diff --git a/.github/utils/_get_password.py b/.github/utils/_get_password.py
index 33071b6c..9b120c17 100644
--- a/.github/utils/_get_password.py
+++ b/.github/utils/_get_password.py
@@ -23,8 +23,6 @@ def get_password(
         auth_plugin="mysql_native_password",
     )
 
-    print(f"Generating passwords for version {version_name} ({version_code})")
-
     password = base64.b64encode(secrets.token_bytes(16)).decode()
     iv = secrets.token_bytes(16)
 
diff --git a/.github/utils/_utils.py b/.github/utils/_utils.py
index 09b59f4a..0ad46d54 100644
--- a/.github/utils/_utils.py
+++ b/.github/utils/_utils.py
@@ -102,7 +102,9 @@ def get_commit_log(project_dir: str, format: str, max_lines: int = None) -> str:
     )
 
     log = subprocess.run(
-        args=f"git log {last_tag}..HEAD --format=%an%x00%at%x00%h%x00%s%x00%D".split(" "),
+        args=f"git log {last_tag}..HEAD --format=%an%x00%at%x00%h%x00%s%x00%D".split(
+            " "
+        ),
         cwd=project_dir,
         stdout=subprocess.PIPE,
     )
diff --git a/.github/utils/bump_nightly.py b/.github/utils/bump_nightly.py
index 88b4798c..3fb74fa4 100644
--- a/.github/utils/bump_nightly.py
+++ b/.github/utils/bump_nightly.py
@@ -1,11 +1,8 @@
-import json
 import os
 import re
 import sys
 from datetime import datetime, timedelta
 
-import requests
-
 from _utils import (
     get_commit_log,
     get_project_dir,
@@ -25,17 +22,6 @@ if __name__ == "__main__":
         print("Missing GitHub environment variables.")
         exit(-1)
 
-    with requests.get(
-        f"https://api.github.com/repos/{repo}/actions/runs?per_page=5&status=success"
-    ) as r:
-        data = json.loads(r.text)
-        runs = [run for run in data["workflow_runs"] if run["head_sha"] == sha]
-        if runs:
-            print("::set-output name=hasNewChanges::false")
-            exit(0)
-
-    print("::set-output name=hasNewChanges::true")
-
     project_dir = get_project_dir()
 
     (version_code, version_name) = read_gradle_version(project_dir)
@@ -48,8 +34,8 @@ if __name__ == "__main__":
         date -= timedelta(days=1)
         version_name += "+nightly." + date.strftime("%Y%m%d")
 
-    print("::set-output name=appVersionName::" + version_name)
-    print("::set-output name=appVersionCode::" + str(version_code))
+    print("appVersionName=" + version_name)
+    print("appVersionCode=" + str(version_code))
 
     write_gradle_version(project_dir, version_code, version_name)
 
diff --git a/.github/utils/check_nightly.py b/.github/utils/check_nightly.py
new file mode 100644
index 00000000..bf8b56cf
--- /dev/null
+++ b/.github/utils/check_nightly.py
@@ -0,0 +1,23 @@
+import json
+import os
+
+import requests
+
+if __name__ == "__main__":
+    repo = os.getenv("GITHUB_REPOSITORY")
+    sha = os.getenv("GITHUB_SHA")
+
+    if not repo or not sha:
+        print("Missing GitHub environment variables.")
+        exit(-1)
+
+    with requests.get(
+        f"https://api.github.com/repos/{repo}/actions/runs?per_page=5&status=success"
+    ) as r:
+        data = json.loads(r.text)
+        runs = [run for run in data["workflow_runs"] if run["head_sha"] == sha]
+        if runs:
+            print("hasNewChanges=false")
+            exit(0)
+
+    print("hasNewChanges=true")
diff --git a/.github/utils/extract_changelogs.py b/.github/utils/extract_changelogs.py
index d5a659cc..544df813 100644
--- a/.github/utils/extract_changelogs.py
+++ b/.github/utils/extract_changelogs.py
@@ -12,13 +12,13 @@ if __name__ == "__main__":
 
     (version_code, version_name) = read_gradle_version(project_dir)
 
-    print("::set-output name=appVersionName::" + version_name)
-    print("::set-output name=appVersionCode::" + str(version_code))
+    print("appVersionName=" + version_name)
+    print("appVersionCode=" + str(version_code))
 
     dir = f"{project_dir}/app/release/whatsnew-{version_name}/"
     os.makedirs(dir, exist_ok=True)
 
-    print("::set-output name=changelogDir::" + dir)
+    print("changelogDir=" + dir)
 
     (title, changelog) = get_changelog(project_dir, format="plain")
 
@@ -27,9 +27,9 @@ if __name__ == "__main__":
         f.write(title)
         f.write("\n")
         f.write(changelog)
-    print("::set-output name=changelogPlainTitledFile::" + dir + "whatsnew_titled.txt")
+    print("changelogPlainTitledFile=" + dir + "whatsnew_titled.txt")
 
-    print("::set-output name=changelogTitle::" + title)
+    print("changelogTitle=" + title)
 
     # plain text changelog, max 500 chars - Google Play
     with open(dir + "whatsnew-pl-PL", "w", encoding="utf-8") as f:
@@ -41,32 +41,31 @@ if __name__ == "__main__":
         changelog = changelog.strip()
         f.write(changelog)
 
-    print("::set-output name=changelogPlainFile::" + dir + "whatsnew-pl-PL")
+    print("changelogPlainFile=" + dir + "whatsnew-pl-PL")
 
     # markdown changelog - Discord webhook
     (_, changelog) = get_changelog(project_dir, format="markdown")
     with open(dir + "whatsnew.md", "w", encoding="utf-8") as f:
         f.write(changelog)
-    print("::set-output name=changelogMarkdownFile::" + dir + "whatsnew.md")
+    print("changelogMarkdownFile=" + dir + "whatsnew.md")
 
     # html changelog - version info in DB
     (_, changelog) = get_changelog(project_dir, format="html")
     with open(dir + "whatsnew.html", "w", encoding="utf-8") as f:
         f.write(changelog)
-    print("::set-output name=changelogHtmlFile::" + dir + "whatsnew.html")
-
+    print("changelogHtmlFile=" + dir + "whatsnew.html")
 
     changelog = get_commit_log(project_dir, format="plain", max_lines=10)
     with open(dir + "commit_log.txt", "w", encoding="utf-8") as f:
         f.write(changelog)
-    print("::set-output name=commitLogPlainFile::" + dir + "commit_log.txt")
+    print("commitLogPlainFile=" + dir + "commit_log.txt")
 
     changelog = get_commit_log(project_dir, format="markdown", max_lines=10)
     with open(dir + "commit_log.md", "w", encoding="utf-8") as f:
         f.write(changelog)
-    print("::set-output name=commitLogMarkdownFile::" + dir + "commit_log.md")
+    print("commitLogMarkdownFile=" + dir + "commit_log.md")
 
     changelog = get_commit_log(project_dir, format="html", max_lines=10)
     with open(dir + "commit_log.html", "w", encoding="utf-8") as f:
         f.write(changelog)
-    print("::set-output name=commitLogHtmlFile::" + dir + "commit_log.html")
+    print("commitLogHtmlFile=" + dir + "commit_log.html")
diff --git a/.github/utils/rename_artifacts.py b/.github/utils/find_artifacts.py
similarity index 73%
rename from .github/utils/rename_artifacts.py
rename to .github/utils/find_artifacts.py
index 4eeabfaf..286836ae 100644
--- a/.github/utils/rename_artifacts.py
+++ b/.github/utils/find_artifacts.py
@@ -13,7 +13,7 @@ if __name__ == "__main__":
 
     files = glob.glob(f"{project_dir}/app/release/*.*")
     for file in files:
-        file_relative = file.replace(os.getenv("GITHUB_WORKSPACE") + "/", "")
+        file_relative = file.replace(project_dir + "/", "")
         if "-aligned.apk" in file:
             os.unlink(file)
         elif "-signed.apk" in file:
@@ -22,5 +22,5 @@ if __name__ == "__main__":
                 os.unlink(new_file)
             os.rename(file, new_file)
         elif ".apk" in file or ".aab" in file:
-            print("::set-output name=signedReleaseFile::" + file)
-            print("::set-output name=signedReleaseFileRelative::" + file_relative)
+            print("signedReleaseFile=" + file)
+            print("signedReleaseFileRelative=" + file_relative)
diff --git a/.github/utils/save_version.py b/.github/utils/save_version.py
index 01de17a7..a0eacb49 100644
--- a/.github/utils/save_version.py
+++ b/.github/utils/save_version.py
@@ -64,7 +64,14 @@ def save_version(
     if build_type in ["nightly", "daily"]:
         download_url = apk_server_nightly + apk_name if apk_name else None
     else:
-        download_url = apk_server_release + apk_name if apk_name else None
+        # download_url = apk_server_release + apk_name if apk_name else None
+        download_url = (
+            f"https://github.com/szkolny-eu/szkolny-android/releases/download/v{version_name}/{apk_name}"
+            if apk_name
+            else None
+        )
+    if download_url:
+        print("downloadUrl=" + download_url)
 
     cols = [
         "versionCode",
@@ -119,4 +126,12 @@ if __name__ == "__main__":
     APK_SERVER_RELEASE = os.getenv("APK_SERVER_RELEASE")
     APK_SERVER_NIGHTLY = os.getenv("APK_SERVER_NIGHTLY")
 
-    save_version(project_dir, DB_HOST, DB_USER, DB_PASS, DB_NAME, APK_SERVER_RELEASE, APK_SERVER_NIGHTLY)
+    save_version(
+        project_dir,
+        DB_HOST,
+        DB_USER,
+        DB_PASS,
+        DB_NAME,
+        APK_SERVER_RELEASE,
+        APK_SERVER_NIGHTLY,
+    )
diff --git a/.github/utils/sign.py b/.github/utils/sign.py
index 026d819b..bdf417d9 100644
--- a/.github/utils/sign.py
+++ b/.github/utils/sign.py
@@ -31,8 +31,6 @@ def sign(
     SIGNING_FORMAT = "$param1.{}.$param2"
     CPP_FORMAT = "/*{}*/\nstatic toys AES_IV[16] = {{\n\t{} }};"
 
-    print(f"Writing passwords for version {version_name} ({version_code})")
-
     iv_hex = " ".join(["{:02x}".format(x) for x in iv])
     iv_cpp = ", ".join(["0x{:02x}".format(x) for x in iv])
 
@@ -71,8 +69,8 @@ if __name__ == "__main__":
         version_name, version_code, DB_HOST, DB_USER, DB_PASS, DB_NAME
     )
 
-    print("::set-output name=appVersionName::" + version_name)
-    print("::set-output name=appVersionCode::" + str(version_code))
+    print("appVersionName=" + version_name)
+    print("appVersionCode=" + str(version_code))
 
     sign(
         project_dir,
diff --git a/.github/utils/webhook_discord.py b/.github/utils/webhook_discord.py
index 3c1404ae..cb1e6a0b 100644
--- a/.github/utils/webhook_discord.py
+++ b/.github/utils/webhook_discord.py
@@ -11,8 +11,7 @@ from _utils import get_changelog, get_commit_log, get_project_dir, read_gradle_v
 def post_webhook(
     project_dir: str,
     apk_file: str,
-    apk_server_release: str,
-    apk_server_nightly: str,
+    download_url: str,
     webhook_release: str,
     webhook_testing: str,
 ):
@@ -25,12 +24,6 @@ def post_webhook(
     testing = ["dev", "beta", "nightly", "daily"]
     testing = build_type in testing
 
-    apk_name = os.path.basename(apk_file)
-    if build_type in ["nightly", "daily"]:
-        download_url = apk_server_nightly + apk_name
-    else:
-        download_url = apk_server_release + apk_name
-
     if testing:
         build_date = int(os.stat(apk_file).st_mtime)
         if build_date:
@@ -48,13 +41,17 @@ def post_webhook(
         requests.post(url=webhook_testing, json=webhook)
     else:
         changelog = get_changelog(project_dir, format="markdown")
-        webhook = get_webhook_release(changelog, download_url)
+        webhook = get_webhook_release(version_name, changelog, download_url)
         requests.post(url=webhook_release, json=webhook)
 
 
-def get_webhook_release(changelog: str, download_url: str):
+def get_webhook_release(version_name: str, changelog: str, download_url: str):
     (title, content) = changelog
-    return {"content": f"__**{title}**__\n{content}\n{download_url}"}
+    return {
+        "content": (
+            f"__**{title}**__\n{content}\n[Szkolny.eu {version_name}]({download_url})"
+        ),
+    }
 
 
 def get_webhook_testing(
@@ -73,9 +70,11 @@ def get_webhook_testing(
                 "fields": [
                     {
                         "name": f"Wersja `{version_name}`",
-                        "value": f"[Pobierz .APK]({download_url})"
-                        if download_url
-                        else "*Pobieranie niedostępne*",
+                        "value": (
+                            f"[Pobierz .APK]({download_url})"
+                            if download_url
+                            else "*Pobieranie niedostępne*"
+                        ),
                         "inline": False,
                     },
                     {
@@ -103,16 +102,14 @@ if __name__ == "__main__":
 
     load_dotenv()
     APK_FILE = os.getenv("APK_FILE")
-    APK_SERVER_RELEASE = os.getenv("APK_SERVER_RELEASE")
-    APK_SERVER_NIGHTLY = os.getenv("APK_SERVER_NIGHTLY")
+    DOWNLOAD_URL = os.getenv("DOWNLOAD_URL")
     WEBHOOK_RELEASE = os.getenv("WEBHOOK_RELEASE")
     WEBHOOK_TESTING = os.getenv("WEBHOOK_TESTING")
 
     post_webhook(
         project_dir,
         APK_FILE,
-        APK_SERVER_RELEASE,
-        APK_SERVER_NIGHTLY,
+        DOWNLOAD_URL,
         WEBHOOK_RELEASE,
         WEBHOOK_TESTING,
     )
diff --git a/.github/workflows/_build.yml b/.github/workflows/_build.yml
new file mode 100644
index 00000000..491de21b
--- /dev/null
+++ b/.github/workflows/_build.yml
@@ -0,0 +1,195 @@
+name: "[reusable] Szkolny.eu Build"
+
+on:
+  workflow_call:
+    inputs:
+      nightly:
+        type: boolean
+        default: false
+      build-apk:
+        type: boolean
+        default: false
+      build-aab:
+        type: boolean
+        default: false
+
+      release-ssh:
+        type: boolean
+        default: false
+      release-github:
+        type: boolean
+        default: false
+      release-firebase:
+        type: boolean
+        default: false
+      release-google-play:
+        type: boolean
+        default: false
+      release-discord:
+        type: boolean
+        default: false
+    secrets:
+      APK_SERVER_NIGHTLY:
+      APK_SERVER_RELEASE:
+      DB_HOST:
+      DB_NAME:
+      DB_PASS:
+      DB_USER:
+      FIREBASE_APP_ID:
+      FIREBASE_GROUPS_NIGHTLY:
+      FIREBASE_GROUPS_RELEASE:
+      FIREBASE_SERVICE_ACCOUNT_JSON:
+      KEY_ALIAS_PASSWORD:
+      KEY_ALIAS:
+      KEY_STORE_PASSWORD:
+      KEY_STORE:
+      PLAY_RELEASE_TRACK:
+      PLAY_SERVICE_ACCOUNT_JSON:
+      SSH_IP:
+      SSH_KEY:
+      SSH_PATH_NIGHTLY:
+      SSH_PATH_RELEASE:
+      SSH_USERNAME:
+      WEBHOOK_RELEASE:
+      WEBHOOK_TESTING:
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          clean: false
+      - name: Setup JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: "temurin"
+          java-version: "17"
+      - name: Setup Python
+        uses: actions/setup-python@v4
+      - name: Install Python packages
+        uses: BSFishy/pip-action@v1
+        with:
+          packages: |
+            python-dotenv
+            pycryptodome
+            mysql-connector-python
+            requests
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: Bump nightly version
+        if: ${{ inputs.nightly }}
+        run: python $GITHUB_WORKSPACE/.github/utils/bump_nightly.py $GITHUB_WORKSPACE >> $GITHUB_OUTPUT
+      - name: Write signing passwords and keystore
+        env:
+          DB_HOST: ${{ secrets.DB_HOST }}
+          DB_USER: ${{ secrets.DB_USER }}
+          DB_PASS: ${{ secrets.DB_PASS }}
+          DB_NAME: ${{ secrets.DB_NAME }}
+          KEY_STORE: ${{ secrets.KEY_STORE }}
+        run: |
+          python $GITHUB_WORKSPACE/.github/utils/sign.py $GITHUB_WORKSPACE commit >> $GITHUB_OUTPUT
+          echo $KEY_STORE | base64 --decode > keystore.jks
+      - name: Clean build artifacts
+        run: |
+          rm -rf app/release/*
+          rm -rf app/build/outputs/apk/*
+          rm -rf app/build/outputs/bundle/*
+
+      - name: Build app with Gradle
+        if: ${{ inputs.build-apk || inputs.build-aab }}
+        run: |
+          chmod +x ./gradlew
+          ./gradlew \
+            ${{ inputs.build-apk && 'assembleOfficialRelease' || '' }} \
+            ${{ inputs.build-aab && 'bundlePlayRelease' || '' }} \
+            -P android.injected.signing.store.file=${{ github.workspace }}/keystore.jks \
+            -P android.injected.signing.store.password=${{ secrets.KEY_STORE_PASSWORD }} \
+            -P android.injected.signing.key.alias=${{ secrets.KEY_ALIAS }} \
+            -P android.injected.signing.key.password=${{ secrets.KEY_ALIAS_PASSWORD }}
+
+      - name: Upload release to server
+        if: ${{ inputs.release-ssh }}
+        uses: easingthemes/ssh-deploy@v2.1.6
+        env:
+          REMOTE_HOST: ${{ secrets.SSH_IP }}
+          REMOTE_USER: ${{ secrets.SSH_USERNAME }}
+          SSH_PRIVATE_KEY: ${{ secrets.SSH_KEY }}
+          SOURCE: app/release/
+          TARGET: ${{ inputs.nightly && secrets.SSH_PATH_NIGHTLY || secrets.SSH_PATH_RELEASE }}
+
+      - name: Find signed artifacts
+        id: artifacts
+        run: python $GITHUB_WORKSPACE/.github/utils/find_artifacts.py $GITHUB_WORKSPACE >> $GITHUB_OUTPUT
+      - name: Extract release changelogs
+        id: changelog
+        run: python $GITHUB_WORKSPACE/.github/utils/extract_changelogs.py $GITHUB_WORKSPACE >> $GITHUB_OUTPUT
+      - name: Save version to database
+        id: save
+        env:
+          DB_HOST: ${{ secrets.DB_HOST }}
+          DB_USER: ${{ secrets.DB_USER }}
+          DB_PASS: ${{ secrets.DB_PASS }}
+          DB_NAME: ${{ secrets.DB_NAME }}
+          APK_SERVER_RELEASE: ${{ secrets.APK_SERVER_RELEASE }}
+          APK_SERVER_NIGHTLY: ${{ secrets.APK_SERVER_NIGHTLY }}
+        run: python $GITHUB_WORKSPACE/.github/utils/save_version.py $GITHUB_WORKSPACE >> $GITHUB_OUTPUT
+
+      - name: Release on GitHub
+        if: ${{ inputs.release-github }}
+        uses: softprops/action-gh-release@v1
+        with:
+          name: ${{ steps.changelog.outputs.changelogTitle }}
+          body_path: ${{ steps.changelog.outputs.changelogMarkdownFile }}
+          files: ${{ steps.artifacts.outputs.signedReleaseFile }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Distribute to App Distribution
+        if: ${{ inputs.release-firebase }}
+        uses: wzieba/Firebase-Distribution-Github-Action@v1
+        with:
+          appId: ${{ secrets.FIREBASE_APP_ID }}
+          serviceCredentialsFileContent: ${{ secrets.FIREBASE_SERVICE_ACCOUNT_JSON }}
+          file: ${{ steps.artifacts.outputs.signedReleaseFile }}
+          groups: ${{ inputs.nightly && secrets.FIREBASE_GROUPS_NIGHTLY || secrets.FIREBASE_GROUPS_RELEASE }}
+          releaseNotesFile: ${{ inputs.nightly && steps.changelog.outputs.commitLogPlainFile || steps.changelog.outputs.changelogPlainTitledFile }}
+
+      - name: Publish AAB to Google Play
+        if: ${{ inputs.release-google-play }}
+        uses: r0adkll/upload-google-play@v1
+        with:
+          serviceAccountJsonPlainText: ${{ secrets.PLAY_SERVICE_ACCOUNT_JSON }}
+          packageName: pl.szczodrzynski.edziennik
+          releaseFiles: ${{ steps.artifacts.outputs.signedReleaseFile }}
+          releaseName: ${{ steps.changelog.outputs.appVersionName }}
+          track: ${{ secrets.PLAY_RELEASE_TRACK }}
+          whatsNewDirectory: ${{ steps.changelog.outputs.changelogDir }}
+          status: completed
+
+      - name: Post Discord webhook
+        if: ${{ inputs.release-discord }}
+        env:
+          APK_FILE: ${{ steps.artifacts.outputs.signedReleaseFile }}
+          DOWNLOAD_URL: ${{ steps.save.outputs.downloadUrl }}
+          WEBHOOK_RELEASE: ${{ secrets.WEBHOOK_RELEASE }}
+          WEBHOOK_TESTING: ${{ secrets.WEBHOOK_TESTING }}
+        run: python $GITHUB_WORKSPACE/.github/utils/webhook_discord.py $GITHUB_WORKSPACE >> $GITHUB_OUTPUT
+
+      - name: Upload workflow artifact
+        uses: actions/upload-artifact@v2
+        if: always()
+        with:
+          name: ${{ steps.changelog.outputs.appVersionName }}
+          path: |
+            app/release/whatsnew*/
+            app/release/*.apk
+            app/release/*.aab
+            app/release/*.json
+            app/release/*.txt
diff --git a/.github/workflows/build-nightly-apk.yml b/.github/workflows/build-nightly-apk.yml
deleted file mode 100644
index 0951149e..00000000
--- a/.github/workflows/build-nightly-apk.yml
+++ /dev/null
@@ -1,154 +0,0 @@
-name: Nightly build
-
-on:
-  schedule:
-    # 23:30 UTC, 0:30 or 1:30 CET/CEST
-    - cron: "30 23 * * *"
-  workflow_dispatch:
-
-jobs:
-  prepare:
-    name: Prepare build environment
-    runs-on: self-hosted
-    outputs:
-      hasNewChanges: ${{ steps.nightly.outputs.hasNewChanges }}
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-          clean: false
-      - name: Set executable permissions to gradlew
-        run: chmod +x ./gradlew
-      - name: Setup Python
-        uses: actions/setup-python@v2
-      - name: Install packages
-        uses: BSFishy/pip-action@v1
-        with:
-          packages: |
-            python-dotenv
-            pycryptodome
-            mysql-connector-python
-            requests
-      - name: Bump nightly version
-        id: nightly
-        run: python $GITHUB_WORKSPACE/.github/utils/bump_nightly.py $GITHUB_WORKSPACE
-      - name: Write signing passwords
-        if: steps.nightly.outputs.hasNewChanges
-        env:
-          DB_HOST: ${{ secrets.DB_HOST }}
-          DB_USER: ${{ secrets.DB_USER }}
-          DB_PASS: ${{ secrets.DB_PASS }}
-          DB_NAME: ${{ secrets.DB_NAME }}
-        run: python $GITHUB_WORKSPACE/.github/utils/sign.py $GITHUB_WORKSPACE commit
-  build:
-    name: Build APK
-    runs-on: self-hosted
-    needs:
-      - prepare
-    if: ${{ needs.prepare.outputs.hasNewChanges == 'true' }}
-    outputs:
-      androidHome: ${{ env.ANDROID_HOME }}
-      androidSdkRoot: ${{ env.ANDROID_SDK_ROOT }}
-    steps:
-      - name: Setup JDK 11
-        uses: actions/setup-java@v2
-        with:
-          distribution: 'temurin'
-          java-version: '11'
-      - name: Setup Android SDK
-        uses: android-actions/setup-android@v2
-      - name: Clean build artifacts
-        run: |
-          rm -rf app/release/*
-          rm -rf app/build/outputs/apk/*
-          rm -rf app/build/outputs/bundle/*
-      - name: Assemble official release with Gradle
-        uses: gradle/gradle-build-action@v2
-        with:
-          arguments: assembleOfficialRelease
-  sign:
-    name: Sign APK
-    runs-on: self-hosted
-    needs:
-      - build
-    outputs:
-      signedReleaseFile: ${{ steps.artifacts.outputs.signedReleaseFile }}
-      signedReleaseFileRelative: ${{ steps.artifacts.outputs.signedReleaseFileRelative }}
-    steps:
-      - name: Sign build artifacts
-        id: sign_app
-        uses: r0adkll/sign-android-release@v1
-        with:
-          releaseDirectory: app/release
-          signingKeyBase64: ${{ secrets.KEY_STORE }}
-          alias: ${{ secrets.KEY_ALIAS }}
-          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
-          keyPassword: ${{ secrets.KEY_ALIAS_PASSWORD }}
-        env:
-          ANDROID_HOME: ${{ needs.build.outputs.androidHome }}
-          ANDROID_SDK_ROOT: ${{ needs.build.outputs.androidSdkRoot }}
-          BUILD_TOOLS_VERSION: "30.0.2"
-      - name: Rename signed artifacts
-        id: artifacts
-        run: python $GITHUB_WORKSPACE/.github/utils/rename_artifacts.py $GITHUB_WORKSPACE
-  publish:
-    name: Publish APK
-    runs-on: self-hosted
-    needs:
-      - sign
-    steps:
-      - name: Setup Python
-        uses: actions/setup-python@v2
-
-      - name: Extract changelogs
-        id: changelog
-        run: python $GITHUB_WORKSPACE/.github/utils/extract_changelogs.py $GITHUB_WORKSPACE
-
-      - name: Upload APK to SFTP
-        uses: easingthemes/ssh-deploy@v2.1.6
-        env:
-          REMOTE_HOST: ${{ secrets.SSH_IP }}
-          REMOTE_USER: ${{ secrets.SSH_USERNAME }}
-          SSH_PRIVATE_KEY: ${{ secrets.SSH_KEY }}
-          SOURCE: ${{ needs.sign.outputs.signedReleaseFileRelative }}
-          TARGET: ${{ secrets.SSH_PATH_NIGHTLY }}
-      - name: Save version metadata
-        env:
-          DB_HOST: ${{ secrets.DB_HOST }}
-          DB_USER: ${{ secrets.DB_USER }}
-          DB_PASS: ${{ secrets.DB_PASS }}
-          DB_NAME: ${{ secrets.DB_NAME }}
-          APK_SERVER_RELEASE: ${{ secrets.APK_SERVER_RELEASE }}
-          APK_SERVER_NIGHTLY: ${{ secrets.APK_SERVER_NIGHTLY }}
-        run: python $GITHUB_WORKSPACE/.github/utils/save_version.py $GITHUB_WORKSPACE
-
-      - name: Distribute to App Distribution
-        uses: wzieba/Firebase-Distribution-Github-Action@v1
-        with:
-          appId: ${{ secrets.FIREBASE_APP_ID }}
-          token: ${{ secrets.FIREBASE_TOKEN }}
-          groups: ${{ secrets.FIREBASE_GROUPS_NIGHTLY }}
-          file: ${{ needs.sign.outputs.signedReleaseFile }}
-          releaseNotesFile: ${{ steps.changelog.outputs.commitLogPlainFile }}
-
-      - name: Post Discord webhook
-        env:
-          APK_FILE: ${{ needs.sign.outputs.signedReleaseFile }}
-          APK_SERVER_RELEASE: ${{ secrets.APK_SERVER_RELEASE }}
-          APK_SERVER_NIGHTLY: ${{ secrets.APK_SERVER_NIGHTLY }}
-          WEBHOOK_RELEASE: ${{ secrets.WEBHOOK_RELEASE }}
-          WEBHOOK_TESTING: ${{ secrets.WEBHOOK_TESTING }}
-        run: python $GITHUB_WORKSPACE/.github/utils/webhook_discord.py $GITHUB_WORKSPACE
-
-      - name: Upload workflow artifact
-        uses: actions/upload-artifact@v2
-        if: true
-        with:
-          name: ${{ steps.changelog.outputs.appVersionName }}
-          path: |
-            app/release/whatsnew*/
-            app/release/*.apk
-            app/release/*.aab
-            app/release/*.json
-            app/release/*.txt
diff --git a/.github/workflows/build-release-aab-play.yml b/.github/workflows/build-release-aab-play.yml
deleted file mode 100644
index eb6923bb..00000000
--- a/.github/workflows/build-release-aab-play.yml
+++ /dev/null
@@ -1,132 +0,0 @@
-name: Release build - Google Play [AAB]
-
-on:
-  push:
-    branches:
-      - "master"
-
-jobs:
-  prepare:
-    name: Prepare build environment
-    runs-on: self-hosted
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-          clean: false
-      - name: Set executable permissions to gradlew
-        run: chmod +x ./gradlew
-      - name: Setup Python
-        uses: actions/setup-python@v2
-      - name: Install packages
-        uses: BSFishy/pip-action@v1
-        with:
-          packages: |
-            python-dotenv
-            pycryptodome
-            mysql-connector-python
-            requests
-      - name: Write signing passwords
-        env:
-          DB_HOST: ${{ secrets.DB_HOST }}
-          DB_USER: ${{ secrets.DB_USER }}
-          DB_PASS: ${{ secrets.DB_PASS }}
-          DB_NAME: ${{ secrets.DB_NAME }}
-        run: python $GITHUB_WORKSPACE/.github/utils/sign.py $GITHUB_WORKSPACE commit
-  build:
-    name: Build App Bundle
-    runs-on: self-hosted
-    needs:
-      - prepare
-    outputs:
-      androidHome: ${{ env.ANDROID_HOME }}
-      androidSdkRoot: ${{ env.ANDROID_SDK_ROOT }}
-    steps:
-      - name: Setup JDK 11
-        uses: actions/setup-java@v2
-        with:
-          distribution: 'temurin'
-          java-version: '11'
-      - name: Setup Android SDK
-        uses: android-actions/setup-android@v2
-      - name: Clean build artifacts
-        run: |
-          rm -rf app/release/*
-          rm -rf app/build/outputs/apk/*
-          rm -rf app/build/outputs/bundle/*
-      - name: Bundle play release with Gradle
-        uses: gradle/gradle-build-action@v2
-        with:
-          arguments: bundlePlayRelease
-  sign:
-    name: Sign App Bundle
-    runs-on: self-hosted
-    needs:
-      - build
-    outputs:
-      signedReleaseFile: ${{ steps.artifacts.outputs.signedReleaseFile }}
-      signedReleaseFileRelative: ${{ steps.artifacts.outputs.signedReleaseFileRelative }}
-    steps:
-      - name: Sign build artifacts
-        id: sign_app
-        uses: r0adkll/sign-android-release@v1
-        with:
-          releaseDirectory: app/release
-          signingKeyBase64: ${{ secrets.KEY_STORE }}
-          alias: ${{ secrets.KEY_ALIAS }}
-          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
-          keyPassword: ${{ secrets.KEY_ALIAS_PASSWORD }}
-        env:
-          ANDROID_HOME: ${{ needs.build.outputs.androidHome }}
-          ANDROID_SDK_ROOT: ${{ needs.build.outputs.androidSdkRoot }}
-          BUILD_TOOLS_VERSION: "30.0.2"
-      - name: Rename signed artifacts
-        id: artifacts
-        run: python $GITHUB_WORKSPACE/.github/utils/rename_artifacts.py $GITHUB_WORKSPACE
-  publish:
-    name: Publish App Bundle
-    runs-on: self-hosted
-    needs:
-      - sign
-    steps:
-      - name: Setup Python
-        uses: actions/setup-python@v2
-
-      - name: Extract changelogs
-        id: changelog
-        run: python $GITHUB_WORKSPACE/.github/utils/extract_changelogs.py $GITHUB_WORKSPACE
-
-      - name: Save version metadata
-        env:
-          DB_HOST: ${{ secrets.DB_HOST }}
-          DB_USER: ${{ secrets.DB_USER }}
-          DB_PASS: ${{ secrets.DB_PASS }}
-          DB_NAME: ${{ secrets.DB_NAME }}
-          APK_SERVER_RELEASE: ${{ secrets.APK_SERVER_RELEASE }}
-          APK_SERVER_NIGHTLY: ${{ secrets.APK_SERVER_NIGHTLY }}
-        run: python $GITHUB_WORKSPACE/.github/utils/save_version.py $GITHUB_WORKSPACE
-
-      - name: Publish AAB to Google Play
-        uses: r0adkll/upload-google-play@v1
-        if: ${{ endsWith(needs.sign.outputs.signedReleaseFile, '.aab') }}
-        with:
-          serviceAccountJsonPlainText: ${{ secrets.PLAY_SERVICE_ACCOUNT_JSON }}
-          packageName: pl.szczodrzynski.edziennik
-          releaseFiles: ${{ needs.sign.outputs.signedReleaseFile }}
-          releaseName: ${{ steps.changelog.outputs.appVersionName }}
-          track: ${{ secrets.PLAY_RELEASE_TRACK }}
-          whatsNewDirectory: ${{ steps.changelog.outputs.changelogDir }}
-          status: completed
-
-      - name: Upload workflow artifact
-        uses: actions/upload-artifact@v2
-        if: always()
-        with:
-          name: ${{ steps.changelog.outputs.appVersionName }}
-          path: |
-            app/release/whatsnew*/
-            app/release/*.apk
-            app/release/*.aab
-            app/release/*.json
-            app/release/*.txt
diff --git a/.github/workflows/build-release-apk.yml b/.github/workflows/build-release-apk.yml
deleted file mode 100644
index 5ca055b9..00000000
--- a/.github/workflows/build-release-apk.yml
+++ /dev/null
@@ -1,154 +0,0 @@
-name: Release build - official
-
-on:
-  push:
-    tags:
-      - "*"
-
-jobs:
-  prepare:
-    name: Prepare build environment
-    runs-on: self-hosted
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-          clean: false
-      - name: Set executable permissions to gradlew
-        run: chmod +x ./gradlew
-      - name: Setup Python
-        uses: actions/setup-python@v2
-      - name: Install packages
-        uses: BSFishy/pip-action@v1
-        with:
-          packages: |
-            python-dotenv
-            pycryptodome
-            mysql-connector-python
-            requests
-      - name: Write signing passwords
-        env:
-          DB_HOST: ${{ secrets.DB_HOST }}
-          DB_USER: ${{ secrets.DB_USER }}
-          DB_PASS: ${{ secrets.DB_PASS }}
-          DB_NAME: ${{ secrets.DB_NAME }}
-        run: python $GITHUB_WORKSPACE/.github/utils/sign.py $GITHUB_WORKSPACE commit
-  build:
-    name: Build APK
-    runs-on: self-hosted
-    needs:
-      - prepare
-    outputs:
-      androidHome: ${{ env.ANDROID_HOME }}
-      androidSdkRoot: ${{ env.ANDROID_SDK_ROOT }}
-    steps:
-      - name: Setup JDK 11
-        uses: actions/setup-java@v2
-        with:
-          distribution: 'temurin'
-          java-version: '11'
-      - name: Setup Android SDK
-        uses: android-actions/setup-android@v2
-      - name: Clean build artifacts
-        run: |
-          rm -rf app/release/*
-          rm -rf app/build/outputs/apk/*
-          rm -rf app/build/outputs/bundle/*
-      - name: Assemble official release with Gradle
-        uses: gradle/gradle-build-action@v2
-        with:
-          arguments: assembleOfficialRelease
-  sign:
-    name: Sign APK
-    runs-on: self-hosted
-    needs:
-      - build
-    outputs:
-      signedReleaseFile: ${{ steps.artifacts.outputs.signedReleaseFile }}
-      signedReleaseFileRelative: ${{ steps.artifacts.outputs.signedReleaseFileRelative }}
-    steps:
-      - name: Sign build artifacts
-        id: sign_app
-        uses: r0adkll/sign-android-release@v1
-        with:
-          releaseDirectory: app/release
-          signingKeyBase64: ${{ secrets.KEY_STORE }}
-          alias: ${{ secrets.KEY_ALIAS }}
-          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
-          keyPassword: ${{ secrets.KEY_ALIAS_PASSWORD }}
-        env:
-          ANDROID_HOME: ${{ needs.build.outputs.androidHome }}
-          ANDROID_SDK_ROOT: ${{ needs.build.outputs.androidSdkRoot }}
-          BUILD_TOOLS_VERSION: "30.0.2"
-      - name: Rename signed artifacts
-        id: artifacts
-        run: python $GITHUB_WORKSPACE/.github/utils/rename_artifacts.py $GITHUB_WORKSPACE
-  publish:
-    name: Publish APK
-    runs-on: self-hosted
-    needs:
-      - sign
-    steps:
-      - name: Setup Python
-        uses: actions/setup-python@v2
-
-      - name: Extract changelogs
-        id: changelog
-        run: python $GITHUB_WORKSPACE/.github/utils/extract_changelogs.py $GITHUB_WORKSPACE
-
-      - name: Upload APK to SFTP
-        uses: easingthemes/ssh-deploy@v2.1.6
-        env:
-          REMOTE_HOST: ${{ secrets.SSH_IP }}
-          REMOTE_USER: ${{ secrets.SSH_USERNAME }}
-          SSH_PRIVATE_KEY: ${{ secrets.SSH_KEY }}
-          SOURCE: ${{ needs.sign.outputs.signedReleaseFileRelative }}
-          TARGET: ${{ secrets.SSH_PATH_RELEASE }}
-      - name: Save version metadata
-        env:
-          DB_HOST: ${{ secrets.DB_HOST }}
-          DB_USER: ${{ secrets.DB_USER }}
-          DB_PASS: ${{ secrets.DB_PASS }}
-          DB_NAME: ${{ secrets.DB_NAME }}
-          APK_SERVER_RELEASE: ${{ secrets.APK_SERVER_RELEASE }}
-          APK_SERVER_NIGHTLY: ${{ secrets.APK_SERVER_NIGHTLY }}
-        run: python $GITHUB_WORKSPACE/.github/utils/save_version.py $GITHUB_WORKSPACE
-
-      - name: Distribute to App Distribution
-        uses: wzieba/Firebase-Distribution-Github-Action@v1
-        with:
-          appId: ${{ secrets.FIREBASE_APP_ID }}
-          token: ${{ secrets.FIREBASE_TOKEN }}
-          groups: ${{ secrets.FIREBASE_GROUPS_RELEASE }}
-          file: ${{ needs.sign.outputs.signedReleaseFile }}
-          releaseNotesFile: ${{ steps.changelog.outputs.changelogPlainTitledFile }}
-      - name: Release on GitHub
-        uses: softprops/action-gh-release@v1
-        with:
-          name: ${{ steps.changelog.outputs.changelogTitle }}
-          body_path: ${{ steps.changelog.outputs.changelogMarkdownFile }}
-          files: ${{ needs.sign.outputs.signedReleaseFile }}
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Post Discord webhook
-        env:
-          APK_FILE: ${{ needs.sign.outputs.signedReleaseFile }}
-          APK_SERVER_RELEASE: ${{ secrets.APK_SERVER_RELEASE }}
-          APK_SERVER_NIGHTLY: ${{ secrets.APK_SERVER_NIGHTLY }}
-          WEBHOOK_RELEASE: ${{ secrets.WEBHOOK_RELEASE }}
-          WEBHOOK_TESTING: ${{ secrets.WEBHOOK_TESTING }}
-        run: python $GITHUB_WORKSPACE/.github/utils/webhook_discord.py $GITHUB_WORKSPACE
-
-      - name: Upload workflow artifact
-        uses: actions/upload-artifact@v2
-        if: true
-        with:
-          name: ${{ steps.changelog.outputs.appVersionName }}
-          path: |
-            app/release/whatsnew*/
-            app/release/*.apk
-            app/release/*.aab
-            app/release/*.json
-            app/release/*.txt
diff --git a/.github/workflows/push-master.yml b/.github/workflows/push-master.yml
new file mode 100644
index 00000000..f8452a25
--- /dev/null
+++ b/.github/workflows/push-master.yml
@@ -0,0 +1,13 @@
+name: Push (master)
+on:
+  push:
+    branches: ["master"]
+jobs:
+  build:
+    name: Build for Google Play (AAB)
+    uses: szkolny-eu/szkolny-android/.github/workflows/_build.yml@develop
+    with:
+      build-aab: true
+      release-ssh: true
+      release-google-play: true
+    secrets: inherit
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 00000000..9227110c
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,15 @@
+name: Release
+on:
+  push:
+    tags: ["v*.*.*"]
+jobs:
+  build:
+    name: Build release (APK)
+    uses: szkolny-eu/szkolny-android/.github/workflows/_build.yml@develop
+    with:
+      build-apk: true
+      release-ssh: true
+      release-github: true
+      release-firebase: true
+      release-discord: true
+    secrets: inherit
diff --git a/.github/workflows/schedule-dispatch.yml b/.github/workflows/schedule-dispatch.yml
new file mode 100644
index 00000000..9b2ca12e
--- /dev/null
+++ b/.github/workflows/schedule-dispatch.yml
@@ -0,0 +1,42 @@
+name: Schedule/dispatch
+on:
+  schedule:
+    # 23:30 UTC, 0:30 or 1:30 CET/CEST
+    - cron: "30 23 * * *"
+  workflow_dispatch:
+jobs:
+  check:
+    name: Check new changes
+    runs-on: ubuntu-latest
+    outputs:
+      hasNewChanges: ${{ steps.nightly.outputs.hasNewChanges }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          clean: false
+      - name: Setup Python
+        uses: actions/setup-python@v4
+      - name: Install packages
+        uses: BSFishy/pip-action@v1
+        with:
+          packages: |
+            requests
+      - name: Check new changes
+        id: nightly
+        run: python $GITHUB_WORKSPACE/.github/utils/check_nightly.py $GITHUB_WORKSPACE >> $GITHUB_OUTPUT
+
+  build:
+    name: Build nightly release (APK)
+    needs:
+      - check
+    if: ${{ needs.check.outputs.hasNewChanges == 'true' }}
+    uses: szkolny-eu/szkolny-android/.github/workflows/_build.yml@develop
+    with:
+      nightly: true
+      build-apk: true
+      release-ssh: true
+      release-firebase: true
+      release-discord: true
+    secrets: inherit
diff --git a/app/build.gradle b/app/build.gradle
index 0ceae1a1..cf7b500b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -104,7 +104,6 @@ android {
     externalNativeBuild {
         cmake {
             path "src/main/cpp/CMakeLists.txt"
-            version "3.10.2"
         }
     }
     lint {
@@ -113,8 +112,9 @@ android {
 }
 
 tasks.whenTaskAdded { task ->
-    if (!task.name.endsWith("Release") && !task.name.endsWith("ReleaseWithR8"))
+    if (!(task.name == "assembleUnofficialRelease" || task.name == "assembleOfficialRelease" || task.name == "signPlayReleaseBundle"))
         return
+
     def renameTaskName = "rename${task.name.capitalize()}"
 
     def flavor = ""
@@ -124,17 +124,22 @@ tasks.whenTaskAdded { task ->
         flavor = task.name.substring("assemble".length(), task.name.indexOf("Release")).uncapitalize()
     if (task.name.startsWith("minify"))
         flavor = task.name.substring("minify".length(), task.name.indexOf("Release")).uncapitalize()
+    if (task.name.startsWith("sign"))
+        flavor = task.name.substring("sign".length(), task.name.indexOf("Release")).uncapitalize()
 
     if (flavor != "") {
-        tasks.create(renameTaskName, Copy) {
+        tasks.register(renameTaskName, Copy) {
+            dependsOn(task.name)
+            duplicatesStrategy DuplicatesStrategy.FAIL
             from file("${projectDir}/${flavor}/release/"),
-                    file("${buildDir}/outputs/mapping/${flavor}Release/"),
-                    file("${buildDir}/outputs/apk/${flavor}/release/"),
-                    file("${buildDir}/outputs/bundle/${flavor}Release/")
-            include "*.aab", "*.apk", "mapping.txt", "output-metadata.json"
+                    file("${projectDir}/build/outputs/apk/${flavor}/release/"),
+                    file("${projectDir}/build/outputs/mapping/${flavor}Release/"),
+                    file("${projectDir}/build/outputs/bundle/${flavor}Release/")
+            include "*-release.aab", "*-release.apk", "mapping.txt", "output-metadata.json"
             destinationDir file("${projectDir}/release/")
             rename ".+?\\.(.+)", "Edziennik_${android.defaultConfig.versionName}_${flavor}." + '$1'
         }
+
         task.finalizedBy(renameTaskName)
     }
 }
diff --git a/app/src/main/cpp/CMakeLists.txt b/app/src/main/cpp/CMakeLists.txt
index e8096e62..eea75650 100644
--- a/app/src/main/cpp/CMakeLists.txt
+++ b/app/src/main/cpp/CMakeLists.txt
@@ -5,6 +5,8 @@
 
 cmake_minimum_required(VERSION 3.4.1)
 
+project(szkolny-signing)
+
 # Creates and names a library, sets it as either STATIC
 # or SHARED, and provides the relative paths to its source code.
 # You can define multiple libraries, and CMake builds them for you.
@@ -41,4 +43,4 @@ target_link_libraries( # Specifies the target library.
 
                        # Links the target library to the log library
                        # included in the NDK.
-                       ${log-lib} )
\ No newline at end of file
+                       ${log-lib} )