diff --git a/client/src/App.tsx b/client/src/App.tsx
index 1eed593..eb66400 100644
--- a/client/src/App.tsx
+++ b/client/src/App.tsx
@@ -18,8 +18,6 @@ import Loader from './components/Loader';
 import { getHumanDateTime, isInTheFuture } from './Utils';
 import NoteModal from './components/modals/NoteModal';
 import { useEasterEgg } from './context/eggs';
-import { Link } from 'react-router';
-import { STATS_URL } from './AppRoutes';
 import { ClientData, Food, PizzaOrder, DepartureTime, PizzaDayState, Restaurant, RestaurantDayMenu, RestaurantDayMenuMap, LunchChoice, UserLunchChoice, PizzaVariant, getData, getEasterEggImage, addPizza, removePizza, updatePizzaDayNote, createPizzaDay, deletePizzaDay, lockPizzaDay, unlockPizzaDay, finishOrder, finishDelivery, addChoice, jdemeObed, removeChoices, removeChoice, updateNote, changeDepartureTime } from '../../types';
 import { getLunchChoiceName } from './enums';
 
diff --git a/client/src/components/modals/PizzaCalculatorModal.tsx b/client/src/components/modals/PizzaCalculatorModal.tsx
index 774426b..e199a7a 100644
--- a/client/src/components/modals/PizzaCalculatorModal.tsx
+++ b/client/src/components/modals/PizzaCalculatorModal.tsx
@@ -37,9 +37,7 @@ export default function PizzaCalculatorModal({ isOpen, onClose }: Readonly<Props
         // 1. pizza
         if (diameter1Ref.current?.value) {
             const diameter1 = parseInt(diameter1Ref.current?.value);
-            if (!r.pizza1) {
-                r.pizza1 = {};
-            }
+            r.pizza1 ??= {};
             if (diameter1 && diameter1 > 0) {
                 r.pizza1.diameter = diameter1;
                 r.pizza1.area = Math.PI * Math.pow(diameter1 / 2, 2);
@@ -59,9 +57,7 @@ export default function PizzaCalculatorModal({ isOpen, onClose }: Readonly<Props
         // 2. pizza
         if (diameter2Ref.current?.value) {
             const diameter2 = parseInt(diameter2Ref.current?.value);
-            if (!r.pizza2) {
-                r.pizza2 = {};
-            }
+            r.pizza2 ??= {};
             if (diameter2 && diameter2 > 0) {
                 r.pizza2.diameter = diameter2;
                 r.pizza2.area = Math.PI * Math.pow(diameter2 / 2, 2);
diff --git a/server/src/notifikace.ts b/server/src/notifikace.ts
index 8e6ef83..9663181 100644
--- a/server/src/notifikace.ts
+++ b/server/src/notifikace.ts
@@ -8,49 +8,6 @@ import { NotifikaceData, NotifikaceInput } from '../../types';
 const ENVIRONMENT = process.env.NODE_ENV ?? 'production';
 dotenv.config({ path: path.resolve(__dirname, `../.env.${ENVIRONMENT}`) });
 
-// const gotifyDataRaw = process.env.GOTIFY_SERVERS_AND_KEYS || "{}";
-// const gotifyData: GotifyServer[] = JSON.parse(gotifyDataRaw);
-// export const gotifyCall = async (data: NotififaceInput, gotifyServers?: GotifyServer[]): Promise<any[]> => {
-//     if (!Array.isArray(gotifyServers)) {
-//         return []
-//     }
-//     const urls = gotifyServers.flatMap(gotifyServer =>
-//         gotifyServer.api_keys.map(apiKey => `${gotifyServer.server}/message?token=${apiKey}`));
-//
-//     const dataPayload = {
-//         title: "Luncher",
-//         message: `${data.udalost} - spustil:${data.user}`,
-//         priority: 7,
-//     };
-//
-//     const headers = { "Content-Type": "application/json" };
-//
-//     const promises = urls.map(url =>
-//         axios.post(url, dataPayload, { headers }).then(response => {
-//             response.data = {
-//                 success: true,
-//                 message: "Notifikace doručena",
-//             };
-//             return response;
-//         }).catch(error => {
-//             if (axios.isAxiosError(error)) {
-//                 const axiosError = error as AxiosError;
-//                 if (axiosError.response) {
-//                     axiosError.response.data = {
-//                         success: false,
-//                         message: "fail",
-//                     };
-//                     console.log(error)
-//                     return axiosError.response;
-//                 }
-//             }
-//             // Handle unknown error without a response
-//             console.log(error, "unknown error");
-//         })
-//     );
-//     return promises;
-// };
-
 export const ntfyCall = async (data: NotifikaceInput) => {
     const url = process.env.NTFY_HOST
     const username = process.env.NTFY_USERNAME;
diff --git a/server/src/pizza.ts b/server/src/pizza.ts
index ccf74db..f1c7d48 100644
--- a/server/src/pizza.ts
+++ b/server/src/pizza.ts
@@ -96,9 +96,7 @@ export async function addPizzaOrder(login: string, pizza: Pizza, size: PizzaSize
             totalPrice: 0,
             hasQr: false,
         }
-        if (!clientData.pizzaDay.orders) {
-            clientData.pizzaDay.orders = [];
-        }
+        clientData.pizzaDay.orders ??= [];
         clientData.pizzaDay.orders.push(order);
     }
     const pizzaOrder: PizzaVariant = {
@@ -107,9 +105,7 @@ export async function addPizzaOrder(login: string, pizza: Pizza, size: PizzaSize
         size: size.size,
         price: size.price,
     }
-    if (!order.pizzaList) {
-        order.pizzaList = [];
-    }
+    order.pizzaList ??= [];
     order.pizzaList.push(pizzaOrder);
     order.totalPrice += pizzaOrder.price;
     await storage.setData(today, clientData);
diff --git a/server/src/restaurants.ts b/server/src/restaurants.ts
index 9d6f681..ca502fd 100644
--- a/server/src/restaurants.ts
+++ b/server/src/restaurants.ts
@@ -300,9 +300,7 @@ export const getMenuTechTower = async (firstDayOfWeek: Date, mock: boolean = fal
                 price = `${split.slice(1)[0]}\xA0Kč`
                 name = split[0].replace('•', '');
             }
-            if (result[currentDayIndex] == null) {
-                result[currentDayIndex] = [];
-            }
+            result[currentDayIndex] ??= [];
             result[currentDayIndex].push({
                 amount: '-',
                 name,
diff --git a/server/src/routes/foodRoutes.ts b/server/src/routes/foodRoutes.ts
index 0f2236c..8817ded 100644
--- a/server/src/routes/foodRoutes.ts
+++ b/server/src/routes/foodRoutes.ts
@@ -1,6 +1,6 @@
 import express, { Request, Response } from "express";
 import { getLogin, getTrusted } from "../auth";
-import { addChoice, getDateForWeekIndex, getToday, removeChoice, removeChoices, updateDepartureTime, updateNote, getRestaurantMenu, fetchRestaurantWeekMenuData, saveRestaurantWeekMenu } from "../service";
+import { addChoice, getDateForWeekIndex, getToday, removeChoice, removeChoices, updateDepartureTime, updateNote, fetchRestaurantWeekMenuData, saveRestaurantWeekMenu } from "../service";
 import { getDayOfWeekIndex, parseToken, getFirstWorkDayOfWeek } from "../utils";
 import { getWebsocket } from "../websocket";
 import { callNotifikace } from "../notifikace";
diff --git a/server/src/service.ts b/server/src/service.ts
index 4de8c60..01ae6fa 100644
--- a/server/src/service.ts
+++ b/server/src/service.ts
@@ -381,9 +381,7 @@ export async function addChoice(login: string, trusted: boolean, locationKey: Lu
         removeChoiceIfPresent(login, usedDate, locationKey);
     }
     // TODO vytáhnout inicializaci "prázdné struktury" do vlastní funkce
-    if (!(data.choices[locationKey])) {
-        data.choices[locationKey] = {}
-    }
+    data.choices[locationKey] ??= {};
     if (!(login in data.choices[locationKey])) {
         if (!data.choices[locationKey]) {
             data.choices[locationKey] = {}
diff --git a/server/src/storage/StorageInterface.ts b/server/src/storage/StorageInterface.ts
index ba034d5..8956456 100644
--- a/server/src/storage/StorageInterface.ts
+++ b/server/src/storage/StorageInterface.ts
@@ -5,6 +5,12 @@
  * Postupem času lze předělat pro efektivnější využití Redis.
  */
 export interface StorageInterface {
+
+    /**
+     * Inicializuje úložiště, pokud je potřeba (např. připojení k databázi).
+     */
+    initialize?(): Promise<void>;
+
     /**
      * Vrátí příznak, zda existují data pro předaný klíč.
      * @param key klíč, pro který zjišťujeme data (typicky datum)
diff --git a/server/src/storage/index.ts b/server/src/storage/index.ts
index 9841a12..3ac8483 100644
--- a/server/src/storage/index.ts
+++ b/server/src/storage/index.ts
@@ -19,6 +19,13 @@ if (!process.env.STORAGE || process.env.STORAGE?.toLowerCase() === JSON_KEY) {
     throw Error("Nepodporovaná hodnota proměnné STORAGE: " + process.env.STORAGE + ", podporované jsou 'json' nebo 'redis'");
 }
 
+(async () => {
+    if (storage.initialize) {
+        await storage.initialize();
+    }
+})();
+
+
 export default function getStorage(): StorageInterface {
     return storage;
 }
diff --git a/server/src/storage/redis.ts b/server/src/storage/redis.ts
index 966236a..f92720e 100644
--- a/server/src/storage/redis.ts
+++ b/server/src/storage/redis.ts
@@ -11,6 +11,9 @@ export default class RedisStorage implements StorageInterface {
         const HOST = process.env.REDIS_HOST ?? 'localhost';
         const PORT = process.env.REDIS_PORT ?? 6379;
         client = createClient({ url: `redis://${HOST}:${PORT}` });
+    }
+
+    async initialize() {
         client.connect();
     }
 
diff --git a/server/src/voting.ts b/server/src/voting.ts
index a0426ce..db0d147 100644
--- a/server/src/voting.ts
+++ b/server/src/voting.ts
@@ -29,9 +29,7 @@ export async function getUserVotes(login: string) {
  */
 export async function updateFeatureVote(login: string, option: FeatureRequest, active: boolean): Promise<VotingData> {
     let data = await storage.getData<VotingData>(STORAGE_KEY);
-    if (data == null) {
-        data = {};
-    }
+    data ??= {};
     if (!(login in data)) {
         data[login] = [];
     }