diff --git a/package-lock.json b/package-lock.json
index 797d8c2..d2dca72 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -47,7 +47,8 @@
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         "stylelint": "^13.13.1",
         "stylelint-config-sass-guidelines": "^8.0.0",
-        "typescript": "~4.5.5"
+        "typescript": "~4.5.5",
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+      "dependencies": {
+        "@babel/parser": "^7.16.4",
+        "@vue/compiler-core": "3.2.36",
+        "@vue/shared": "3.2.36",
+        "estree-walker": "^2.0.2",
+        "magic-string": "^0.25.7"
+      }
+    },
+    "node_modules/@volar/vue-typescript/node_modules/@vue/shared": {
+      "version": "3.2.36",
+      "resolved": "https://registry.npmjs.org/@vue/shared/-/shared-3.2.36.tgz",
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     "node_modules/@vue/cli-overlay": {
       "version": "5.0.4",
       "resolved": "https://registry.npmjs.org/@vue/cli-overlay/-/cli-overlay-5.0.4.tgz",
@@ -14710,6 +14858,21 @@
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       "dev": true
     },
+    "node_modules/vue-tsc": {
+      "version": "0.35.0",
+      "resolved": "https://registry.npmjs.org/vue-tsc/-/vue-tsc-0.35.0.tgz",
+      "integrity": "sha512-RcL7PM3M1nSaVQU84mRPOXk1t/mAZ25QCx4L0rNQzozJYhz1wSVQWYqq9UfhE2lW8nMAQzQtLZgvjaPR4Q29ZA==",
+      "dev": true,
+      "dependencies": {
+        "@volar/vue-typescript": "0.35.0"
+      },
+      "bin": {
+        "vue-tsc": "bin/vue-tsc.js"
+      },
+      "peerDependencies": {
+        "typescript": "*"
+      }
+    },
     "node_modules/vue3-click-away": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/vue3-click-away/-/vue3-click-away-1.2.4.tgz",
@@ -17134,6 +17297,157 @@
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       "dev": true
     },
+    "@volar/code-gen": {
+      "version": "0.35.0",
+      "resolved": "https://registry.npmjs.org/@volar/code-gen/-/code-gen-0.35.0.tgz",
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+      "dev": true,
+      "requires": {
+        "@volar/source-map": "0.35.0"
+      }
+    },
+    "@volar/source-map": {
+      "version": "0.35.0",
+      "resolved": "https://registry.npmjs.org/@volar/source-map/-/source-map-0.35.0.tgz",
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+    },
+    "@volar/vue-code-gen": {
+      "version": "0.35.0",
+      "resolved": "https://registry.npmjs.org/@volar/vue-code-gen/-/vue-code-gen-0.35.0.tgz",
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+            "postcss": "^8.1.10",
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+          "resolved": "https://registry.npmjs.org/@vue/reactivity-transform/-/reactivity-transform-3.2.36.tgz",
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+          "dev": true,
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+            "@babel/parser": "^7.16.4",
+            "@vue/compiler-core": "3.2.36",
+            "@vue/shared": "3.2.36",
+            "estree-walker": "^2.0.2",
+            "magic-string": "^0.25.7"
+          }
+        },
+        "@vue/shared": {
+          "version": "3.2.36",
+          "resolved": "https://registry.npmjs.org/@vue/shared/-/shared-3.2.36.tgz",
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+          "dev": true
+        }
+      }
+    },
     "@vue/cli-overlay": {
       "version": "5.0.4",
       "resolved": "https://registry.npmjs.org/@vue/cli-overlay/-/cli-overlay-5.0.4.tgz",
@@ -26711,6 +27025,15 @@
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       "dev": true
     },
+    "vue-tsc": {
+      "version": "0.35.0",
+      "resolved": "https://registry.npmjs.org/vue-tsc/-/vue-tsc-0.35.0.tgz",
+      "integrity": "sha512-RcL7PM3M1nSaVQU84mRPOXk1t/mAZ25QCx4L0rNQzozJYhz1wSVQWYqq9UfhE2lW8nMAQzQtLZgvjaPR4Q29ZA==",
+      "dev": true,
+      "requires": {
+        "@volar/vue-typescript": "0.35.0"
+      }
+    },
     "vue3-click-away": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/vue3-click-away/-/vue3-click-away-1.2.4.tgz",
diff --git a/package.json b/package.json
index 0ad3992..fabb8be 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,8 @@
     "lint:js": "vue-cli-service lint --no-fix",
     "lint:css": "stylelint 'src/**/*.{vue,scss}'",
     "lint": "npm run lint:js && npm run lint:css",
-    "start": "npm run serve"
+    "start": "npm run serve",
+    "typecheck": "vue-tsc --noEmit"
   },
   "dependencies": {
     "ethereum-blockies-base64": "^1.0.2",
@@ -53,7 +54,8 @@
     "sinon-chai": "^3.7.0",
     "stylelint": "^13.13.1",
     "stylelint-config-sass-guidelines": "^8.0.0",
-    "typescript": "~4.5.5"
+    "typescript": "~4.5.5",
+    "vue-tsc": "^0.35.0"
   },
   "lavamoat": {
     "allowScripts": {
diff --git a/src/components/PostEditor.vue b/src/components/PostEditor.vue
index 7f4b0c9..786cd24 100644
--- a/src/components/PostEditor.vue
+++ b/src/components/PostEditor.vue
@@ -67,7 +67,7 @@
           type="submit"
           v-if="inReplyTo"
           class="submit-btn-small"
-          @click.prevent="publish($event)"
+          @click.prevent="publish()"
         >
           Publish
         </button>
diff --git a/src/components/PostList.vue b/src/components/PostList.vue
index 4c202c7..ff5e565 100644
--- a/src/components/PostList.vue
+++ b/src/components/PostList.vue
@@ -46,10 +46,9 @@ function isPageFull(): boolean {
 }
 
 function loadNextPage() {
-  let maxId
   if (props.posts.length > 0) {
-    maxId = props.posts[props.posts.length - 1].id
+    const maxId = props.posts[props.posts.length - 1].id
+    emit("load-next-page", maxId)
   }
-  emit("load-next-page", maxId)
 }
 </script>
diff --git a/src/components/PostOrRepost.vue b/src/components/PostOrRepost.vue
index fc833cc..9c7ae7a 100644
--- a/src/components/PostOrRepost.vue
+++ b/src/components/PostOrRepost.vue
@@ -25,7 +25,7 @@ const props = defineProps<{
   post: PostObject,
 }>()
 
-const emit = defineEmits<{(event: "post-deleted"): void}>()
+const emit = defineEmits<{(event: "post-deleted", postId: string): void}>()
 
 function onPostDeleted(postId: string) {
   emit("post-deleted", postId)
diff --git a/src/components/Search.vue b/src/components/Search.vue
index 63b35e5..54a9dbe 100644
--- a/src/components/Search.vue
+++ b/src/components/Search.vue
@@ -1,5 +1,5 @@
 <template>
-  <form class="search" @submit.prevent="search($event)">
+  <form class="search" @submit.prevent="search()">
     <input type="text" placeholder="Search..." v-model="q">
     <button v-if="q" type="button" @click="clear()">
       <img :src="require('@/assets/feather/delete.svg')">
diff --git a/src/views/PostOverlay.vue b/src/views/PostOverlay.vue
index 4f2fbde..0e2b7a4 100644
--- a/src/views/PostOverlay.vue
+++ b/src/views/PostOverlay.vue
@@ -8,7 +8,7 @@
     <div class="token">
       <div class="token-content">
         <div class="token-description" v-html="token.description"></div>
-        <div class="token-image">
+        <div class="token-image" v-if="imageUrl">
           <img :src="imageUrl">
         </div>
       </div>
diff --git a/src/views/Subscription.vue b/src/views/Subscription.vue
index 6ff4fb6..5e1eaab 100644
--- a/src/views/Subscription.vue
+++ b/src/views/Subscription.vue
@@ -56,6 +56,7 @@
 /* eslint-disable no-unused-vars */
 /* eslint-disable no-undef */
 import { ref, onMounted } from "vue"
+import { $, $ref } from "vue/macros"
 import { useRoute } from "vue-router"
 
 import {
@@ -91,10 +92,10 @@ let subscriptionState = $ref<SubscriptionState | null>(null)
 let subscriberAddress = $ref<string | null>(null)
 
 onMounted(async () => {
-  const { authToken } = useCurrentUser()
+  const { authToken } = $(useCurrentUser())
   profile = await getProfile(
     authToken,
-    route.params.profileId,
+    route.params.profileId as string,
   )
   profileEthereumAddress = getVerifiedEthereumAddress(profile)
 })
@@ -125,6 +126,9 @@ function disconnectWallet() {
 }
 
 async function connectWallet() {
+  if (!profileEthereumAddress) {
+    return
+  }
   const web3Provider = getWeb3Provider()
   const signer = await getWallet(web3Provider)
   if (!signer) {
@@ -186,7 +190,7 @@ async function checkSubscription() {
 function canConfigureSubscription(): boolean {
   return (
     isCurrentUser() &&
-    currentUser.wallet_address &&
+    Boolean(currentUser?.wallet_address) &&
     subscriptionConfigured === false
   )
 }
@@ -251,7 +255,7 @@ async function onMakeSubscriptionPayment() {
 function canCancel(): boolean {
   return (
     !isCurrentUser() &&
-    subscriptionState?.senderBalance &&
+    subscriptionState !== null &&
     !subscriptionState.senderBalance.isZero()
   )
 }
@@ -280,7 +284,7 @@ async function onCancelSubscription() {
 }
 
 function isRecipient(): boolean {
-  return isCurrentUser() && subscription
+  return isCurrentUser() && subscription !== null
 }
 
 async function onCheckSubsciptionState() {
diff --git a/src/views/TagTimeline.vue b/src/views/TagTimeline.vue
index 69167e9..3839858 100644
--- a/src/views/TagTimeline.vue
+++ b/src/views/TagTimeline.vue
@@ -27,7 +27,7 @@ onMounted(async () => {
   const { authToken } = useCurrentUser()
   posts.value = await getTagTimeline(
     authToken.value,
-    route.params.tagName,
+    route.params.tagName as string,
   )
 })
 
@@ -35,7 +35,7 @@ async function loadNextPage(maxId: string) {
   const { authToken } = useCurrentUser()
   const newPosts = await getTagTimeline(
     authToken.value,
-    route.params.tagName,
+    route.params.tagName as string,
     maxId,
   )
   posts.value.push(...newPosts)