apt update && apt full-upgrade -y
===== Switch repos =====
sudo sed -i 's/bookworm/trixie/g' /etc/apt/sources.list
sudo sed -i 's/bookworm/trixie/g' /etc/apt/sources.list.d/*
===== Upgrade =====
apt update
apt upgrade --without-new-pkgs -y
apt full-upgrade -y
===== Cleaning & reboot =====
apt --purge autoremove -y
apt autoclean
reboot