use tar and strip first dir

Dockerfile

@@ -31,13 +31,12 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     liblzma-dev \
     libncurses5-dev \
     libncursesw5-dev \
-    unzip \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 # Clone release
 RUN wget https://github.com/rommapp/romm/archive/refs/tags/$VERSION.zip && \
-unzip $VERSION.zip -d /app/code && rm $VERSION.zip
+tar xfz $VERSION.zip --strip-components=1 -C /app/code && rm $VERSION.zip
 
 # Install nvm
 ENV NVM_DIR="/root/.nvm"