Via the bot (easiest):
- Open @SurfingVpnBot -> 🚀 Подключиться (Connect).
- Install Happ if you haven't yet.
- Tap ➕ Добавить подписку (Add subscription) — Happ opens and the subscription is added automatically.
- Pick a server and connect 🌊
Manually: in the mini app tap the link icon at the top -> QR code or copy link -> in Happ tap + at the top right and add from clipboard.