spacemeowx2 has started a new 'work-in-progress' project called switch-lan-play and with his current v0.0.4 release, you can already try it out by connecting to: Public Relay Server(s): 35.236.10.223:11451, and start enjoying playing Switch games remotely with your friends like you were in in-home LAN setup.
Compatible Games (tested):
✓ Mario Kart 8 Deluxe
✓ Splatoon 2
✓ Pokkén Tournament
✓ ARMS
✓ Titan Quest
✓ RetroArch (Retrogaming {Hombrew})
✓ Mario Tennis Aces
How to enable LAN mode ingame:
SPLATOON 2: Press [L] + [R] + [Left Analog] at the local play option > Hold down until the lan mode is activated.
MARIO KART 8: Press [L] + [R] + [Left Analog] on the main menu screen.
ARMS: Press [L] + [R] + [Left Analog] on the main menu screen.
MARIO TENNIS Select Free Play from the Main Menu Press [Left Analog (hold down)] and press [L] + [R]
POKKEN TOURNAMENT DX From the main screen select a game Press [X] + [Dpad-Down] and press [L] + [R]
GBATemp tutorial on how to set it up HERE.
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