Updated the proostekrant to work properly again.

docker/latex/Dockerfile

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+FROM texlive/texlive:latest
+
+RUN apt-get update && apt-get install -y \
+    curl \
+    wget \
+    ghostscript \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /var/www
+
+# LaTeX is already installed in the texlive image
+# No need to install additional packages
+
+EXPOSE 80
+
+CMD ["/bin/bash"]

docker/nginx/Dockerfile

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+FROM nginx:alpine
+
+RUN apk add --no-cache curl
+
+COPY docker/nginx/nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]

docker/nginx/nginx.conf

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+server {
+    listen 80;
+    server_name localhost;
+    root /var/www/html/public;
+    index index.php;
+
+    location / {
+        try_files $uri $uri/ /index.php?$query_string;
+    }
+
+    location ~ \.php$ {
+        fastcgi_pass php:9000;
+        fastcgi_index index.php;
+        include fastcgi_params;
+        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+        fastcgi_param PATH_INFO $fastcgi_path_info;
+    }
+}

docker/php/Dockerfile

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+FROM php:8.2-fpm-alpine
+
+# Install dependencies for GD extension
+RUN apk add --no-cache --virtual .build-deps \
+    freetype-dev \
+    libjpeg-turbo-dev \
+    libpng-dev \
+    libwebp-dev \
+    zlib-dev
+
+# Install and enable GD extension with all image format support
+# Note: --with-png and --with-jpeg are now built-in, only need freetype and webp
+RUN docker-php-ext-configure gd \
+    --with-freetype \
+    --with-webp
+
+# Install PHP extensions
+RUN docker-php-ext-install -j$(nproc) \
+    gd \
+    mysqli \
+    pdo \
+    pdo_mysql
+
+# Clean up build dependencies
+RUN apk del .build-deps
+
+# Also install runtime libraries for GD
+RUN apk add --no-cache \
+    freetype \
+    libjpeg-turbo \
+    libpng \
+    libwebp \
+    zlib
+
+# Copy PHP configuration
+COPY docker/php/php.ini /usr/local/etc/php/conf.d/custom.ini
+
+WORKDIR /var/www/html
+
+EXPOSE 9000
+
+CMD ["php-fpm"]

docker/php/php.ini

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+upload_max_filesize = 50M
+post_max_size = 52M
+memory_limit = 512M
+max_execution_time = 300
+display_errors = On
+error_reporting = E_ALL
+date.timezone = Europe/Brussels