diff --git a/package.json b/package.json
index 40b9c90b..f5070a2e 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,6 @@
     "babel-eslint": "latest",
     "eslint": "^7.29.0",
     "eslint-config-prettier": "^8.1.0",
-    "eslint-plugin-nuxt": "^2.0.0",
     "eslint-plugin-prettier": "^3.3.1",
     "eslint-plugin-vue": "^7.12.1",
     "np": "^7.5.0",
@@ -66,13 +65,10 @@
     "postcss-nested": "^5.0.5",
     "prettier": "^2.2.1",
     "rollup": "^2.52.2",
-    "rollup-plugin-bundle-size": "^1.0.3",
-    "rollup-plugin-livereload": "^2.0.0",
     "rollup-plugin-postcss": "^4.0.0",
     "rollup-plugin-serve": "^1.1.0",
     "rollup-plugin-terser": "^7.0.2",
     "rollup-plugin-typescript2": "^0.30.0",
-    "rollup-plugin-vue": "^6.0.0",
     "typescript": "^4.3.5",
     "vite": "^2.3.8",
     "vue": "^3.0.5",
diff --git a/rollup.config.js b/rollup.config.js
index 1895b640..8e578a1e 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -92,17 +92,16 @@ function createConfig(format, output, plugins = []) {
 
   if (isGlobalBuild) output.name = pascalcase(pkg.name);
 
-  const shouldEmitDeclarations = !hasTSChecked;
-
   const tsPlugin = ts({
     check: !hasTSChecked,
+    clean: !hasTSChecked,
     tsconfig: path.resolve(__dirname, 'tsconfig.json'),
     cacheRoot: path.resolve(__dirname, 'node_modules/.rts2_cache'),
     tsconfigOverride: {
       compilerOptions: {
-        sourceMap: true,
-        declaration: shouldEmitDeclarations,
-        declarationMap: shouldEmitDeclarations
+        sourceMap: !hasTSChecked,
+        declaration: !hasTSChecked,
+        declarationMap: !hasTSChecked
       },
       exclude: ['__tests__', 'test-dts']
     }
diff --git a/src/container/EdgeRenderer/index.tsx b/src/container/EdgeRenderer/index.tsx
index c962dff3..b700990d 100644
--- a/src/container/EdgeRenderer/index.tsx
+++ b/src/container/EdgeRenderer/index.tsx
@@ -101,8 +101,8 @@ const EdgeCmp = defineComponent({
     }
   },
   setup(props) {
-    const sourceHandleId = computed(() => props.edge.sourceHandle ?? null);
-    const targetHandleId = computed(() => props.edge.targetHandle ?? null);
+    const sourceHandleId = computed(() => props.edge.sourceHandle || null);
+    const targetHandleId = computed(() => props.edge.targetHandle || null);
     const nodes = computed(() => getSourceTargetNodes(props.edge, props.nodes));
 
     const onConnectEdge = (connection: Connection) => {
diff --git a/src/hooks/useZoomPanHelper.ts b/src/hooks/useZoomPanHelper.ts
index b7f35306..fb88e8dc 100644
--- a/src/hooks/useZoomPanHelper.ts
+++ b/src/hooks/useZoomPanHelper.ts
@@ -42,9 +42,9 @@ const useZoomPanHelper = (): ZoomPanHelperFunctions => {
             bounds,
             width,
             height,
-            options.minZoom ?? minZoom,
-            options.maxZoom ?? maxZoom,
-            options.padding ?? DEFAULT_PADDING
+            options.minZoom || minZoom,
+            options.maxZoom || maxZoom,
+            options.padding || DEFAULT_PADDING
           );
           const transform = zoomIdentity.translate(x, y).scale(zoom);
 
diff --git a/src/store/configure-store.ts b/src/store/configure-store.ts
index cb91b3f7..d8042a62 100644
--- a/src/store/configure-store.ts
+++ b/src/store/configure-store.ts
@@ -174,8 +174,8 @@ export default function configureStore(
         };
       },
       updateUserSelection(mousePos) {
-        const startX = this.userSelectionRect.startX ?? 0;
-        const startY = this.userSelectionRect.startY ?? 0;
+        const startX = this.userSelectionRect.startX || 0;
+        const startY = this.userSelectionRect.startY || 0;
 
         const nextUserSelectRect: ReactFlowState['userSelectionRect'] = {
           ...this.userSelectionRect,
diff --git a/src/utils/graph.ts b/src/utils/graph.ts
index ff571568..675c938b 100644
--- a/src/utils/graph.ts
+++ b/src/utils/graph.ts
@@ -268,14 +268,14 @@ const parseElements = (nodes: Node[], edges: Edge[]): Elements => {
 
 export const onLoadGetElements = (currentStore: Store<'revue-flow', ReactFlowState>) => {
   return (): Elements => {
-    return parseElements(currentStore.nodes ?? [], currentStore.edges ?? []);
+    return parseElements(currentStore.nodes || [], currentStore.edges || []);
   };
 };
 
 export const onLoadToObject = (currentStore: Store<'revue-flow', ReactFlowState>) => {
   return (): FlowExportObject => {
     return {
-      elements: parseElements(currentStore.nodes ?? [], currentStore.edges ?? []),
+      elements: parseElements(currentStore.nodes || [], currentStore.edges || []),
       position: [currentStore.transform[0], currentStore.transform[1]],
       zoom: currentStore.transform[2]
     };