-  "options": {
-    "bindings": "esm"
-  }
-}
diff --git a/cart/as/null0.ts b/cart/as/null0.ts
index 4fea8ba..6f93cd4 100644
--- a/cart/as/null0.ts
+++ b/cart/as/null0.ts
@@ -1,22 +1,2 @@
 // include this in your null0 cart
-// asc src/index.ts  --target release --use trace=_null0_trace --use abort=_null0_abort --use seed=_null0_seed --lib ./null0.ts
-
-// log a string
-@external("null0", "trace")
-declare function _null0_real_trace(text: ArrayBuffer): void
-
-// these are called by language
-// https://www.assemblyscript.org/concepts.html#special-imports
-// TODO: would WASI help with these?
-
-export function _null0_trace(message: String): void {
-  _null0_real_trace(String.UTF8.encode(message, true));
-}
-
-export function _null0_abort(message: String, fileName: String, line: u32, column: u32): void {
-  _null0_real_trace(String.UTF8.encode("ABORT: " + message, true));
-}
-
-export function _null0_seed(): f64 {
-  return 1.0;
-}
+// asc --config ./node_modules/@assemblyscript/wasi-shim/asconfig.json --lib ./null0.ts src/main.ts
diff --git a/cart/as/package-lock.json b/cart/as/package-lock.json
index eddbf24..a3c4f00 100644
--- a/cart/as/package-lock.json
+++ b/cart/as/package-lock.json
@@ -1,17 +1,29 @@
 {
-  "name": "@null0/example-as",
+  "name": "example-as",
   "version": "0.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
-      "name": "@null0/example-as",
+      "name": "example-as",
       "version": "0.0.0",
       "license": "MIT",
       "devDependencies": {
+        "@assemblyscript/wasi-shim": "^0.1.0",
         "assemblyscript": "^0.27.29"
       }
     },
+    "node_modules/@assemblyscript/wasi-shim": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/@assemblyscript/wasi-shim/-/wasi-shim-0.1.0.tgz",
+      "integrity": "sha512-fSLH7MdJHf2uDW5llA5VCF/CG62Jp2WkYGui9/3vIWs3jDhViGeQF7nMYLUjpigluM5fnq61I6obtCETy39FZw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/assemblyscript"
+      }
+    },
     "node_modules/assemblyscript": {
       "version": "0.27.29",
       "resolved": "https://registry.npmjs.org/assemblyscript/-/assemblyscript-0.27.29.tgz",
diff --git a/cart/as/package.json b/cart/as/package.json
index e5f987c..0322ab0 100644
--- a/cart/as/package.json
+++ b/cart/as/package.json
@@ -1,13 +1,16 @@
 {
-  "name": "@null0/example-as",
+  "name": "example-as",
+  "private": true,
   "version": "0.0.0",
   "scripts": {
-    "build": "asc src/index.ts --exportStart=_null0_init  --target release --use trace=_null0_trace --use abort=_null0_abort --use seed=_null0_seed --lib ./null0.ts && mkdir -p build/cart/assets && cp build/main.wasm build/cart && cp src/assets/* build/cart/assets && cd build/cart && zip -r ../example.null0 .",
-    "start": "../../build/host/null0  ./build/example.null0",
+    "build": "asc --config ./node_modules/@assemblyscript/wasi-shim/asconfig.json --lib ./null0.ts --optimizeLevel 3 --outFile build/cart/main.wasm src/main.ts",
+    "postbuild": "mkdir -p build/cart/assets && cp src/assets/* build/cart/assets && cd build/cart && zip -r ../${npm_package_name}.null0 . && cp ../${npm_package_name}.null0 ../../../../docs/cart/",
+    "start": "../../build/host/null0  ./build/${npm_package_name}.null0",
     "prestart": "npm run build"
   },
   "license": "MIT",
   "devDependencies": {
+    "@assemblyscript/wasi-shim": "^0.1.0",
     "assemblyscript": "^0.27.29"
   },
   "type": "module",
diff --git a/cart/as/src/index.ts b/cart/as/src/main.ts
similarity index 69%
rename from cart/as/src/index.ts
rename to cart/as/src/main.ts
index 8fdc3bc..5fe29d6 100644
--- a/cart/as/src/index.ts
+++ b/cart/as/src/main.ts
@@ -1,9 +1,9 @@
 // called when the cart is loaded
 export function load(): void {
-  trace("hello from AS");
+  console.log("hello from AS");
 }
 
 // called on every frame
 export function update(): void {
-  trace("update");
+  console.log("update");
 }
diff --git a/cart/as/src/tsconfig.json b/cart/as/tsconfig.json
similarity index 58%
rename from cart/as/src/tsconfig.json
rename to cart/as/tsconfig.json
index e28fcf2..4a6705d 100644
--- a/cart/as/src/tsconfig.json
+++ b/cart/as/tsconfig.json
@@ -1,6 +1,4 @@
 {
   "extends": "assemblyscript/std/assembly.json",
-  "include": [
-    "./**/*.ts"
-  ]
-}
\ No newline at end of file
+  "include": ["./src/**/*.ts"]
+}
diff --git a/docs/cart/example-as.null0 b/docs/cart/example-as.null0
new file mode 100644
index 0000000..7efa633
Binary files /dev/null and b/docs/cart/example-as.null0 differ
diff --git a/docs/null0.js b/docs/null0.js
index 547f560..1623a5c 100755
--- a/docs/null0.js
+++ b/docs/null0.js
@@ -134,10 +134,6 @@ export async function setupCart(
 
   out.cart = cart;
 
-  if (cart._null0_init) {
-    cart._null0_init();
-  }
-
   if (cart._start) {
     cart._start();
   }
diff --git a/null0_api/src/null0_api_wamr.h b/null0_api/src/null0_api_wamr.h
index aaaab30..7ae8080 100755
--- a/null0_api/src/null0_api_wamr.h
+++ b/null0_api/src/null0_api_wamr.h
@@ -833,13 +833,13 @@ bool null0_init() {
   cart_keyUp = wasm_runtime_lookup_function(module_inst, "keyUp");
   cart_keyDown = wasm_runtime_lookup_function(module_inst, "keyDown");
 
-  // this is for AS, since it needs a seperate function called
+  // this is for hosts that seperate init
   wasm_function_inst_t cart_init = NULL;
-  cart_init = wasm_runtime_lookup_function(module_inst, "_null0_init");
+  cart_init = wasm_runtime_lookup_function(module_inst, "load");
   if (cart_init != NULL) {
     if (!wasm_runtime_call_wasm(exec_env, cart_init, 0, NULL)) {
       // not fatal, but this will help with troubleshooting
-      printf("init: %s\n", wasm_runtime_get_exception(module_inst));
+      printf("load: %s\n", wasm_runtime_get_exception(module_inst));
     }
   }