diff --git a/arkoala-arkts/arkui/arktsconfig-pure-sts.json b/arkoala-arkts/arkui/arktsconfig-pure-sts.json
index 52c609f78cac46ac855da487b123bb430f98654c..9d78ffcd259e3e31569a0b5f24f2335e940623df 100644
--- a/arkoala-arkts/arkui/arktsconfig-pure-sts.json
+++ b/arkoala-arkts/arkui/arktsconfig-pure-sts.json
@@ -2,7 +2,18 @@
     "compilerOptions": {
         "package": "@ohos.arkui",
         "outDir": "build/sts/abc",
-        "baseUrl": "./src/sts"
+        "baseUrl": "./src/sts",
+        "paths": {
+            "@koalaui/runtime": [
+                "../../../memo-plugin/runtime-api"
+            ]
+        },
+        "plugins": [
+            {
+                "transform": "@koalaui/memo-plugin",
+                "stage": "checked"
+            }
+        ]
     },
     "files": [
         "./src/sts/arkui.sts"
diff --git a/arkoala-arkts/arkui/package.json b/arkoala-arkts/arkui/package.json
index b09a5f0505e878a4166161b0217ba7de4b83e1d4..0674cb1082bf4fe60984ed11c110884e79c1b6e9 100644
--- a/arkoala-arkts/arkui/package.json
+++ b/arkoala-arkts/arkui/package.json
@@ -10,6 +10,6 @@
     "build:arkui-no-common:inc": "npm run unmemoize && fast-arktsc --input-files ./arktsconfig-unmemoized.json --output-dir ./build --compiler ../../incremental/tools/panda/arkts/arktsc --link-name arkui-no-common && ninja ${NINJA_OPTIONS} -f build/build.ninja",
     "build:arkui-no-common": "npm run unmemoize && fast-arktsc --input-files ./arktsconfig-unmemoized.json --output-dir ./build --compiler ../../incremental/tools/panda/arkts/arktsc --link-name arkui-no-common && ninja ${NINJA_OPTIONS} -f build/build.ninja",
     "unmemoize": "ets-tsc -b ./tsconfig-unmemoize.json && cp -r ./src/generated/arkts ./build/unmemoized/src/generated",
-    "build:arkui:pure-sts": "mkdir -p build/sts/abc && ../../incremental/tools/panda/arkts/arktsc --arktsconfig arktsconfig-pure-sts.json"
+    "build:arkui:pure-sts": "mkdir -p build/sts/abc && ../../incremental/tools/panda/arkts/arktsc-capi --arktsconfig arktsconfig-pure-sts.json --file src/sts/arkui.sts --output build/sts/abc --dump-plugin-ast --restart-stages"
   }
 }
diff --git a/arkoala-arkts/arkui/src/sts/arkui.sts b/arkoala-arkts/arkui/src/sts/arkui.sts
index 58a5b1b1a086011f649f6d5a61032d2240641850..37d17fe33a7971deca1610340076d4127a54d0a9 100644
--- a/arkoala-arkts/arkui/src/sts/arkui.sts
+++ b/arkoala-arkts/arkui/src/sts/arkui.sts
@@ -11,35 +11,47 @@ export @interface State {}
 export @interface memo {}
 
 export abstract class StructBase<T, OptionsT> {
+    @memo
     @BuilderLambda("instantiateImpl")
     static $_instantiate<S extends StructBase<S, OptionsS>, OptionsS> (
         factory: () => S,
         options?: OptionsS,
-        content?: () => void
+        @memo content?: () => void
     ): S {
         throw new Error("This method should only be called through a @BuilderLambda redirect")
     }
 
+    @memo
     static instantiateImpl<S extends StructBase<S, OptionsS>, OptionsS>(
-        builder: ((instance: S)=>S)|undefined,
+        @memo builder: ((instance: S)=>S)|undefined,
         factory: () => S,
         options?: OptionsS,
-        content?: () => void
+        @memo content?: () => void
     ) {
         console.log("Struct instantiate redirected")
         const instance = factory()
         if (builder !== undefined) builder(instance)
         instance._build(builder, content, options)
     }
+
+    @memo
     build() {
         throw new Error("The struct build() should never be executed directly")
     }
 
-    protected _build(style: ((instance: T)=>T)|undefined, content: (() => void)|undefined, options: OptionsT|undefined) {
+    @memo
+    protected _build(
+        @memo
+        style: ((instance: T)=>T)|undefined, 
+        @memo
+        content: (() => void)|undefined, 
+        options: OptionsT|undefined
+    ) {
         throw new Error("The struct _build() must have a valid override")
     }
 }
 
+/*
 export enum Color {
     White,
     Red
@@ -153,3 +165,4 @@ export class Text extends CommonMethod {
         return this
     }
 }
+*/
diff --git a/arkoala-arkts/libarkts/arktsconfig.json b/arkoala-arkts/libarkts/arktsconfig.json
index 85e9e51f6d825c201ca549ce35952deed24d1685..48dfefbf431bc50044e851e8aad77c37c91c1f7b 100644
--- a/arkoala-arkts/libarkts/arktsconfig.json
+++ b/arkoala-arkts/libarkts/arktsconfig.json
@@ -1,7 +1,13 @@
 {
     "compilerOptions": {
+	"package0": "@koalaui/example",
         "outDir": "./abc",
         "baseUrl": ".",
+        "paths": {
+            "@koalaui/runtime": [
+                "../memo-plugin/runtime-api"
+            ]
+        },
         "plugins": [
             {
                 "transform": "./plugins/build/src/printer-plugin.js",
@@ -11,11 +17,14 @@
                 "transform": "./plugins/build/src/parsed-stage-plugin.js",
                 "stage": "parsed",
                 "arkui": "../../../arkui/src/sts"
-
             },
             {
                 "transform": "./plugins/build/src/checked-stage-plugin.js",
                 "stage": "checked"
+            },
+            {
+                "transform": "@koalaui/memo-plugin",
+                "stage": "checked"
             }
         ]
     }
diff --git a/arkoala-arkts/libarkts/src/es2panda.ts b/arkoala-arkts/libarkts/src/es2panda.ts
index 46ba9309be52164319da72f3f2df3933d8e0b2da..8410c3b99fb626961596fa74f8ac6670b6f94cb5 100644
--- a/arkoala-arkts/libarkts/src/es2panda.ts
+++ b/arkoala-arkts/libarkts/src/es2panda.ts
@@ -75,10 +75,12 @@ function insertPlugin(pluginsByState: Map<Es2pandaContextState, (ast: AstNode) =
 
 function restartCompilerUptoState(ast: AstNode, state: Es2pandaContextState, restart: boolean) {
     if (restart) {
+        console.log("restarting")
         const srcText = filterSource(ast.dumpSrc())
         global.es2panda._DestroyContext(global.context)
         global.context = Context.createFromString(srcText).peer
     }
+    console.log("proceeeding to", Es2pandaContextState[state])
     proceedToState(state)
 }
 
diff --git a/arkoala-arkts/libarkts/src/utils.ts b/arkoala-arkts/libarkts/src/utils.ts
index c30d3b0f576dea3fcd3e30617d4262ed5de25672..464eb7eb697055e8e8671b26656e2b0c7d01a4cf 100644
--- a/arkoala-arkts/libarkts/src/utils.ts
+++ b/arkoala-arkts/libarkts/src/utils.ts
@@ -31,9 +31,10 @@ export function isNumber(value: any): value is number {
 // Until we keep feeding ast dumps back to the parser
 // this function is needed.
 export function filterSource(text: string): string {
-    return text
+    const filtered =  text
         .replaceAll(/%/g, "_")
         .replaceAll(/#/g, "_")
         .replaceAll("<cctor>", "_cctor_")
-}
 
+    return filtered
+}
diff --git a/arkoala-arkts/package.json b/arkoala-arkts/package.json
index ee2066012bc889a8045bbd7ff77c1a9f3ae9ae4b..effe48e80cdd74b4c5a5205ff14353e7c65ae810 100644
--- a/arkoala-arkts/package.json
+++ b/arkoala-arkts/package.json
@@ -4,6 +4,7 @@
     "workspaces": [
         "./arkui",
         "./libarkts",
+        "./memo-plugin",
         "./loader",
         "./har",
         "../arkoala/arkui-common",
diff --git a/arkoala-arkts/trivial/user/arktsconfig-pure-sts.json b/arkoala-arkts/trivial/user/arktsconfig-pure-sts.json
index 551fb7ed8776980bbc9bca07f17a1f373fae2bea..403d8fed36501eedf92d37806f368aa38baa6646 100644
--- a/arkoala-arkts/trivial/user/arktsconfig-pure-sts.json
+++ b/arkoala-arkts/trivial/user/arktsconfig-pure-sts.json
@@ -4,7 +4,10 @@
         "outDir": "build/sts/abc",
         "baseUrl": ".",
         "paths": {
-            "@ohos.arkui": ["../../arkui/src/sts"]
+            "@ohos.arkui": ["../../arkui/src/sts"],
+            "@koalaui/runtime": [
+                "../../memo-plugin/runtime-api"
+            ]
         },
        "plugins": [
             {
@@ -19,6 +22,10 @@
             {
                 "transform": "@koalaui/libarkts/plugins/checked-stage-plugin",
                 "stage": "checked"
+            },
+            {
+                "transform": "@koalaui/memo-plugin",
+                "stage": "checked"
             }
         ]
     },