---

sudo mkdir -p /etc/apt/keyrings

sudo curl -fsSL https://sing-box.app/gpg.key \
  -o /etc/apt/keyrings/sagernet.asc

sudo chmod a+r /etc/apt/keyrings/sagernet.asc

sudo tee /etc/apt/sources.list.d/sagernet.sources >/dev/null <<'EOF'
Types: deb
URIs: https://deb.sagernet.org/
Suites: *
Components: *
Enabled: yes
Signed-By: /etc/apt/keyrings/sagernet.asc
EOF

sudo apt update
sudo apt install -y sing-box