diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 1b168dd1c239..ea1df83e17d1 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -2,9 +2,11 @@ name: Continuous Integration
 
 on:
   push:
-    branches: [master]
+    branches:
+      - master
   pull_request:
-    branches: [master]
+    branches:
+      - master
   schedule:
     - cron: '0 2 * * 1' # At 02:00 on Monday
 
@@ -39,11 +41,9 @@ jobs:
       - name: Bootstrap project
         run: |
           npm ci --ignore-scripts
-          npm run postinstall
+          npx lerna bootstrap
       - name: Build project
-        run: |
-          npm run clean
-          npm run build
+        run: npm run build
       - uses: Yuri6037/Action-FakeTTY@v1.1
       - name: Run tests
         run: faketty npm test --ignore-scripts
@@ -94,9 +94,7 @@ jobs:
       - name: Bootstrap project
         run: |
           npm ci --ignore-scripts
-          npm run postinstall
-      - name: Build project
-        run: npm run build
+          npx lerna bootstrap
       - name: Verify code linting
         run: npm run lint
       - name: Verify package metadata
@@ -131,7 +129,7 @@ jobs:
       - name: Bootstrap project
         run: |
           npm ci --ignore-scripts
-          npm run postinstall
+          npx lerna bootstrap
       - name: Build project
         run: npm run build
       - name: Verify doc changes
diff --git a/extensions/socketio/src/socketio.server.ts b/extensions/socketio/src/socketio.server.ts
index 1a5915ed92d2..6f4c668dfb24 100644
--- a/extensions/socketio/src/socketio.server.ts
+++ b/extensions/socketio/src/socketio.server.ts
@@ -152,9 +152,9 @@ export class SocketIoServer extends Context {
       this.app.bind(getNamespaceKeyForName(meta.name)).to(nsp);
     }
 
-    nsp.on('connection', socket =>
-      this.createSocketHandler(controllerClass)(socket),
-    );
+    nsp.on('connection', async socket => {
+      await this.createSocketHandler(controllerClass)(socket);
+    });
     return nsp;
   }
 
@@ -164,7 +164,7 @@ export class SocketIoServer extends Context {
    */
   private createSocketHandler(
     controllerClass: Constructor<object>,
-  ): (socket: Socket) => void {
+  ): (socket: Socket) => Promise<void> {
     return async socket => {
       debug(
         'SocketIo connected: id=%s namespace=%s',
diff --git a/packages/booter-lb3app/src/__tests__/acceptance/booter-lb3app.acceptance.ts b/packages/booter-lb3app/src/__tests__/acceptance/booter-lb3app.acceptance.ts
index 402418af143d..5410e4c96e18 100644
--- a/packages/booter-lb3app/src/__tests__/acceptance/booter-lb3app.acceptance.ts
+++ b/packages/booter-lb3app/src/__tests__/acceptance/booter-lb3app.acceptance.ts
@@ -52,7 +52,7 @@ describe('booter-lb3app', () => {
         },
       });
 
-      const schemas = (spec.components ?? {}).schemas ?? {};
+      const schemas = spec.components?.schemas ?? {};
       expect(schemas._new_CoffeeShop)
         .to.have.property('properties')
         .eql({
@@ -68,7 +68,7 @@ describe('booter-lb3app', () => {
 
     it('includes the target model as a property of the source model in a relation', async () => {
       const spec = await app.restServer.getApiSpec();
-      const schemas = (spec.components ?? {}).schemas ?? {};
+      const schemas = spec.components?.schemas ?? {};
 
       expect(schemas.CoffeeShop)
         .to.have.property('properties')
diff --git a/packages/eslint-config/eslintrc.js b/packages/eslint-config/eslintrc.js
index 8df08e7a8188..d3768df3e1eb 100644
--- a/packages/eslint-config/eslintrc.js
+++ b/packages/eslint-config/eslintrc.js
@@ -3,7 +3,7 @@
 // This file is licensed under the MIT License.
 // License text available at https://opensource.org/licenses/MIT
 
-const fs = require('fs');
+const fs = require('node:fs');
 
 /**
  * Default ESLint configuration for LoopBack
@@ -243,6 +243,12 @@ module.exports = {
         selector: 'typeLike',
         format: ['PascalCase'],
       },
+
+      {
+        selector: 'objectLiteralProperty',
+        format: null,
+        modifiers: ['requiresQuotes'],
+      },
     ],
   },
 
diff --git a/packages/express/src/__tests__/acceptance/test-helpers.ts b/packages/express/src/__tests__/acceptance/test-helpers.ts
index 54ba1fea9e60..a24b6b175bc0 100644
--- a/packages/express/src/__tests__/acceptance/test-helpers.ts
+++ b/packages/express/src/__tests__/acceptance/test-helpers.ts
@@ -62,6 +62,7 @@ export class TestHelper {
       }
     }
     const binding = this.app.controller(MyController);
+
     const handler: ExpressRequestHandler = async (req, res, next) => {
       try {
         const controller = await this.app.get<MyController>(binding.key);
diff --git a/packages/monorepo/lib/config-lerna-scopes.js b/packages/monorepo/lib/config-lerna-scopes.js
index dfc0ee5d1bd4..ee892fb2422f 100644
--- a/packages/monorepo/lib/config-lerna-scopes.js
+++ b/packages/monorepo/lib/config-lerna-scopes.js
@@ -14,7 +14,7 @@ const {getPackages, runMain} = require('./script-util');
 
 module.exports = {
   rules: {
-    // https://github.com/marionebl/commitlint/blob/master/docs/reference-rules.md
+    // eslint-disable-next-line @typescript-eslint/naming-convention
     'scope-enum': async ctx => [2, 'always', await getPackageNames(ctx)],
   },
 };
diff --git a/packages/openapi-v3/src/__tests__/integration/controller-spec.integration.ts b/packages/openapi-v3/src/__tests__/integration/controller-spec.integration.ts
index 6e5d602c9f93..0ccbab1eb664 100644
--- a/packages/openapi-v3/src/__tests__/integration/controller-spec.integration.ts
+++ b/packages/openapi-v3/src/__tests__/integration/controller-spec.integration.ts
@@ -313,7 +313,7 @@ describe('controller spec', () => {
         $ref: '#/components/schemas/Todo',
       });
 
-      const globalSchemas = (spec.components ?? {}).schemas;
+      const globalSchemas = spec.components?.schemas;
       expect(globalSchemas).to.deepEqual({
         Todo: {
           title: 'Todo',
@@ -362,7 +362,7 @@ describe('controller spec', () => {
         $ref: '#/definitions/Todo',
       });
 
-      const globalSchemas = (spec.components ?? {}).schemas;
+      const globalSchemas = spec.components?.schemas;
       expect(globalSchemas).to.deepEqual({
         Todo: {
           title: 'Todo',
@@ -462,7 +462,7 @@ describe('controller spec', () => {
       }
 
       const spec = getControllerSpec(MyController);
-      const globalSchemas = (spec.components ?? {}).schemas;
+      const globalSchemas = spec.components?.schemas;
       expect(globalSchemas).to.be.undefined();
     });
 
@@ -533,7 +533,7 @@ describe('controller spec', () => {
         },
       });
 
-      const globalSchemas = (spec.components ?? {}).schemas;
+      const globalSchemas = spec.components?.schemas;
       expect(globalSchemas).to.deepEqual({
         Todo: {
           title: 'Todo',
@@ -593,7 +593,7 @@ describe('controller spec', () => {
         $ref: '#/components/schemas/Todo',
       });
 
-      const globalSchemas = (spec.components ?? {}).schemas;
+      const globalSchemas = spec.components?.schemas;
       expect(globalSchemas).to.deepEqual({
         Todo: {
           title: 'Todo',
@@ -861,7 +861,7 @@ describe('controller spec', () => {
         $ref: '#/components/schemas/MyModel',
       });
 
-      const globalSchemas = (spec.components ?? {}).schemas;
+      const globalSchemas = spec.components?.schemas;
       expect(globalSchemas).to.deepEqual({
         MyModel: {
           title: 'MyModel',
diff --git a/packages/rest-crud/src/crud-rest.controller.ts b/packages/rest-crud/src/crud-rest.controller.ts
index d299af479506..5033347bb052 100644
--- a/packages/rest-crud/src/crud-rest.controller.ts
+++ b/packages/rest-crud/src/crud-rest.controller.ts
@@ -280,7 +280,7 @@ function getIdSchema<T extends Entity>(
   const modelSchema = jsonToSchemaObject(
     getJsonSchema(modelCtor),
   ) as SchemaObject;
-  return (modelSchema.properties ?? {})[idProp] as SchemaObject;
+  return modelSchema.properties?.[idProp] as SchemaObject;
 }
 
 // Temporary implementation of a short-hand version of `@requestBody`