diff --git a/.env b/.env
index c0b9530..0c7f7a7 100644
--- a/.env
+++ b/.env
@@ -33,7 +33,8 @@ PUBLIC_SMTP_PORT=1025
 
 # Docker Compose sub-network
 # Copy this /16 sub-net to you docker/varnish/default.vcl to allow any subnet service to purge varnish
-DEFAULT_GATEWAY=172.144.0.0
+SUB_NETWORK=172.144.0.0
+DEFAULT_GATEWAY=172.144.0.1
 
 DEPLOY_TAG=latest
 VARNISH_SIZE=512M
diff --git a/Dockerfile b/Dockerfile
index 4c6e3a6..4b6c635 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
 ARG PHP_VERSION=8.5.5
-ARG MYSQL_VERSION=8.4.7
-ARG NGINX_VERSION=1.28.3
+ARG MYSQL_VERSION=8.5.7
+ARG NGINX_VERSION=1.30.2
 ARG MARIADB_VERSION=11.8.3
 ARG VARNISH_VERSION=7.7.3
-ARG COMPOSER_VERSION=2.9.7
+ARG COMPOSER_VERSION=2.10.1
 ARG PHP_EXTENSION_INSTALLER_VERSION=2.10.12
 ARG PHP_EXTENSION_REDIS_VERSION=6.3.0
 
diff --git a/Makefile b/Makefile
index bece212..3ac62a9 100644
--- a/Makefile
+++ b/Makefile
@@ -46,3 +46,13 @@ changelog:
 
 bump:
 	git cliff --bump -o CHANGELOG.md
+
+pdf:
+	@if [ -z "$(FILE)" ]; then echo "Usage: make pdf FILE=path/to/file.md"; exit 1; fi
+	docker run --rm -v "$$(dirname $$(realpath $(FILE))):/data" pandoc/extra \
+		"$$(basename $(FILE))" \
+		-o "$$(basename $(FILE) .md).pdf" \
+		--pdf-engine=xelatex \
+		-V geometry:margin=15mm \
+		-V fontsize=9pt \
+		-V lang=en