[Install] WantedBy=default.target
The most reliable approach for Steam Deck is command-line V2Ray core with a systemd user service . It runs quietly in the background, works in both Desktop and Game modes, and survives system updates (reinstall only if Pacman packages are wiped). Avoid GUI clients – they add unnecessary overhead on the Deck’s constrained resources. steam deck v2ray
v2ray run -config ~/.config/v2ray/config.json Press Ctrl+C to stop after confirming no errors. [Install] WantedBy=default
sudo steamos-readonly disable
"protocol": "socks", "port": 10808, "settings": "auth": "no", "udp": true , "tag": "socks-in" , "settings": "auth": "no"