update readme and fix poetry install

README_AURACAST_SYSTEM.md

@@ -1,8 +1,9 @@
 # Build
 - Always use the docker build script
- - sudo CONTINUE=1 bash build-docker.sh
+ - sudo bash build-docker.sh
 
  # System
+- Extended stage2 with customizations
 - this builds a 'lite' version of the system, featuring also basic development tools
 - deactivate wifi and bluetooth (wifi can be deactivated, bt has bt-disable overlay)
 - install docker

stage2/04-auracaster_customization/00-run-chroot.sh

@@ -33,13 +33,18 @@ fi
 # Use FIRST_USER_NAME if set, else default to 'pi'
 USER_TO_ADD="${FIRST_USER_NAME:-pi}"
 usermod -aG "$DOCKER_GROUP" "$USER_TO_ADD" || true
-
 docker compose version
+docker run hello-world
 
-# Install Python Poetry (official installer)
-curl -sSL https://install.python-poetry.org | python3 - 
-# Make Poetry available to all users
-ln -sf /root/.local/bin/poetry /usr/local/bin/poetry
+# Install Python Poetry for caster user (official installer)
+sudo -u caster curl -sSL https://install.python-poetry.org | python3 -
+
+# Ensure Poetry's bin directory is in caster's PATH
+CASTER_BASHRC="/home/caster/.bashrc"
+if ! grep -q 'export PATH="/home/caster/.local/bin:$PATH"' "$CASTER_BASHRC" 2>/dev/null; then
+    echo 'export PATH="/home/caster/.local/bin:$PATH"' >> "$CASTER_BASHRC"
+    chown caster: "$CASTER_BASHRC"
+fi
 
 # Install WireGuard
 apt-get install -y wireguard wireguard-tools