diff --git a/.github/workflows/appimage-release.yml b/.github/workflows/appimage-release.yml
index 2cdbfcd..417d210 100644
--- a/.github/workflows/appimage-release.yml
+++ b/.github/workflows/appimage-release.yml
@@ -499,26 +499,36 @@ jobs:
         if: >
           github.event.client_payload.options.update
           && github.event.client_payload.options.packer
+        shell: python3 {0}
         run: |
-          cd $REPO_NAME/..
-          mkdir DesktopPrivate
-          cd DesktopPrivate
+          import os
+          p = os.environ["REPO_NAME"]+"/../DesktopPrivate"
+          os.mkdir(p)
+          os.chdir(p)
 
-          echo "
-          const char *PrivateKey = \"\\
-          -----BEGIN RSA PRIVATE KEY-----\\n\\
+          keys_contents = r"""
+          const char *PrivateKey = "\
+          -----BEGIN RSA PRIVATE KEY-----\n\
           ${{ secrets.PACKER_PRIVATE_KEY }}
-          -----END RSA PRIVATE KEY-----\\
-          \";
+          -----END RSA PRIVATE KEY-----\
+          ";
 
-          const char *PrivateBetaKey = \"\\
-          -----BEGIN RSA PRIVATE KEY-----\\n\\
+          const char *PrivateBetaKey = "\
+          -----BEGIN RSA PRIVATE KEY-----\n\
           ${{ secrets.PACKER_PRIVATE_BETA_KEY }}
-          -----END RSA PRIVATE KEY-----\\
-          \";
-          " > packer_private.h
+          -----END RSA PRIVATE KEY-----\
+          ";
+          """
 
-          echo "\nconst char *AlphaPrivateKey = \"\";\n" > alpha_private.h
+          alpha_contents = r"""
+          const char *AlphaPrivateKey = "";
+          """
+
+          with open("packer_private.h", "w", encoding="utf-8") as f:
+              f.write(keys_contents)
+
+          with open("alpha_private.h", "w", encoding="utf-8") as f:
+              f.write(alpha_contents)
 
       - name: Kotatogram Desktop build.
         if: env.ONLY_CACHE == 'false'
diff --git a/.github/workflows/win-release.yml b/.github/workflows/win-release.yml
index 3c7b82b..a220aa3 100644
--- a/.github/workflows/win-release.yml
+++ b/.github/workflows/win-release.yml
@@ -251,32 +251,49 @@ jobs:
 
           cd ..
           rmdir /S /Q qt_%QT%
+      
+      - name: Setup Python 3.x
+        if: >
+          github.event.client_payload.options.update
+          && github.event.client_payload.options.packer
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
 
       - name: Setting up updater keys.
         if: >
           github.event.client_payload.options.update
           && github.event.client_payload.options.packer
-        shell: bash
+        shell: python
         run: |
-          cd $REPO_NAME/..
-          mkdir DesktopPrivate
-          cd DesktopPrivate
-
-          echo "
-          const char *PrivateKey = \"\\
-          -----BEGIN RSA PRIVATE KEY-----\\n\\
+          import os
+          p = os.environ["REPO_NAME"]+"/../DesktopPrivate"
+          os.mkdir(p)
+          os.chdir(p)
+
+          keys_contents = r"""
+          const char *PrivateKey = "\
+          -----BEGIN RSA PRIVATE KEY-----\n\
           ${{ secrets.PACKER_PRIVATE_KEY }}
-          -----END RSA PRIVATE KEY-----\\
-          \";
+          -----END RSA PRIVATE KEY-----\
+          ";
 
-          const char *PrivateBetaKey = \"\\
-          -----BEGIN RSA PRIVATE KEY-----\\n\\
+          const char *PrivateBetaKey = "\
+          -----BEGIN RSA PRIVATE KEY-----\n\
           ${{ secrets.PACKER_PRIVATE_BETA_KEY }}
-          -----END RSA PRIVATE KEY-----\\
-          \";
-          " > packer_private.h
+          -----END RSA PRIVATE KEY-----\
+          ";
+          """
 
-          echo "\nconst char *AlphaPrivateKey = \"\";\n" > alpha_private.h
+          alpha_contents = r"""
+          const char *AlphaPrivateKey = "";
+          """
+
+          with open("packer_private.h", "w", encoding="utf-8") as f:
+              f.write(keys_contents)
+
+          with open("alpha_private.h", "w", encoding="utf-8") as f:
+              f.write(alpha_contents)
 
       - name: Kotatogram Desktop build.
         if: env.ONLY_CACHE == 'false'
@@ -343,14 +360,6 @@ jobs:
           asset_path: ./${{ env.REPO_NAME }}/artifact/${{ env.ARTIFACT_NAME }}
           asset_name: ${{ env.ARTIFACT_NAME }}
           asset_content_type: application/octet-stream
-
-      - name: Setup Python 3.x
-        if: >
-          env.ONLY_CACHE == 'false'
-          && github.event.client_payload.options.telegram
-        uses: actions/setup-python@v2
-        with:
-          python-version: '3.x'
       
       - name: Install dependencies for Telegram uploader.
         if: >