Clean up Dockerfile and make default CMD simpler

Dockerfile

@@ -1,16 +1,13 @@
 # syntax=docker/dockerfile:1
-
 FROM ubuntu:24.04
 WORKDIR /usr/src/app
 
 ENV DEBIAN_FRONTEND=noninteractive
 ENV VIRTUAL_ENV=/opt/venv
 
-ARG PYTHON_VER_MAJ=3.7
-ARG PYTHON_VER=3.7.17
-#ARG BLENDER_VERSION=3.0
-
-RUN apt-get update && apt-get install python3-pip python3-venv -y && python3 -m venv $VIRTUAL_ENV
+RUN apt-get update
+RUN apt-get install blender python3-pip python3-venv -y
+RUN python3 -m venv $VIRTUAL_ENV
 ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 
 COPY . .
@@ -21,13 +18,4 @@ ENV PYTHONPATH=/usr/src/app/src
 # Install languages
 RUN pip3 install .
 
-WORKDIR /usr/src/app/src
-
-# Check for install
-RUN textx list-languages
-RUN textx list-generators
-
-ADD test.sh /
-RUN chmod +x /test.sh
-
-CMD ["/test.sh"]
+CMD textx generate --target json-ld -o /usr/src/app/output /usr/src/app/models/*.fpm2