diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 865c0562e..f35d97f16 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -286,6 +286,8 @@ jobs:
       SIGNTOOL_PATH: "C:/Program Files (x86)/Windows Kits/10/bin/10.0.19041.0/x86/signtool.exe"
       WIN_CERT_PASSWORD: ${{ secrets.INSTALLER_CERT_WINDOWS_PASSWORD }}
       WIN_CERT_CONTAINER_NAME: ${{ secrets.INSTALLER_CERT_WINDOWS_CONTAINER }}
+      WIN_SIGNING_ENABLED: ${{ !github.event.pull_request.head.repo.fork }}
+
     strategy:
       matrix:
         config: ${{ fromJson(needs.select-targets.outputs.build-matrix) }}
diff --git a/arduino-ide-extension/package.json b/arduino-ide-extension/package.json
index b28dda5a5..8b3f7093b 100644
--- a/arduino-ide-extension/package.json
+++ b/arduino-ide-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "arduino-ide-extension",
-  "version": "2.3.3",
+  "version": "2.3.4",
   "description": "An extension for Theia building the Arduino IDE",
   "license": "AGPL-3.0-or-later",
   "scripts": {
diff --git a/arduino-ide-extension/src/node/service-error.ts b/arduino-ide-extension/src/node/service-error.ts
index a42c05d8a..0b6021ff0 100644
--- a/arduino-ide-extension/src/node/service-error.ts
+++ b/arduino-ide-extension/src/node/service-error.ts
@@ -6,7 +6,7 @@ import { ProgrammerIsRequiredForUploadError } from './cli-protocol/cc/arduino/cl
 type ProtoError = typeof ProgrammerIsRequiredForUploadError;
 const protoErrorsMap = new Map<string, ProtoError>([
   [
-    'type.googleapis.com/cc.arduino.cli.commands.v1.ProgrammerIsRequiredForUploadError',
+    'cc.arduino.cli.commands.v1.ProgrammerIsRequiredForUploadError',
     ProgrammerIsRequiredForUploadError,
   ],
   // handle other cli defined errors here
@@ -22,30 +22,33 @@ export namespace ServiceError {
     return arg instanceof Error && isStatusObject(arg);
   }
 
-  export function isInstanceOf(arg: unknown, type: unknown): boolean {
+  export function isInstanceOf<ProtoError>(
+    arg: unknown,
+    type: new (...args: unknown[]) => ProtoError
+  ): arg is ProtoError {
     if (!isStatusObject(arg)) {
       return false;
     }
 
-    const bin = arg.metadata.get('grpc-status-details-bin')[0];
+    try {
+      const bin = arg.metadata.get('grpc-status-details-bin')[0];
+      const uint8Array =
+        typeof bin === 'string'
+          ? stringToUint8Array(bin)
+          : new Uint8Array(bin.buffer, bin.byteOffset, bin.byteLength);
 
-    const uint8Array =
-      typeof bin === 'string'
-        ? stringToUint8Array(bin)
-        : new Uint8Array(bin.buffer, bin.byteOffset, bin.byteLength);
+      const errors = Status.deserializeBinary(uint8Array)
+        .getDetailsList()
+        .map((details) => {
+          const typeName = details.getTypeName();
+          const ErrorType = protoErrorsMap.get(typeName);
+          return ErrorType?.deserializeBinary(details.getValue_asU8());
+        });
 
-    const errors = Status.deserializeBinary(uint8Array)
-      .getDetailsList()
-      .map((details) => {
-        const typeUrl = details.getTypeUrl();
-        const ErrorType = protoErrorsMap.get(typeUrl);
-        return ErrorType?.deserializeBinary(details.getValue_asU8());
-      });
-
-    return !!errors.find((error) => {
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
-      return error && error instanceof <any>type;
-    });
+      return !!errors.find((error) => error && error instanceof type);
+    } catch {
+      return false;
+    }
   }
 
   function isStatusObject(arg: unknown): arg is StatusObject {
diff --git a/docs/development.md b/docs/development.md
index 367d2139b..84cd32c66 100644
--- a/docs/development.md
+++ b/docs/development.md
@@ -50,6 +50,7 @@ This repository contains the main code, but two more repositories are included d
 
 - To build the application, follow the Theia IDE [prerequisites](https://github.com/eclipse-theia/theia/blob/master/doc/Developing.md#prerequisites).
 - This project recommends using [Visual Studio Code (VS Code)](https://code.visualstudio.com/) for the development.
+- The build system might also need to build the [Arduino CLI](https://github.com/arduino/arduino-cli), the [Arduino Language Server](https://github.com/arduino/arduino-language-server), and other tools from the sources. In this case it is also necessary to have the build prerequisites for those projects installed. For more details, refer to the Arduino CLI's [prerequisites section](https://arduino.github.io/arduino-cli/latest/CONTRIBUTING/#prerequisites).
 
 ## Build from source
 
diff --git a/electron-app/package.json b/electron-app/package.json
index 0451107f1..c959f3548 100644
--- a/electron-app/package.json
+++ b/electron-app/package.json
@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "electron-app",
-  "version": "2.3.3",
+  "version": "2.3.4",
   "license": "AGPL-3.0-or-later",
   "main": "./src-gen/backend/electron-main.js",
   "dependencies": {
@@ -19,7 +19,7 @@
     "@theia/preferences": "1.41.0",
     "@theia/terminal": "1.41.0",
     "@theia/workspace": "1.41.0",
-    "arduino-ide-extension": "2.3.3"
+    "arduino-ide-extension": "2.3.4"
   },
   "devDependencies": {
     "@theia/cli": "1.41.0",
diff --git a/electron-app/scripts/windowsCustomSign.js b/electron-app/scripts/windowsCustomSign.js
index 29fbc5fad..41fc6d3b2 100644
--- a/electron-app/scripts/windowsCustomSign.js
+++ b/electron-app/scripts/windowsCustomSign.js
@@ -1,7 +1,10 @@
 const childProcess = require('child_process');
 
 exports.default = async function (configuration) {
-  if (!process.env.GITHUB_ACTIONS) {
+  if (
+    !process.env.GITHUB_ACTIONS ||
+    process.env.WIN_SIGNING_ENABLED !== 'true'
+  ) {
     return;
   }
 
diff --git a/package.json b/package.json
index 2e4dd1a64..88ebc27c1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "arduino-ide",
-  "version": "2.3.3",
+  "version": "2.3.4",
   "description": "Arduino IDE",
   "repository": "https://github.com/arduino/arduino-ide.git",
   "author": "Arduino SA",