diff --git a/.github/workflows/pr-label-check.yml b/.github/workflows/pr-label-check.yml
index d41a482..3378f29 100644
--- a/.github/workflows/pr-label-check.yml
+++ b/.github/workflows/pr-label-check.yml
@@ -15,15 +15,16 @@ jobs:
           HAS_MAJOR=$(echo "$LABELS" | grep -c '"major"' || true)
           HAS_MINOR=$(echo "$LABELS" | grep -c '"minor"' || true)
           HAS_PATCH=$(echo "$LABELS" | grep -c '"patch"' || true)
+          HAS_CHORE=$(echo "$LABELS" | grep -c '"chore"' || true)
 
-          COUNT=$((HAS_MAJOR + HAS_MINOR + HAS_PATCH))
+          COUNT=$((HAS_MAJOR + HAS_MINOR + HAS_PATCH + HAS_CHORE))
 
           if [ "$COUNT" -eq 0 ]; then
-            echo "::error::PR must have one of: major, minor, patch label"
+            echo "::error::PR must have one of: major, minor, patch, chore label"
             exit 1
           elif [ "$COUNT" -gt 1 ]; then
-            echo "::error::PR must have exactly one version label (major, minor, or patch). Found multiple."
+            echo "::error::PR must have exactly one label (major, minor, patch, or chore). Found multiple."
             exit 1
           fi
 
-          echo "✓ Version label found"
+          echo "✓ Label found"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4af2680..55aad5e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,6 +6,7 @@
 #        - "major" label  → 1.2.3 → 2.0.0
 #        - "minor" label  → 1.2.3 → 1.3.0
 #        - "patch" label  → 1.2.3 → 1.2.4  (also the default fallback)
+#        - "chore" label  → no release (CI housekeeping, docs, relicense, etc.)
 #   3. Decodes your keystore from a GitHub secret
 #   4. Builds a signed release APK with the new version
 #   5. Creates a GitHub Release with the APK attached
@@ -27,13 +28,11 @@ permissions:
   contents: write
 
 jobs:
-  build:
+  detect:
     runs-on: ubuntu-latest
-
+    outputs:
+      type: ${{ steps.bump.outputs.type }}
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
       - name: Detect bump type from merged PR labels
         id: bump
         env:
@@ -41,9 +40,12 @@ jobs:
         run: |
           # Find the PR associated with this merge commit
           COMMIT_SHA="${{ github.sha }}"
-          LABELS=$(gh pr list --state merged --search "$COMMIT_SHA" --json labels -q '.[0].labels[].name' 2>/dev/null || echo "")
+          LABELS=$(gh pr list --state merged --search "$COMMIT_SHA" --repo "${{ github.repository }}" --json labels -q '.[0].labels[].name' 2>/dev/null || echo "")
 
-          if echo "$LABELS" | grep -qi "major"; then
+          if echo "$LABELS" | grep -qi "chore"; then
+            echo "type=chore" >> "$GITHUB_OUTPUT"
+            echo "Chore PR — skipping release"
+          elif echo "$LABELS" | grep -qi "major"; then
             echo "type=major" >> "$GITHUB_OUTPUT"
           elif echo "$LABELS" | grep -qi "minor"; then
             echo "type=minor" >> "$GITHUB_OUTPUT"
@@ -52,6 +54,15 @@ jobs:
           fi
           echo "Bump type: $(grep type "$GITHUB_OUTPUT" | cut -d= -f2)"
 
+  build:
+    needs: detect
+    if: needs.detect.outputs.type != 'chore'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
       - name: Determine next version
         id: version
         env:
@@ -70,7 +81,7 @@ jobs:
 
           # Parse semver
           IFS='.' read -r MAJOR MINOR PATCH <<< "$LATEST"
-          BUMP="${{ steps.bump.outputs.type }}"
+          BUMP="${{ needs.detect.outputs.type }}"
 
           if [ "$BUMP" = "major" ]; then
             MAJOR=$((MAJOR + 1))
diff --git a/CLAUDE.md b/CLAUDE.md
index 57f44e3..1905de0 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -2,18 +2,20 @@
 
 ## PR Creation Rules
 
-When creating a PR to `master`, you MUST add exactly one version label based on the changes:
+When creating a PR to `master`, you MUST add exactly one label based on the changes:
 
 - **`major`** — Breaking changes, major new features, architecture overhaul
 - **`minor`** — New features, significant enhancements, new UI screens
 - **`patch`** — Bug fixes, small tweaks, translation updates, dependency bumps
+- **`chore`** — CI/workflow changes, docs-only edits, relicensing, repo housekeeping (no release is cut)
 
 Use `gh pr create --label <label>` to include the label when creating the PR.
 
-Analyze the diff to determine the appropriate version bump:
+Analyze the diff to determine the appropriate label:
 - If the change adds new user-facing functionality → `minor`
 - If the change fixes a bug or makes small adjustments → `patch`
 - If the change breaks backward compatibility or is a major overhaul → `major`
+- If the change does not affect the shipped APK (CI, README, LICENSE, `.github/`, `docs/`) → `chore`
 - When in doubt, default to `patch`
 
 ## Development Approach
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ce673cf..8c596a7 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -56,4 +56,4 @@ Existing translations: en, ko, de, es, fr, ja, nl, no, zh-CN
 
 ## License
 
-By contributing, you agree that your contributions will be licensed under the GPL-3.0 License.
+By contributing, you agree that your contributions will be licensed under the Apache License 2.0.
diff --git a/LICENSE b/LICENSE
index f288702..0ae5cf3 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,674 +1,200 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
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-
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-the GNU General Public License is intended to guarantee your freedom to
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-software for all its users.  We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors.  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
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-
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-<https://www.gnu.org/licenses/why-not-lgpl.html>.
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
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+      "Licensor" shall mean the copyright owner or entity authorized by
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+      "You" (or "Your") shall mean an individual or Legal Entity
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+      "Work" shall mean the work of authorship, whether in Source or
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+      (an example is provided in the Appendix below).
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+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
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+      designated in writing by the copyright owner as "Not a Contribution."
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
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+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+      Work and such Derivative Works in Source or Object form.
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+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for describing the origin of the Work and
+      reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may accept support,
+      warranty, indemnity, or other liability obligations and/or rights
+      consistent with this License. However, in accepting such obligations,
+      You may act only on Your own behalf and on Your sole responsibility,
+      not on behalf of any other Contributor, and only if You agree to
+      indemnify, defend, and hold each Contributor harmless for any
+      liability incurred by, or claims asserted against, such Contributor
+      by reason of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2024 Castla
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..db1ebb4
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,51 @@
+Castla
+Copyright (C) 2024 Castla
+
+This product includes software developed by the following third parties.
+Their respective licenses are reproduced below or referenced by URL.
+
+================================================================================
+Shizuku API / Provider
+  https://github.com/RikkaApps/Shizuku
+  Copyright (c) 2017 Rikka
+  Licensed under the Apache License, Version 2.0
+  http://www.apache.org/licenses/LICENSE-2.0
+
+NanoHTTPD
+  https://github.com/NanoHttpd/nanohttpd
+  Copyright (c) 2012-2017 elonen, paulsheer, and NanoHTTPD contributors
+  Licensed under the BSD 3-Clause License
+
+ZXing ("Zebra Crossing")
+  https://github.com/zxing/zxing
+  Copyright (c) 2007-2024 ZXing authors
+  Licensed under the Apache License, Version 2.0
+  http://www.apache.org/licenses/LICENSE-2.0
+
+AndroidX (Core, AppCompat, Activity, Lifecycle, Compose, Test)
+  https://developer.android.com/jetpack/androidx
+  Copyright (c) The Android Open Source Project
+  Licensed under the Apache License, Version 2.0
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Kotlin Standard Library / Kotlin Coroutines
+  https://github.com/JetBrains/kotlin
+  https://github.com/Kotlin/kotlinx.coroutines
+  Copyright (c) 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors
+  Licensed under the Apache License, Version 2.0
+  http://www.apache.org/licenses/LICENSE-2.0
+
+================================================================================
+Acknowledgements
+
+Some privileged-mode techniques used by this project were inspired by the
+approach taken in scrcpy (https://github.com/Genymobile/scrcpy, Apache-2.0).
+No source code from scrcpy is included.
+
+================================================================================
+Test-only dependencies (not distributed in release APK)
+
+  JUnit 4                         — Eclipse Public License 1.0
+  MockK                           — Apache License 2.0
+  Robolectric                     — MIT / Apache-2.0
+  AndroidX Test / UIAutomator     — Apache License 2.0
diff --git a/README.de.md b/README.de.md
index 3babf03..4c6fca6 100644
--- a/README.de.md
+++ b/README.de.md
@@ -6,7 +6,7 @@
   </p>
   <p align="center">
     <a href="https://github.com/Suprhimp/castla/releases/latest"><img src="https://img.shields.io/github/v/release/Suprhimp/castla?style=flat-square" alt="Latest Release"></a>
-    <a href="LICENSE"><img src="https://img.shields.io/badge/license-GPL--3.0-blue?style=flat-square" alt="License"></a>
+    <a href="LICENSE"><img src="https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square" alt="License"></a>
     <a href="https://ko-fi.com/suprhimp"><img src="https://img.shields.io/badge/Ko--fi-Support-ff5e5b?style=flat-square&logo=ko-fi&logoColor=white" alt="Ko-fi"></a>
   </p>
   <p align="center">
@@ -33,7 +33,7 @@ Castla ist eine kostenlose Open-Source-Lösung, die den Bildschirm deines Androi
 - **Volle Touch-Steuerung** — Tippe, wische und interagiere direkt vom Tesla-Bildschirm (über Shizuku)
 - **Audio-Streaming** — Geräteaudio direkt auf Tesla-Lautsprecher streamen (Android 10+)
 - **100% lokal & privat** — Alle Daten bleiben im WiFi/Hotspot
-- **Komplett kostenlos** — Keine Werbung, keine Paywalls. Open Source unter GPL-3.0
+- **Komplett kostenlos** — Keine Werbung, keine Paywalls. Open Source unter Apache-2.0
 
 ## Funktionen
 
@@ -84,6 +84,20 @@ Castla sammelt **keinerlei Daten**. Siehe [Datenschutzerklärung](PRIVACY.md).
 
 <a href="https://ko-fi.com/suprhimp"><img src="https://ko-fi.com/img/githubbutton_sm.svg" alt="Auf Ko-fi unterstützen"></a>
 
+## Verwendete Open-Source-Projekte
+
+Castla baut auf großartigen Open-Source-Projekten auf:
+
+- [Shizuku](https://shizuku.rikka.app/) — privilegierter API-Zugriff ohne Root
+- [NanoHTTPD](https://github.com/NanoHttpd/nanohttpd) — eingebetteter HTTP-/WebSocket-Server
+- [ZXing](https://github.com/zxing/zxing) — QR-Code-Generierung
+- [AndroidX / Jetpack Compose](https://developer.android.com/jetpack) — modernes Android-UI-Toolkit
+- [Kotlin Coroutines](https://github.com/Kotlin/kotlinx.coroutines) — asynchrone Streaming-Pipeline
+
+Einige Techniken des privilegierten Modus wurden von [scrcpy](https://github.com/Genymobile/scrcpy) inspiriert. Es ist kein scrcpy-Quellcode enthalten.
+
+Siehe [NOTICE](NOTICE) für die vollständige Liste der Drittanbieter-Attributionen.
+
 ## Lizenz
 
-[GNU General Public License v3.0](LICENSE)
+[Apache License 2.0](LICENSE)
diff --git a/README.es.md b/README.es.md
index cbeb324..8ac3fa9 100644
--- a/README.es.md
+++ b/README.es.md
@@ -6,7 +6,7 @@
   </p>
   <p align="center">
     <a href="https://github.com/Suprhimp/castla/releases/latest"><img src="https://img.shields.io/github/v/release/Suprhimp/castla?style=flat-square" alt="Latest Release"></a>
-    <a href="LICENSE"><img src="https://img.shields.io/badge/license-GPL--3.0-blue?style=flat-square" alt="License"></a>
+    <a href="LICENSE"><img src="https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square" alt="License"></a>
     <a href="https://ko-fi.com/suprhimp"><img src="https://img.shields.io/badge/Ko--fi-Support-ff5e5b?style=flat-square&logo=ko-fi&logoColor=white" alt="Ko-fi"></a>
   </p>
   <p align="center">
@@ -33,7 +33,7 @@ Castla es una solución gratuita y de código abierto que transmite la pantalla
 - **Control táctil completo** — Toca, desliza e interactúa directamente desde la pantalla de Tesla (vía Shizuku)
 - **Streaming de audio** — Audio del dispositivo directo a los altavoces de Tesla (Android 10+)
 - **100% local y privado** — Todos los datos permanecen en tu WiFi/hotspot
-- **Completamente gratis** — Sin anuncios, sin muros de pago. Código abierto bajo GPL-3.0
+- **Completamente gratis** — Sin anuncios, sin muros de pago. Código abierto bajo Apache-2.0
 
 ## Funciones
 
@@ -84,6 +84,20 @@ Castla **no recopila ningún dato**. Ver [Política de Privacidad](PRIVACY.md).
 
 <a href="https://ko-fi.com/suprhimp"><img src="https://ko-fi.com/img/githubbutton_sm.svg" alt="Apoyar en Ko-fi"></a>
 
+## Construido con
+
+Castla se apoya en el trabajo de grandes proyectos de código abierto:
+
+- [Shizuku](https://shizuku.rikka.app/) — acceso a APIs privilegiadas sin root
+- [NanoHTTPD](https://github.com/NanoHttpd/nanohttpd) — servidor HTTP + WebSocket embebido
+- [ZXing](https://github.com/zxing/zxing) — generación de códigos QR
+- [AndroidX / Jetpack Compose](https://developer.android.com/jetpack) — toolkit moderno de UI para Android
+- [Kotlin Coroutines](https://github.com/Kotlin/kotlinx.coroutines) — pipeline de streaming asíncrono
+
+Algunas técnicas del modo privilegiado se inspiraron en [scrcpy](https://github.com/Genymobile/scrcpy). No se incluye código fuente de scrcpy.
+
+Consulta [NOTICE](NOTICE) para la lista completa de atribuciones de terceros.
+
 ## Licencia
 
-[GNU General Public License v3.0](LICENSE)
+[Apache License 2.0](LICENSE)
diff --git a/README.fr.md b/README.fr.md
index dc58971..49f6485 100644
--- a/README.fr.md
+++ b/README.fr.md
@@ -6,7 +6,7 @@
   </p>
   <p align="center">
     <a href="https://github.com/Suprhimp/castla/releases/latest"><img src="https://img.shields.io/github/v/release/Suprhimp/castla?style=flat-square" alt="Latest Release"></a>
-    <a href="LICENSE"><img src="https://img.shields.io/badge/license-GPL--3.0-blue?style=flat-square" alt="License"></a>
+    <a href="LICENSE"><img src="https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square" alt="License"></a>
     <a href="https://ko-fi.com/suprhimp"><img src="https://img.shields.io/badge/Ko--fi-Support-ff5e5b?style=flat-square&logo=ko-fi&logoColor=white" alt="Ko-fi"></a>
   </p>
   <p align="center">
@@ -33,7 +33,7 @@ Castla est une solution gratuite et open source qui diffuse l'écran de votre t
 - **Contrôle tactile complet** — Touchez, glissez et interagissez directement depuis l'écran Tesla (via Shizuku)
 - **Streaming audio** — Audio de l'appareil directement sur les haut-parleurs Tesla (Android 10+)
 - **100% local et privé** — Toutes les données restent sur votre WiFi/hotspot
-- **Entièrement gratuit** — Sans pub, sans paywall. Open source sous GPL-3.0
+- **Entièrement gratuit** — Sans pub, sans paywall. Open source sous Apache-2.0
 
 ## Fonctionnalités
 
@@ -84,6 +84,20 @@ Castla **ne collecte aucune donnée**. Voir la [Politique de Confidentialité](P
 
 <a href="https://ko-fi.com/suprhimp"><img src="https://ko-fi.com/img/githubbutton_sm.svg" alt="Soutenir sur Ko-fi"></a>
 
+## Construit avec
+
+Castla s'appuie sur d'excellents projets open source :
+
+- [Shizuku](https://shizuku.rikka.app/) — accès aux API privilégiées sans root
+- [NanoHTTPD](https://github.com/NanoHttpd/nanohttpd) — serveur HTTP + WebSocket embarqué
+- [ZXing](https://github.com/zxing/zxing) — génération de codes QR
+- [AndroidX / Jetpack Compose](https://developer.android.com/jetpack) — boîte à outils UI Android moderne
+- [Kotlin Coroutines](https://github.com/Kotlin/kotlinx.coroutines) — pipeline de streaming asynchrone
+
+Certaines techniques du mode privilégié s'inspirent de [scrcpy](https://github.com/Genymobile/scrcpy). Aucun code source de scrcpy n'est inclus.
+
+Voir [NOTICE](NOTICE) pour la liste complète des attributions tierces.
+
 ## Licence
 
-[GNU General Public License v3.0](LICENSE)
+[Apache License 2.0](LICENSE)
diff --git a/README.ja.md b/README.ja.md
index 35b6042..bd58a11 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -6,7 +6,7 @@
   </p>
   <p align="center">
     <a href="https://github.com/Suprhimp/castla/releases/latest"><img src="https://img.shields.io/github/v/release/Suprhimp/castla?style=flat-square" alt="Latest Release"></a>
-    <a href="LICENSE"><img src="https://img.shields.io/badge/license-GPL--3.0-blue?style=flat-square" alt="License"></a>
+    <a href="LICENSE"><img src="https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square" alt="License"></a>
     <a href="https://ko-fi.com/suprhimp"><img src="https://img.shields.io/badge/Ko--fi-Support-ff5e5b?style=flat-square&logo=ko-fi&logoColor=white" alt="Ko-fi"></a>
   </p>
   <p align="center">
@@ -33,7 +33,7 @@ Castlaは、ローカルWiFiネットワーク経由でAndroidスマートフォ
 - **フルタッチコントロール** — テスラ画面から直接タップ、スワイプ、操作（Shizuku使用）
 - **オーディオストリーミング** — デバイスオーディオをテスラスピーカーに直接送信（Android 10+）
 - **100%ローカル＆プライベート** — すべてのデータはWiFi/ホットスポット内のみ
-- **完全無料** — 広告なし、課金なし。GPL-3.0オープンソース
+- **完全無料** — 広告なし、課金なし。Apache-2.0オープンソース
 
 ## 機能
 
@@ -84,6 +84,20 @@ Castlaは**一切のデータを収集しません**。詳細は[プライバシ
 
 <a href="https://ko-fi.com/suprhimp"><img src="https://ko-fi.com/img/githubbutton_sm.svg" alt="Ko-fiでサポート"></a>
 
+## 使用しているオープンソース
+
+Castla は素晴らしいオープンソースプロジェクトの上に成り立っています：
+
+- [Shizuku](https://shizuku.rikka.app/) — root なしで特権 API にアクセス
+- [NanoHTTPD](https://github.com/NanoHttpd/nanohttpd) — 組み込み HTTP + WebSocket サーバー
+- [ZXing](https://github.com/zxing/zxing) — QR コード生成
+- [AndroidX / Jetpack Compose](https://developer.android.com/jetpack) — モダンな Android UI ツールキット
+- [Kotlin Coroutines](https://github.com/Kotlin/kotlinx.coroutines) — 非同期ストリーミングパイプライン
+
+一部の特権モード手法は [scrcpy](https://github.com/Genymobile/scrcpy) のアプローチから着想を得ています。scrcpy のソースコードは含まれていません。
+
+サードパーティの完全な表記については [NOTICE](NOTICE) を参照してください。
+
 ## ライセンス
 
-[GNU General Public License v3.0](LICENSE)
+[Apache License 2.0](LICENSE)
diff --git a/README.ko.md b/README.ko.md
index 02d1be9..e398299 100644
--- a/README.ko.md
+++ b/README.ko.md
@@ -6,7 +6,7 @@
   </p>
   <p align="center">
     <a href="https://github.com/Suprhimp/castla/releases/latest"><img src="https://img.shields.io/github/v/release/Suprhimp/castla?style=flat-square" alt="Latest Release"></a>
-    <a href="LICENSE"><img src="https://img.shields.io/badge/license-GPL--3.0-blue?style=flat-square" alt="License"></a>
+    <a href="LICENSE"><img src="https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square" alt="License"></a>
     <a href="https://ko-fi.com/suprhimp"><img src="https://img.shields.io/badge/Ko--fi-Support-ff5e5b?style=flat-square&logo=ko-fi&logoColor=white" alt="Ko-fi"></a>
   </p>
   <p align="center">
@@ -33,7 +33,7 @@ Castla는 안드로이드 폰의 화면을 로컬 WiFi 네트워크를 통해 
 - **완전한 터치 컨트롤** — 테슬라 화면에서 직접 터치, 스와이프, 조작 (Shizuku 사용)
 - **오디오 스트리밍** — 기기 오디오를 테슬라 스피커로 직접 전송 (Android 10+)
 - **100% 로컬 & 프라이빗** — 모든 데이터는 WiFi/핫스팟 내에서만. 인터넷 전송 제로.
-- **완전 무료** — 광고 없음, 결제벽 없음. GPL-3.0 오픈소스.
+- **완전 무료** — 광고 없음, 결제벽 없음. Apache-2.0 오픈소스.
 
 ## 기능
 
@@ -100,6 +100,20 @@ Castla 덕분에 드라이브가 즐거워지셨다면 커피 한 잔 사주세
 
 <a href="https://ko-fi.com/suprhimp"><img src="https://ko-fi.com/img/githubbutton_sm.svg" alt="Ko-fi에서 후원"></a>
 
+## 사용된 오픈소스
+
+Castla는 훌륭한 오픈소스 프로젝트들의 도움으로 만들어졌습니다:
+
+- [Shizuku](https://shizuku.rikka.app/) — 루트 없이 특권 API 접근
+- [NanoHTTPD](https://github.com/NanoHttpd/nanohttpd) — 내장 HTTP + WebSocket 서버
+- [ZXing](https://github.com/zxing/zxing) — QR 코드 생성
+- [AndroidX / Jetpack Compose](https://developer.android.com/jetpack) — 현대적 Android UI 툴킷
+- [Kotlin Coroutines](https://github.com/Kotlin/kotlinx.coroutines) — 비동기 스트리밍 파이프라인
+
+일부 특권 모드 기법은 [scrcpy](https://github.com/Genymobile/scrcpy)의 접근 방식에서 영감을 받았습니다. scrcpy의 소스 코드는 포함되어 있지 않습니다.
+
+전체 서드파티 고지는 [NOTICE](NOTICE) 파일을 참조하세요.
+
 ## 라이선스
 
-[GNU General Public License v3.0](LICENSE)
+[Apache License 2.0](LICENSE)
diff --git a/README.md b/README.md
index 2d8241d..f493b1a 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
   </p>
   <p align="center">
     <a href="https://github.com/Suprhimp/castla/releases/latest"><img src="https://img.shields.io/github/v/release/Suprhimp/castla?style=flat-square" alt="Latest Release"></a>
-    <a href="LICENSE"><img src="https://img.shields.io/badge/license-GPL--3.0-blue?style=flat-square" alt="License"></a>
+    <a href="LICENSE"><img src="https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square" alt="License"></a>
     <a href="https://ko-fi.com/suprhimp"><img src="https://img.shields.io/badge/Ko--fi-Support-ff5e5b?style=flat-square&logo=ko-fi&logoColor=white" alt="Ko-fi"></a>
   </p>
   <p align="center">
@@ -33,7 +33,7 @@ Castla is a free, open-source solution that streams your Android phone's screen
 - **Full Touch control** — Tap, swipe, and interact with your phone directly from the Tesla screen (via Shizuku).
 - **Audio streaming** — Stream your device's audio directly to Tesla's speakers (Android 10+).
 - **100% local & private** — All data stays on your WiFi/hotspot. Zero data is sent to the internet.
-- **Completely free** — No ads, no paywalls. Open-source under GPL-3.0.
+- **Completely free** — No ads, no paywalls. Open-source under Apache-2.0.
 
 ## Features
 
@@ -137,15 +137,30 @@ If Castla made your road trips better and helped you navigate with Waze on the b
 
 <a href="https://ko-fi.com/suprhimp"><img src="https://ko-fi.com/img/githubbutton_sm.svg" alt="Support on Ko-fi"></a>
 
+## Built with
+
+Castla stands on the shoulders of great open-source projects:
+
+- [Shizuku](https://shizuku.rikka.app/) — privileged API access without root
+- [NanoHTTPD](https://github.com/NanoHttpd/nanohttpd) — embedded HTTP + WebSocket server
+- [ZXing](https://github.com/zxing/zxing) — QR code generation
+- [AndroidX / Jetpack Compose](https://developer.android.com/jetpack) — modern Android UI toolkit
+- [Kotlin Coroutines](https://github.com/Kotlin/kotlinx.coroutines) — async streaming pipeline
+
+Some privileged-mode techniques were inspired by [scrcpy](https://github.com/Genymobile/scrcpy). No scrcpy source code is included.
+
+See [NOTICE](NOTICE) for the full list of third-party attributions.
+
 ## License
 
-This project is licensed under the [GNU General Public License v3.0](LICENSE).
+This project is licensed under the [Apache License 2.0](LICENSE).
 
 ```
-Copyright (C) 2024 Castla
+Copyright 2024 Castla
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
 
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+    http://www.apache.org/licenses/LICENSE-2.0
 ```
diff --git a/README.zh-CN.md b/README.zh-CN.md
index d71ffb4..08a1f99 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -6,7 +6,7 @@
   </p>
   <p align="center">
     <a href="https://github.com/Suprhimp/castla/releases/latest"><img src="https://img.shields.io/github/v/release/Suprhimp/castla?style=flat-square" alt="Latest Release"></a>
-    <a href="LICENSE"><img src="https://img.shields.io/badge/license-GPL--3.0-blue?style=flat-square" alt="License"></a>
+    <a href="LICENSE"><img src="https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square" alt="License"></a>
     <a href="https://ko-fi.com/suprhimp"><img src="https://img.shields.io/badge/Ko--fi-Support-ff5e5b?style=flat-square&logo=ko-fi&logoColor=white" alt="Ko-fi"></a>
   </p>
   <p align="center">
@@ -33,7 +33,7 @@ Castla是一款免费开源解决方案，通过本地WiFi网络将安卓手机
 - **完整触控** — 直接在特斯拉屏幕上点触、滑动、操控手机（通过Shizuku）
 - **音频串流** — 将设备音频直接传输到特斯拉扬声器（Android 10+）
 - **100%本地且私密** — 所有数据仅在WiFi/热点内传输
-- **完全免费** — 无广告、无付费墙。GPL-3.0开源
+- **完全免费** — 无广告、无付费墙。Apache-2.0开源
 
 ## 功能
 
@@ -84,6 +84,20 @@ Castla **不收集任何数据**。详情请查看 [隐私政策](PRIVACY.md)。
 
 <a href="https://ko-fi.com/suprhimp"><img src="https://ko-fi.com/img/githubbutton_sm.svg" alt="在Ko-fi上支持"></a>
 
+## 使用的开源项目
+
+Castla 建立在出色的开源项目之上：
+
+- [Shizuku](https://shizuku.rikka.app/) — 无需 root 的特权 API 访问
+- [NanoHTTPD](https://github.com/NanoHttpd/nanohttpd) — 嵌入式 HTTP + WebSocket 服务器
+- [ZXing](https://github.com/zxing/zxing) — 二维码生成
+- [AndroidX / Jetpack Compose](https://developer.android.com/jetpack) — 现代 Android UI 工具包
+- [Kotlin Coroutines](https://github.com/Kotlin/kotlinx.coroutines) — 异步流式管道
+
+部分特权模式技术受 [scrcpy](https://github.com/Genymobile/scrcpy) 启发。本项目未包含 scrcpy 源代码。
+
+完整的第三方归属列表请参见 [NOTICE](NOTICE)。
+
 ## 许可证
 
-[GNU General Public License v3.0](LICENSE)
+[Apache License 2.0](LICENSE)
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