Docker: get back the old stuff

.docker/Dockerfile

@@ -1,38 +1,19 @@
-# Stage 1: Builder with all necessary packages
-FROM ubuntu:latest AS builder
+FROM ubuntu:22.04
 
-# Install build dependencies
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-        build-essential \
-        texlive-full \
-        perl \
-        fontconfig \
-        && rm -rf /var/lib/apt/lists/*
+# Avoid prompts from apt
+ENV DEBIAN_FRONTEND=noninteractive
 
-# Stage 2: Final image with only runtime dependencies
-FROM ubuntu:latest
-
-# Install minimal runtime dependencies
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-        texlive-xetex \
-        texlive-fonts-recommended \
-        texlive-pictures \
-        fontconfig \
+# Install required packages
+RUN apt-get update && apt-get install -y \
+    texlive-full \
+    latexmk \
     && rm -rf /var/lib/apt/lists/*
 
-# Copy texmf files from builder
-COPY --from=builder /usr/share/texmf-dist /usr/share/texmf-dist
-
+# Create a working directory
 WORKDIR /latex
 
-# Copy your LaTeX files
+# Copy compilation script
 COPY entrypoint.sh /entrypoint.sh
-COPY *.tex *.cls *.sty ./
-
-# Make entrypoint executable and refresh TeX file database
-RUN chmod +x /entrypoint.sh && \
-    texhash
+RUN chmod +x /entrypoint.sh
 
 ENTRYPOINT ["/entrypoint.sh"]