diff --git a/web/src/pages/Account.vue b/web/src/pages/Account.vue
index ded0bbe..85a8d46 100644
--- a/web/src/pages/Account.vue
+++ b/web/src/pages/Account.vue
@@ -1,5 +1,5 @@
 <script lang="ts" setup>
-import { ref } from "vue"
+import { computed, ref } from "vue"
 import Autocomplete, { Suggestion } from '../components/Autocomplete.vue'
 import Currency from "../components/Currency.vue";
 import TransactionRow from "../components/TransactionRow.vue";
@@ -22,10 +22,10 @@ function saveTransaction(e: MouseEvent) {
     POST("/transaction/new", JSON.stringify({
         budget_id: props.budgetid,
         account_id: props.accountid,
-        date: TransactionDate,
-        payee: Payee,
-        category: Category,
-        memo: Memo,
+        date: TransactionDate.value,
+        payee: Payee.value,
+        category: Category.value,
+        memo: Memo.value,
         amount: Amount,
         state: "Uncleared"
     }))
diff --git a/web/src/pages/Admin.vue b/web/src/pages/Admin.vue
index f31b6dd..ec56a73 100644
--- a/web/src/pages/Admin.vue
+++ b/web/src/pages/Admin.vue
@@ -1,10 +1,8 @@
-<script lang="ts">
-import { defineComponent } from "vue";
+<script lang="ts" setup>
+import { onMounted } from 'vue';
 
-export default defineComponent({
-    mounted() {
-        document.title = "Budgeteer - Admin";
-    },
+onMounted(() => {
+    document.title = "Budgeteer - Admin";
 })
 </script>
 
diff --git a/web/src/pages/BudgetSidebar.vue b/web/src/pages/BudgetSidebar.vue
index d612473..ec30974 100644
--- a/web/src/pages/BudgetSidebar.vue
+++ b/web/src/pages/BudgetSidebar.vue
@@ -1,20 +1,25 @@
-<script lang="ts">
-import { mapState } from "pinia"
-import { defineComponent } from "vue"
+<script lang="ts" setup>
 import Currency from "../components/Currency.vue"
 import { useBudgetsStore } from "../stores/budget"
 import { useAccountStore } from "../stores/budget-account"
 import { useSettingsStore } from "../stores/settings"
 
-export default defineComponent({
-    props: ["budgetid", "accountid"],
-    components: { Currency },
-    computed: {
-      ...mapState(useSettingsStore, ["ExpandMenu"]),
-      ...mapState(useBudgetsStore, ["CurrentBudgetName", "CurrentBudgetID"]),
-      ...mapState(useAccountStore, ["OnBudgetAccounts", "OnBudgetAccountsBalance", "OffBudgetAccounts", "OffBudgetAccountsBalance"])
-    }
-})
+const props = defineProps<{
+  budgetid: string,
+  accountid: string,
+}>();
+
+const ExpandMenu = useSettingsStore().Menu.Expand;
+
+const budgetStore = useBudgetsStore();
+const CurrentBudgetName = budgetStore.CurrentBudgetName;
+const CurrentBudgetID = budgetStore.CurrentBudgetID;
+
+const accountStore = useAccountStore();
+const OnBudgetAccounts = accountStore.OnBudgetAccounts;
+const OffBudgetAccounts = accountStore.OffBudgetAccounts;
+const OnBudgetAccountsBalance = accountStore.OnBudgetAccountsBalance;
+const OffBudgetAccountsBalance = accountStore.OffBudgetAccountsBalance;
 </script>
 
 <template>
diff --git a/web/src/pages/Budgeting.vue b/web/src/pages/Budgeting.vue
index 022ca0d..a232588 100644
--- a/web/src/pages/Budgeting.vue
+++ b/web/src/pages/Budgeting.vue
@@ -1,68 +1,55 @@
-<script lang="ts">
-import { mapState } from "pinia";
-import { defineComponent, PropType } from "vue";
+<script lang="ts" setup>
+import { computed, defineProps, onMounted, PropType, watch, watchEffect } from "vue";
 import Currency from "../components/Currency.vue";
 import { useBudgetsStore } from "../stores/budget";
-import { Category, useAccountStore } from "../stores/budget-account";
+import { useAccountStore } from "../stores/budget-account";
 
 interface Date {
     Year: number,
     Month: number,
 }
 
-export default defineComponent({
-    props: {
-        budgetid: {} as PropType<string>, 
-        year: {} as PropType<number>,
-        month: {} as PropType<number>,
-    },
-    computed: {
-        ...mapState(useBudgetsStore, ["CurrentBudgetID"]),
-        Categories() : Category[] {
-            const accountStore = useAccountStore();
-            return [...accountStore.CategoriesForMonth(this.selected.Year, this.selected.Month)];
-        },
-        previous() : Date {
-            return {
-                Year: new Date(this.selected.Year, this.selected.Month - 1, 1).getFullYear(),
-                Month: new Date(this.selected.Year, this.selected.Month - 1, 1).getMonth(),
-            };
-        },
-        current() : Date {
-            return {
-                Year: new Date().getFullYear(),
-                Month: new Date().getMonth(),
-            };
-        },
-        selected() : Date {
-            return {
-                Year: this.year ?? this.current.Year,
-                Month: Number(this.month ?? this.current.Month) + 1
-            }
-        },
-        next() : Date {
-            return {
-                Year: new Date(this.selected.Year, Number(this.month) + 1, 1).getFullYear(),
-                Month: new Date(this.selected.Year, Number(this.month) + 1, 1).getMonth(),
-            };
-        }
-    },
-    mounted() : Promise<void> {
-        document.title = "Budgeteer - Budget for " + this.selected.Month + "/" + this.selected.Year;
-        return useAccountStore().FetchMonthBudget(this.budgetid ?? "", this.selected.Year, this.selected.Month);
-    },
-    watch: {
-        year() {
-            if (this.year != undefined && this.month != undefined)
-                return useAccountStore().FetchMonthBudget(this.budgetid ?? "", this.year, this.month);
-        },
-        month() {
-            if (this.year != undefined && this.month != undefined)
-                return useAccountStore().FetchMonthBudget(this.budgetid ?? "", this.year, this.month);
-        },
-    },
-    components: { Currency }
-})
+const props = defineProps<{
+    budgetid: string,
+    year: string,
+    month: string,
+}>()
+
+const budgetsStore = useBudgetsStore();
+const CurrentBudgetID = computed(() => budgetsStore.CurrentBudgetID);
+
+const accountStore = useAccountStore();
+//const categoriesForMonth = accountStore.CategoriesForMonth;
+const Categories = computed(() => {
+            const yearMap = accountStore.Months.get(selected.value.Year);
+            const monthMap = yearMap?.get(selected.value.Month);
+            console.log("MTH", monthMap)
+        const CategoriesForMonth = [ ...monthMap?.values() || [] ];
+    console.log("YAY?")
+    return CategoriesForMonth;
+    //return [...categoriesForMonth(selected.value.Year, selected.value.Month)];
+});
+const previous = computed(() => ({
+        Year: new Date(selected.value.Year, selected.value.Month - 1, 1).getFullYear(),
+        Month: new Date(selected.value.Year, selected.value.Month - 1, 1).getMonth(),
+}));
+const current = computed(() => ({
+        Year: new Date().getFullYear(),
+        Month: new Date().getMonth(),
+}));
+const selected = computed(() => ({
+        Year: Number(props.year) ?? current.value.Year,
+        Month: Number(props.month ?? current.value.Month) + 1
+}));
+const next = computed(() => ({
+        Year: new Date(selected.value.Year, Number(props.month) + 1, 1).getFullYear(),
+        Month: new Date(selected.value.Year, Number(props.month) + 1, 1).getMonth(),
+}));
+
+watchEffect(() => {
+    if (props.year != undefined && props.month != undefined)
+        return useAccountStore().FetchMonthBudget(props.budgetid ?? "", Number(props.year), Number(props.month));
+});
 
 /*{{define "title"}}
     {{printf "Budget for %s %d" .Date.Month .Date.Year}}
diff --git a/web/src/pages/Dashboard.vue b/web/src/pages/Dashboard.vue
index 000fa30..1325af1 100644
--- a/web/src/pages/Dashboard.vue
+++ b/web/src/pages/Dashboard.vue
@@ -1,17 +1,13 @@
-<script lang="ts">
+<script lang="ts" setup>
 import NewBudget from '../dialogs/NewBudget.vue';
 import Card from '../components/Card.vue';
-import { defineComponent } from 'vue';
-import { mapState } from 'pinia';
 import { useSessionStore } from '../stores/session';
 
-export default defineComponent({
-    props: ["budgetid"],
-    components: { NewBudget, Card },
-    computed: {
-        ...mapState(useSessionStore, ["BudgetsList"]),
-    }
-})
+const props = defineProps<{
+    budgetid: string,
+}>();
+
+const BudgetsList = useSessionStore().BudgetsList;
 </script>
 
 <template>
diff --git a/web/src/pages/Index.vue b/web/src/pages/Index.vue
index 7dc6d55..d16481a 100644
--- a/web/src/pages/Index.vue
+++ b/web/src/pages/Index.vue
@@ -1,9 +1,4 @@
-<script lang="ts">
-import { defineComponent } from 'vue';
-
-export default defineComponent({
-	
-})
+<script lang="ts" setup>
 </script>
 
 <template>
diff --git a/web/src/pages/Login.vue b/web/src/pages/Login.vue
index 648a96e..5c69f61 100644
--- a/web/src/pages/Login.vue
+++ b/web/src/pages/Login.vue
@@ -1,46 +1,48 @@
-<script lang="ts">
-import { defineComponent } from "vue";
+<script lang="ts" setup>
+import { onMounted, ref } from "vue";
+import { useRouter } from "vue-router";
 import { useSessionStore } from "../stores/session";
 
-export default defineComponent({
-    data() {
-        return {
-            error: "",
-            login: {
-                user: "",
-                password: ""
-            },
-            showPassword: false
-        }
-    },
-    mounted() {
-        document.title = "Budgeteer - Login";
-    },
-    methods: {
-        formSubmit(e : MouseEvent) {
-            e.preventDefault();
-            useSessionStore().login(this.$data.login)
-                .then(x => {
-                    this.$data.error = "";
-                    this.$router.replace("/dashboard");
-                })
-                .catch(x => this.$data.error = "The entered credentials are invalid!");
+const error = ref("");
+const login = ref({ user: "", password: "" });
 
-            // TODO display invalidCredentials
-            // TODO redirect to dashboard on success
-        }
-    }
-})
+onMounted(() => {
+    document.title = "Budgeteer - Login";
+});
+
+function formSubmit(e: MouseEvent) {
+    e.preventDefault();
+    useSessionStore().login(login)
+        .then(x => {
+            error.value = "";
+            useRouter().replace("/dashboard");
+        })
+        .catch(x => error.value = "The entered credentials are invalid!");
+
+    // TODO display invalidCredentials
+    // TODO redirect to dashboard on success
+}
 </script>
 
 <template>
-        <div>
-            <input type="text"      v-model="login.user"     placeholder="Username" class="border-2 border-black rounded-lg block px-2 my-2 w-48" />
-            <input type="password"  v-model="login.password" placeholder="Password" class="border-2 border-black rounded-lg block px-2 my-2 w-48" />
-        </div>
-        <div>{{ error }}</div>
-        <button type="submit" @click="formSubmit" class="bg-blue-300 rounded-lg p-2 w-48">Login</button>
-        <p>
-            New user? <router-link to="/register">Register</router-link> instead!
-        </p>
+    <div>
+        <input
+            type="text"
+            v-model="login.user"
+            placeholder="Username"
+            class="border-2 border-black rounded-lg block px-2 my-2 w-48"
+        />
+        <input
+            type="password"
+            v-model="login.password"
+            placeholder="Password"
+            class="border-2 border-black rounded-lg block px-2 my-2 w-48"
+        />
+    </div>
+    <div>{{ error }}</div>
+    <button type="submit" @click="formSubmit" class="bg-blue-300 rounded-lg p-2 w-48">Login</button>
+    <p>
+        New user?
+        <router-link to="/register">Register</router-link>instead!
+    </p>
 </template>
\ No newline at end of file
diff --git a/web/src/pages/Register.vue b/web/src/pages/Register.vue
index 17b48ab..42dc48c 100644
--- a/web/src/pages/Register.vue
+++ b/web/src/pages/Register.vue
@@ -1,31 +1,20 @@
-<script lang="ts">
-import { defineComponent } from 'vue';
+<script lang="ts" setup>
+import { ref } from 'vue';
 import { useSessionStore } from '../stores/session';
 
-export default defineComponent({
-    data() {
-        return {
-            showPassword: false,
-            error: "",
-            login: {
-                email: "",
-                password: "",
-                name: "",
-            }
-        }
-    },
-    methods: {
-        formSubmit (e : FormDataEvent) {
-            e.preventDefault();
-            useSessionStore().register(this.$data.login)
-                .then(() => this.$data.error = "")
-                .catch(() => this.$data.error = "Something went wrong!");
+const error = ref("");
+const login = ref({ email: "", password: "", name: "" });
+const showPassword = ref(false);
 
-            // TODO display invalidCredentials
-            // TODO redirect to dashboard on success
-        }
-    }
-})
+function formSubmit(e: FormDataEvent) {
+    e.preventDefault();
+    useSessionStore().register(login)
+        .then(() => error.value = "")
+        .catch(() => error.value = "Something went wrong!");
+
+    // TODO display invalidCredentials
+    // TODO redirect to dashboard on success
+}
 </script>
 
 <template>
@@ -38,30 +27,35 @@ export default defineComponent({
                 <v-text-field v-model="login.name" type="text" label="Name" />
             </v-col>
             <v-col cols="6">
-                <v-text-field v-model="login.password" label="Password"
-                    :append-icon="showPassword ? 'mdi-eye' : 'mdi-eye-off'" 
+                <v-text-field
+                    v-model="login.password"
+                    label="Password"
+                    :append-icon="showPassword ? 'mdi-eye' : 'mdi-eye-off'"
                     :type="showPassword ? 'text' : 'password'"
                     @click:append="showPassword = showPassword"
                     :error-message="error"
                     error-count="2"
-                    error />
+                    error
+                />
             </v-col>
             <v-col cols="6">
-                <v-text-field v-model="login.password" label="Repeat password"
-                    :append-icon="showPassword ? 'mdi-eye' : 'mdi-eye-off'" 
+                <v-text-field
+                    v-model="login.password"
+                    label="Repeat password"
+                    :append-icon="showPassword ? 'mdi-eye' : 'mdi-eye-off'"
                     :type="showPassword ? 'text' : 'password'"
                     @click:append="showPassword = showPassword"
                     :error-message="error"
                     error-count="2"
-                    error />
+                    error
+                />
             </v-col>
         </v-row>
-        <div class="form-group">
-            {{ error }}
-        </div>
+        <div class="form-group">{{ error }}</div>
         <v-btn type="submit" @click="formSubmit">Register</v-btn>
-	    <p>
-		    Existing user? <router-link to="/login">Login</router-link> instead!
-    	</p>
+        <p>
+            Existing user?
+            <router-link to="/login">Login</router-link>instead!
+        </p>
     </v-container>
 </template>
diff --git a/web/src/pages/Settings.vue b/web/src/pages/Settings.vue
index d3ee264..5aa2ff6 100644
--- a/web/src/pages/Settings.vue
+++ b/web/src/pages/Settings.vue
@@ -1,65 +1,56 @@
-<script lang="ts">
-import { defineComponent } from "vue"
+<script lang="ts" setup>
+import { computed, defineComponent, onMounted, ref } from "vue"
+import { useRouter } from "vue-router";
 import { DELETE, POST } from "../api";
 import { useBudgetsStore } from "../stores/budget";
 import { useSessionStore } from "../stores/session";
 
-export default defineComponent({
-    data() {
-        return {
-            transactionsFile: undefined as File | undefined,
-            assignmentsFile: undefined as File | undefined
-        }
-    },
-    computed: {
-        filesIncomplete() : boolean {
-            return this.$data.transactionsFile == undefined || this.$data.assignmentsFile == undefined;
-        }
-    },
-    mounted() {
-        document.title = "Budgeteer - Settings";
-    },
-    methods: {
-        gotAssignments(e : Event) {
-            const input = (<HTMLInputElement>e.target);
-            if(input.files != null)
-                this.$data.assignmentsFile = input.files[0];
-        },
-        gotTransactions(e : Event) {
-            const input = (<HTMLInputElement>e.target);
-            if(input.files != null)
-                this.$data.transactionsFile = input.files[0];
-        },
-        deleteBudget() {
-            const currentBudgetID = useBudgetsStore().CurrentBudgetID;
-            if (currentBudgetID == null)
-                return;
+const transactionsFile = ref<File | undefined>(undefined);
+const assignmentsFile = ref<File | undefined>(undefined);
 
-            DELETE("/budget/" + currentBudgetID);
+const filesIncomplete = computed(() => transactionsFile.value == undefined || assignmentsFile.value == undefined);
+onMounted(() => {
+    document.title = "Budgeteer - Settings";
+});
 
-            const budgetStore = useSessionStore();
-            budgetStore.Budgets.delete(currentBudgetID);
-            this.$router.push("/")
-        },
-        clearBudget() {
-            const currentBudgetID = useBudgetsStore().CurrentBudgetID;
-            POST("/budget/" + currentBudgetID + "/settings/clear", null)
-        },
-        cleanNegative() {
-            // <a href="/budget/{{.Budget.ID}}/settings/clean-negative">Fix all historic negative category-balances</a>
-        },
-        ynabImport() {
-            if (this.$data.transactionsFile == undefined || this.$data.assignmentsFile == undefined)
-                return
+function gotAssignments(e: Event) {
+    const input = (<HTMLInputElement>e.target);
+    if (input.files != null)
+        assignmentsFile.value = input.files[0];
+}
+function gotTransactions(e: Event) {
+    const input = (<HTMLInputElement>e.target);
+    if (input.files != null)
+        transactionsFile.value = input.files[0];
+};
+function deleteBudget() {
+    const currentBudgetID = useBudgetsStore().CurrentBudgetID;
+    if (currentBudgetID == null)
+        return;
 
-            let formData = new FormData();
-            formData.append("transactions", this.$data.transactionsFile);
-            formData.append("assignments", this.$data.assignmentsFile);
-            const budgetStore = useBudgetsStore();
-            budgetStore.ImportYNAB(formData);
-        }
-    }
-})
+    DELETE("/budget/" + currentBudgetID);
+
+    const budgetStore = useSessionStore();
+    budgetStore.Budgets.delete(currentBudgetID);
+    useRouter().push("/")
+};
+function clearBudget() {
+    const currentBudgetID = useBudgetsStore().CurrentBudgetID;
+    POST("/budget/" + currentBudgetID + "/settings/clear", null)
+};
+function cleanNegative() {
+    // <a href="/budget/{{.Budget.ID}}/settings/clean-negative">Fix all historic negative category-balances</a>
+};
+function ynabImport() {
+    if (transactionsFile.value == undefined || assignmentsFile.value == undefined)
+        return
+
+    let formData = new FormData();
+    formData.append("transactions", transactionsFile.value);
+    formData.append("assignments", assignmentsFile.value);
+    const budgetStore = useBudgetsStore();
+    budgetStore.ImportYNAB(formData);
+};
 </script>
 
 <template>
@@ -124,10 +115,7 @@ export default defineComponent({
                     </label>
 
                     <v-card-actions class="justify-center">
-                        <v-btn
-                            :disabled="filesIncomplete"
-                            @click="ynabImport"
-                        >Importieren</v-btn>
+                        <v-btn :disabled="filesIncomplete" @click="ynabImport">Importieren</v-btn>
                     </v-card-actions>
                 </v-card>
             </v-col>