diff --git a/.gitea/workflows/action.yml b/.gitea/workflows/action.yml
index 4d41a7c..0e62893 100644
--- a/.gitea/workflows/action.yml
+++ b/.gitea/workflows/action.yml
@@ -2,52 +2,104 @@ name: Compile LaTeX document
 
 on:
   push:
-    branches:
-      - main  # or any other branch you want to trigger the workflow
+    branches: [main]  # or any other branch you want to trigger the workflow
   pull_request:
-    branches:
-      - main
+    branches: [main]
 
 jobs:
   build:
     runs-on: ubuntu-latest
-
     container: 
       image: leplusorg/latex
-
-
-
-
     steps:
-    - name: "Determine prerequisites"
-      id: prereq
-      run: |
-        echo "need_node=$(command -v node >/dev/null 2>&1 && echo 0 || echo 1)" >> $GITHUB_OUTPUT
-    - name: Install node
-      if: ${{ steps.prereq.outputs.need_node == '1' }}
-      run: |
-          apt update -y && apt install -y curl
-          curl -sS https://webi.sh/node | sh
-          echo ~/.local/opt/node/bin >> $GITHUB_PATH
+      - name: "Determine prerequisites"
+        id: prereq
+        run: |
+          echo "need_node=$(command -v node >/dev/null 2>&1 && echo 0 || echo 1)" >> $GITHUB_OUTPUT
+      - name: Install node
+        if: ${{ steps.prereq.outputs.need_node == '1' }}
+        run: |
+            apt update -y && apt install -y curl
+            curl -sS https://webi.sh/node | sh
+            echo ~/.local/opt/node/bin >> $GITHUB_PATH
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Compile LaTeX Document
+        run: latexmk -pdf ${{ env.root_file }}
+        env:
+          root_file: main.tex  # Replace 'main.tex' with the path to your main LaTeX file
+      - name: Upload artifacts and release assets
+        uses: nanoufo/action-upload-artifacts-and-release-assets@v1.9
+        with:
+          path: ./main.pdf
 
-
-    - uses: actions/checkout@v3
-      with:
-        fetch-depth: 0
-
-    - name: Compile LaTeX Document
-      run: latexmk -pdf ${{ env.root_file }}
-      env:
-        root_file: main.tex  # Replace 'main.tex' with the path to your main LaTeX file
-    
-    - name: Upload artifacts and release assets
-      uses: nanoufo/action-upload-artifacts-and-release-assets@v1.9
-      with:
-        path: |
-          ./main.pdf
-#    - name: Upload PDF
-#      uses: actions/upload-artifact@v3
-#      with:
-#        name: Beitrittserklaerung_RudernDonauLinz.pdf
-#        path: ./main.pdf
+  latex_spellcheck:
+    runs-on: ubuntu-latest
+    container:
+      image: registry.gitlab.com/islandoftex/images/texlive:${{ env.LATEX_SPELLCHECK_TEXLIVE_VERSION }}
+    env:
+      LATEX_SPELLCHECK_SOURCE_NAME: main
+      LATEX_SPELLCHECK_SOURCE_PATH: './'
+      LATEX_SPELLCHECK_SOURCE_LANGUAGE_DEFAULT: de-AT
+      LATEX_SPELLCHECK_IGNORELIST: spellcheck_custom_words.txt
+      LATEX_SPELLCHECK_TEXLIVE_VERSION: TL2021-2021-12-12-04-05
+      LATEX_SPELLCHECK_TEXLIVE_IMAGE: registry.gitlab.com/islandoftex/images/texlive
+    steps:
+      - name: "Determine prerequisites"
+        id: prereq
+        run: |
+          echo "need_node=$(command -v node >/dev/null 2>&1 && echo 0 || echo 1)" >> $GITHUB_OUTPUT
+      - name: Install node
+        if: ${{ steps.prereq.outputs.need_node == '1' }}
+        run: |
+            apt update -y && apt install -y curl
+            curl -sS https://webi.sh/node | sh
+            echo ~/.local/opt/node/bin >> $GITHUB_PATH
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Prepare environment
+        run: |
+          cd $LATEX_SPELLCHECK_SOURCE_PATH
+          export SOURCE_LANGUAGE=$(cat $LATEX_SPELLCHECK_SOURCE_NAME.tex | perl -e '
+            $spellcheck_language = $ENV{LATEX_SPELLCHECK_SOURCE_LANGUAGE_DEFAULT};
+            while (<>) {
+              last if !/^%\s+!/;
+              if (/^%\s+!tex\s+spellcheck\s*=\s*(.+)$/i) {
+                $lang = "$1";
+                $lang =~ s/^\s+|\s+$//g;
+                $spellcheck_language = $lang;
+              }
+            }
+            $spellcheck_language = $ENV{LATEX_SPELLCHECK_SOURCE_LANGUAGE} if ($ENV{LATEX_SPELLCHECK_SOURCE_LANGUAGE});
+            $spellcheck_language =~ s/^([a-zA-Z]{2})([-_]([a-zA-Z]{2}))?.*$/$1/;
+            $spellcheck_variant = "$3";
+            print "${spellcheck_language}-${spellcheck_variant}";
+            ')
+          export LANGUAGE_PREFIX=$(echo $SOURCE_LANGUAGE | head -c2 -)
+          apt-get update
+          apt-get -y install python3-pip wget python3-venv
+          python3 -m venv /tmp/env
+          . /tmp/env/bin/activate
+          pip3 install yalafi
+          wget --directory-prefix=/srv/ https://languagetool.org/download/LanguageTool-stable.zip
+          unzip /srv/LanguageTool-stable.zip -d /srv/lt/
+          mv /srv/lt/* /srv/lt/LanguageTool
+          sed -i -e '$a\\' /srv/lt/LanguageTool/org/languagetool/resource/$LANGUAGE_PREFIX/hunspell/spelling_custom.txt
+          test -f "$LATEX_SPELLCHECK_IGNORELIST" && cat ./$LATEX_SPELLCHECK_IGNORELIST >>/srv/lt/LanguageTool/org/languagetool/resource/$LANGUAGE_PREFIX/hunspell/spelling_custom.txt
+          latexpand $LATEX_SPELLCHECK_SOURCE_NAME.tex >$LATEX_SPELLCHECK_SOURCE_NAME.spellcheck.merged.tmp
+          sed -i 's/~/ 1/g' $LATEX_SPELLCHECK_SOURCE_NAME.spellcheck.merged.tmp
+          detex $LATEX_SPELLCHECK_SOURCE_NAME.spellcheck.merged.tmp >$LATEX_SPELLCHECK_SOURCE_NAME.spellcheck.plain.tmp
+          python3 -m yalafi.shell --lt-directory /srv/lt/LanguageTool --output html --language $SOURCE_LANGUAGE $LATEX_SPELLCHECK_SOURCE_NAME.spellcheck.plain.tmp >$LATEX_SPELLCHECK_SOURCE_NAME.spellcheck.html
+ #     - name: Upload Spellcheck Results
+ #       uses: actions/upload-artifact@v2
+ #       with:
+ #         name: spellcheck-results
+ #         path: ${{ env.LATEX_SPELLCHECK_SOURCE_PATH }}${{ env.LATEX_SPELLCHECK_SOURCE_NAME }}.spellcheck.html
+      - name: Upload artifacts and release assets
+        uses: nanoufo/action-upload-artifacts-and-release-assets@v1.9
+        with:
+          name: spellcheck-results
+          path: ${{ env.LATEX_SPELLCHECK_SOURCE_PATH }}${{ env.LATEX_SPELLCHECK_SOURCE_NAME }}.spellcheck.html
 
diff --git a/main.tex b/main.tex
index e44ac40..e394571 100644
--- a/main.tex
+++ b/main.tex
@@ -63,7 +63,7 @@ Gleichzeitig erkläre ich, dass ich des Schwimmens kundig bin und mein Gesundhei
 
 \noindent
 
-\textbf{Für Rennjugend:} $\Box$ Hiermit bestätige ich den Ankauf eines Ruderanzuges (Preis ca. 80€). Die zuständige Person des Vereines wird sich, zwecks der Größenauswahl, bei Ihnen melden.\\
+\textbf{Für Rennjugend:} $\Box$ Hiermit bestätige ich den Ankauf eines Ruderanzuges (Preis ca. 80 €). Die zuständige Person des Vereines wird sich, zwecks der Größenauswahl, bei Ihnen melden.\\
 
 \noindent
 \begin{tabular}{|M{\halfcolwidth}|M{\halfcolwidth}|}
diff --git a/spellcheck_custom_words.txt b/spellcheck_custom_words.txt
new file mode 100644
index 0000000..b5cc213
--- /dev/null
+++ b/spellcheck_custom_words.txt
@@ -0,0 +1,9 @@
+ASKÖ
+OÖRV
+OÖ
+ÖRV
+ZVR-Zahl
+Heilhamerweg
+ruderischen
+Viribus
+units