diff --git a/package.json b/package.json
index 6a76e52..6e2c18e 100644
--- a/package.json
+++ b/package.json
@@ -44,14 +44,15 @@
   },
   "devDependencies": {
     "@nodesecure/eslint-config": "^1.9.0",
+    "@openally/config.typescript": "^1.0.3",
     "@types/jest": "^29.5.12",
+    "c8": "^10.1.2",
     "dotenv": "^16.4.5",
+    "glob": "^11.0.0",
     "jest": "^29.7.0",
     "testcontainers": "^10.10.0",
     "ts-jest": "^29.2.4",
-    "typescript": "^5.5.4",
     "tsx": "^4.7.0",
-    "glob": "^11.0.0",
-    "c8": "^10.1.2"
+    "typescript": "^5.5.4"
   }
 }
diff --git a/src/class/eventManagement/dispatcher.class.ts b/src/class/eventManagement/dispatcher.class.ts
index 65e36c9..4776dee 100644
--- a/src/class/eventManagement/dispatcher.class.ts
+++ b/src/class/eventManagement/dispatcher.class.ts
@@ -108,20 +108,20 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
   private backupDispatcherTransactionStore: TransactionStore<"dispatcher">;
   private backupIncomerTransactionStore: TransactionStore<"incomer">;
 
-  private transactionHandler: TransactionHandler;
+  private transactionHandler: TransactionHandler<T>;
 
   private logger: Logger;
   private incomerChannelHandler: IncomerChannelHandler<T>;
   private activeChannels = new Set<string>();
 
   private pingInterval: number;
-  private pingIntervalTimer: NodeJS.Timeout;
+  private pingIntervalTimer: NodeJS.Timeout | undefined;
   private checkLastActivityInterval: number;
-  private checkLastActivityIntervalTimer: NodeJS.Timeout;
+  private checkLastActivityIntervalTimer: NodeJS.Timeout | undefined;
   private resolveTransactionInterval: number;
-  private checkDispatcherStateInterval: NodeJS.Timeout;
-  private resetCheckLastActivityTimeout: NodeJS.Timeout;
-  private resolveTransactionsInterval: NodeJS.Timeout;
+  private checkDispatcherStateInterval: NodeJS.Timeout | undefined;
+  private resetCheckLastActivityTimeout: NodeJS.Timeout | undefined;
+  private resolveTransactionsInterval: NodeJS.Timeout | undefined;
   private idleTime: number;
   private minTimeout = 0;
   // Arbitrary value according to fastify default pluginTimeout
@@ -288,6 +288,10 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
   }
 
   public async initialize() {
+    if (!this.subscriber) {
+      throw new Error(`redis subscriber not available`);
+    }
+
     await this.subscriber.subscribe(this.dispatcherChannelName);
     this.subscriber.on("message", (channel, message) => {
       this.handleMessages(channel, message).catch((error) => this.logger.error({ error: error.stack }));
@@ -333,7 +337,7 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
     this.eventsHandler.removeAllListeners();
     this.removeAllListeners();
 
-    await this.subscriber.unsubscribe(
+    await this.subscriber?.unsubscribe(
       this.dispatcherChannelName,
       ...this.incomerChannelHandler.channels.keys(),
       ...this.activeChannels.values()
@@ -351,7 +355,7 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
     try {
       parsedMessage = JSON.parse(message);
     }
-    catch (error) {
+    catch (error: any) {
       this.logger.error({ channel, error: error.message });
 
       return;
@@ -383,7 +387,7 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
 
       await this.eventsHandler.handleEvents(channel, parsedMessage);
     }
-    catch (error) {
+    catch (error: any) {
       this.logger.error({
         channel,
         message: parsedMessage,
@@ -485,7 +489,7 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
           dispatcherToRemove ? this.removeNonActives([dispatcherToRemove]) : () => void 0
         ]);
       }
-      catch (error) {
+      catch (error: any) {
         this.logger.error({ error: error.stack }, `${this.selfProvidedUUID} failed while taking back the lead`);
 
         return;
@@ -529,7 +533,7 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
 
     const inactiveIncomers = await this.incomerStore.getNonActives();
 
-    const toResolve = [];
+    const toResolve: Promise<void>[] = [];
 
     let index = 0;
     for (const inactive of inactiveIncomers) {
@@ -545,10 +549,10 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
         .map(([transactionId]) => transactionId);
 
       if (recentPingTransactionKeys.length > 0) {
-        toResolve.push(Promise.all([
+        toResolve.push(...[
           this.incomerStore.updateIncomerState(inactive.providedUUID),
           transactionStore.deleteTransactions(recentPingTransactionKeys)
-        ]));
+        ]);
 
         inactiveIncomers.splice(index, 1);
       }
@@ -563,7 +567,7 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
 
   private async ping() {
     const incomers = await this.incomerStore.getIncomers();
-    const pingToResolve = [];
+    const pingToResolve: Promise<void>[] = [];
     const concernedIncomers: string[] = [];
     for (const incomer of incomers) {
       if (incomer === null) {
@@ -615,14 +619,16 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
   }
 
   private async removeNonActives(inactiveIncomers: RegisteredIncomer[]) {
-    const toHandle = [];
+    const toHandle: Promise<void>[] = [];
 
     for (const inactive of inactiveIncomers) {
-      toHandle.push(Promise.all([
+      toHandle.push(...[
         this.incomerStore.deleteIncomer(inactive.providedUUID),
-        this.transactionHandler.resolveInactiveIncomerTransactions(inactive),
-        this.activeChannels.add(`${inactive.prefix ? `${inactive.prefix}-` : ""}${inactive.providedUUID}`)
-      ]));
+        this.transactionHandler.resolveInactiveIncomerTransactions(inactive)
+      ]);
+      this.activeChannels.add(
+        `${inactive.prefix ? `${inactive.prefix}-` : ""}${inactive.providedUUID}`
+      );
     }
 
     await Promise.all(toHandle);
@@ -845,7 +851,7 @@ export class Dispatcher<T extends GenericEvent = GenericEvent> extends EventEmit
     for (const incomer of concernedIncomers) {
       const relatedEvent = incomer.eventsSubscribe.find((subscribedEvent) => subscribedEvent.name === eventName);
 
-      if (!relatedEvent.horizontalScale &&
+      if (relatedEvent && !relatedEvent.horizontalScale &&
         filteredConcernedIncomers.find(
           (filteredConcernedIncomer) => filteredConcernedIncomer.eventsSubscribe.find(
             (subscribedEvent) => subscribedEvent.name === relatedEvent.name && filteredConcernedIncomer.name === incomer.name
diff --git a/src/class/eventManagement/dispatcher/events.class.ts b/src/class/eventManagement/dispatcher/events.class.ts
index 05e2a5f..10f9bfa 100644
--- a/src/class/eventManagement/dispatcher/events.class.ts
+++ b/src/class/eventManagement/dispatcher/events.class.ts
@@ -110,7 +110,7 @@ export class EventsHandler<T extends GenericEvent> extends EventEmitter {
   readonly dispatcherChannelName: string;
 
   #eventsValidationFn: eventsValidationFn<T>;
-  #customValidationCbFn: customValidationCbFn<T>;
+  #customValidationCbFn: customValidationCbFn<T> | undefined;
 
   #logger: Logger;
   #standardLogFn: StandardLog<T>;
@@ -169,7 +169,7 @@ export class EventsHandler<T extends GenericEvent> extends EventEmitter {
       try {
         this.dispatcherChannelMessagesSchemaValidation(event);
       }
-      catch (error) {
+      catch (error: any) {
         this.#logger.error(this.#standardLogFn({
           ...event,
           redisMetadata: {
diff --git a/src/class/eventManagement/dispatcher/incomer-channel.class.ts b/src/class/eventManagement/dispatcher/incomer-channel.class.ts
index 49147dc..44109ee 100644
--- a/src/class/eventManagement/dispatcher/incomer-channel.class.ts
+++ b/src/class/eventManagement/dispatcher/incomer-channel.class.ts
@@ -57,7 +57,7 @@ export class IncomerChannelHandler<
   get(
     uuid: string
   ): ChannelMessages<T> | null {
-    return this.channels.get(uuid);
+    return this.channels.get(uuid) ?? null;
   }
 
   async remove(
@@ -67,7 +67,7 @@ export class IncomerChannelHandler<
       return;
     }
 
-    await this.subscriber.unsubscribe(uuid);
+    await this.subscriber?.unsubscribe(uuid);
     this.channels.delete(uuid);
   }
 }
diff --git a/src/class/eventManagement/dispatcher/transaction-handler.class.ts b/src/class/eventManagement/dispatcher/transaction-handler.class.ts
index 97d6846..c10a7be 100644
--- a/src/class/eventManagement/dispatcher/transaction-handler.class.ts
+++ b/src/class/eventManagement/dispatcher/transaction-handler.class.ts
@@ -221,7 +221,7 @@ export class TransactionHandler<T extends GenericEvent = GenericEvent> {
               return this.dispatcherTransactionStore.deleteTransaction(relatedPingTransactionId);
             }
 
-            const relatedIncomerPingTransaction = incomerPingTransactions.get(relatedPingTransactionId);
+            const relatedIncomerPingTransaction = incomerPingTransactions.get(relatedPingTransactionId)!;
 
             return Promise.all([
               inactiveIncomerTransactionStore.deleteTransaction(relatedIncomerPingTransaction.redisMetadata.transactionId),
@@ -336,7 +336,9 @@ export class TransactionHandler<T extends GenericEvent = GenericEvent> {
         relatedHandlerTransaction,
         relatedHandlerTransaction.redisMetadata.transactionId
       ),
-      incomerToRemoveTransactionStore.deleteTransaction(relatedHandlerTransaction.redisMetadata.transactionId)
+      incomerToRemoveTransactionStore.deleteTransaction(
+        relatedHandlerTransaction.redisMetadata.transactionId
+      )
     ]);
 
     this.logger.debug(
@@ -683,7 +685,7 @@ export class TransactionHandler<T extends GenericEvent = GenericEvent> {
   private async resolveSpreadTransactions(options: ResolveTransactions): Promise<ResolveTransactions> {
     const { incomers, backupIncomerTransactions, dispatcherTransactions } = options;
 
-    const toResolve = [];
+    const toResolve: any[] = [];
     const incomerStateToUpdate = new Set<string>();
 
     for (const [dispatcherTransactionId, dispatcherTransaction] of dispatcherTransactions.entries()) {
@@ -738,7 +740,7 @@ export class TransactionHandler<T extends GenericEvent = GenericEvent> {
       }
 
       for (const filteredIncomerTransaction of filteredIncomerTransactions) {
-        const filteredIncomerTransactionId = filteredIncomerTransaction.redisMetadata.transactionId;
+        const filteredIncomerTransactionId = filteredIncomerTransaction.redisMetadata.transactionId!;
 
         if (dispatcherTransaction.redisMetadata.mainTransaction) {
           // Only in case of ping event
@@ -794,7 +796,7 @@ export class TransactionHandler<T extends GenericEvent = GenericEvent> {
   private async resolveMainTransactions(options: ResolveTransactions) {
     const { incomers, backupIncomerTransactions, dispatcherTransactions } = options;
 
-    const toResolve = [];
+    const toResolve: Promise<void>[] = [];
     const incomerStateToUpdate = new Set<string>();
 
     for (const incomer of incomers) {
@@ -856,7 +858,7 @@ export class TransactionHandler<T extends GenericEvent = GenericEvent> {
       }
     }
 
-    toResolve.push([...incomerStateToUpdate.values()].map(
+    toResolve.push(...[...incomerStateToUpdate.values()].map(
       (incomerId) => this.incomerStore.updateIncomerState(incomerId))
     );
 
diff --git a/src/class/eventManagement/externals.class.ts b/src/class/eventManagement/externals.class.ts
index 2883379..a0edc9c 100644
--- a/src/class/eventManagement/externals.class.ts
+++ b/src/class/eventManagement/externals.class.ts
@@ -24,7 +24,6 @@ export class Externals<T extends GenericEvent = GenericEvent> {
     });
 
     this.dispatcher = new Dispatcher({
-      name: "pulsar",
       ...options,
       pingInterval: Number(process.env.MYUNISOFT_DISPATCHER_PING) || undefined,
       checkLastActivityInterval: Number(process.env.MYUNISOFT_DISPATCHER_ACTIVITY_CHECK) || undefined,
diff --git a/src/class/eventManagement/incomer.class.ts b/src/class/eventManagement/incomer.class.ts
index 9fa80d4..52a979b 100644
--- a/src/class/eventManagement/incomer.class.ts
+++ b/src/class/eventManagement/incomer.class.ts
@@ -145,8 +145,8 @@ export class Incomer <
   private checkTransactionsStateInterval: NodeJS.Timeout;
   private checkDispatcherStateTimeout: NodeJS.Timeout;
   private lastPingDate: number;
-  private eventsValidationFn: Map<string, ValidateFunction<Record<string, any>> | NestedValidationFunctions>;
-  private customValidationCbFn: (event: T) => void;
+  private eventsValidationFn: Map<string, ValidateFunction<Record<string, any>> | NestedValidationFunctions> | undefined;
+  private customValidationCbFn: ((event: T) => void) | undefined;
 
   public externals: Externals<T> | undefined;
 
@@ -557,7 +557,7 @@ export class Incomer <
         await this.handleIncomerMessages(channel, formattedMessage);
       }
     }
-    catch (error) {
+    catch (error: any) {
       this.logger.error({ channel, message: formattedMessage, error: error.stack });
     }
   }
@@ -588,7 +588,7 @@ export class Incomer <
           throw new Error("Unknown event");
         });
     }
-    catch (error) {
+    catch (error: any) {
       this.logger.error({
         channel: "dispatcher",
         error: error.stack,
@@ -770,29 +770,27 @@ export class Incomer <
       instance: "incomer"
     });
 
-    const transactionToUpdate = [];
+    const transactionToUpdate: Promise<any>[] = [];
     for (const [transactionId, transaction] of oldTransactions.entries()) {
       if (transaction.name === "REGISTER") {
-        transactionToUpdate.push([
-          Promise.all([
-            this.defaultIncomerTransactionStore.deleteTransaction(transactionId),
-            this.newTransactionStore.setTransaction({
-              ...transaction,
-              redisMetadata: {
-                ...transaction.redisMetadata,
-                origin: this.providedUUID,
-                relatedTransaction: message.redisMetadata.transactionId,
-                published: true,
-                resolved: true
-              }
-            } as Transaction<"incomer">, transactionId)
-          ])
+        transactionToUpdate.push(...[
+          this.defaultIncomerTransactionStore.deleteTransaction(transactionId),
+          this.newTransactionStore.setTransaction({
+            ...transaction,
+            redisMetadata: {
+              ...transaction.redisMetadata,
+              origin: this.providedUUID,
+              relatedTransaction: message.redisMetadata.transactionId,
+              published: true,
+              resolved: true
+            }
+          } as Transaction<"incomer">, transactionId)
         ]);
 
         continue;
       }
 
-      transactionToUpdate.push(Promise.all([
+      transactionToUpdate.push(...[
         this.defaultIncomerTransactionStore.deleteTransaction(transactionId),
         this.newTransactionStore.setTransaction({
           ...transaction,
@@ -801,7 +799,7 @@ export class Incomer <
             origin: this.providedUUID
           }
         })
-      ]));
+      ]);
     }
 
     await Promise.all(transactionToUpdate);
diff --git a/src/class/store/incomer.class.ts b/src/class/store/incomer.class.ts
index d77fb52..bc58f19 100644
--- a/src/class/store/incomer.class.ts
+++ b/src/class/store/incomer.class.ts
@@ -93,7 +93,9 @@ export class IncomerStore extends KVPeer<RegisteredIncomer> {
       const foundIncomers = await Promise.all(incomerKeys.map(
         (incomerKey) => this.getValue(incomerKey)
       ));
-      foundIncomers.forEach((incomer) => incomers.add(incomer));
+      foundIncomers
+        .filter((incomer) => incomer !== null)
+        .forEach((incomer) => incomers.add(incomer));
     }
 
     return incomers;
@@ -101,7 +103,7 @@ export class IncomerStore extends KVPeer<RegisteredIncomer> {
 
   getIncomer(
     incomerId: string
-  ): Promise<RegisteredIncomer> {
+  ): Promise<RegisteredIncomer | null> {
     return this.getValue(
       this.#buildIncomerKey(incomerId)
     );
diff --git a/src/class/store/transaction.class.ts b/src/class/store/transaction.class.ts
index 791293c..04a6654 100644
--- a/src/class/store/transaction.class.ts
+++ b/src/class/store/transaction.class.ts
@@ -157,7 +157,7 @@ export class TransactionStore<
           transaction !== null &&
           (transaction.redisMetadata && "transactionId" in transaction.redisMetadata)
         ) {
-          mappedTransactions.set(transaction.redisMetadata.transactionId, transaction);
+          mappedTransactions.set(transaction.redisMetadata.transactionId!, transaction);
         }
       }
     }
diff --git a/src/utils/index.ts b/src/utils/index.ts
index a124287..bc456e5 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -2,7 +2,7 @@ export * from "./defaultStandardLog.js";
 export * from "./ajv.js";
 
 export function handleLoggerMode(
-  mode: string
+  mode: string | undefined
 ): string {
   return (mode === "info" || mode === "debug" || mode === "warn" || mode === "silent") ? mode : "info";
 }
diff --git a/tsconfig.json b/tsconfig.json
index 0a510f4..fd5adea 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,37 +1,19 @@
 {
-    "compilerOptions": {
-      /* Base Options: */
-      "target": "ES2022",
-      "module": "commonjs",
-      "allowJs": true,
-      "moduleResolution": "node",
-      "resolveJsonModule": true,
-      "esModuleInterop": true,
-      "moduleDetection": "force",
-      "isolatedModules": true,
-      "verbatimModuleSyntax": false,
-
-      /* Strictness */
-      "strict": false,
-      "noUncheckedIndexedAccess": false,
-      "noImplicitOverride": true,
-
-      /* Others */
-      "sourceMap": true,
-      "declaration": true,
-      "declarationMap": true,
-      "lib": ["es2022"],
-      "baseUrl": "./src",
-      "outDir": "./dist",
-      "types": ["jest", "node"],
-      "paths": {
-        "#src/*": ["./src/*"]
-      },
-      "typeRoots": ["node_modules/@types", "./types"]
-    },
-    "include": [
-      "src/**/**/*.ts",
-      "./types"
-    ],
-    "exclude": ["node_modules", "example"]
+  "extends": "@openally/config.typescript/cjs",
+  "compilerOptions": {
+    "strictNullChecks": false,
+    "baseUrl": "./src",
+    "outDir": "./dist",
+    "types": [
+      "jest",
+      "node"
+    ]
+  },
+  "include": [
+    "src"
+  ],
+  "exclude": [
+    "node_modules",
+    "example"
+  ]
 }