TVPort brings Switch games natively to Apple TV 4K, powered by Claude

A Redditor has released TVPort, an open-source toolkit that recompiles Nintendo Switch and Switch 2 games to run natively on an Apple TV 4K — with help from Anthropic's Claude. The project's author, who posts as u/FloatingFalafel, credits Claude Opus 5.5 for the work and reports that Super Mario Odyssey runs at 60 frames per second on the set-top box, with only occasional stutters and some audio glitches near waterfalls.

The claim matters because it lands in the middle of a growing and contentious trend: people using AI coding tools, particularly Claude Code (Anthropic's command-line coding agent), to decompile, recompile, or clone existing software. Some have reverse engineered subscription-based applications, including Adobe's Creative Cloud apps, to assemble their own versions. Others have attempted to port video games to new platforms and browsers, with results that range from impressive to barely functional. TVPort is one of the latest and most striking entries in that category.

What does TVPort actually do?

TVPort is a fork of the nxnative toolkit, and it runs on a Mac: the user recompiles Switch and Switch 2 game code on the Mac for use on the Apple TV 4K set-top box. This is native execution, not emulation in the conventional sense — the software is rebuilt to run on the target hardware rather than interpreted in real time.

The author says most games behave essentially as they do on the Switch, with a caveat. "Most games run essentially the same on the Switch, but some load textures into memory differently and need to be diagnosed and fixed before the game will run properly," u/FloatingFalafel wrote. The parenthetical matters: "some" games require per-title diagnosis and fixes, which means the toolkit is not a one-click solution and likely never will be without sustained engineering per game.

Beyond recompilation, TVPort offers two practical features the author claims: it backs up save files to a Mac or to iCloud, and it lets users choose between target framerates of 30 fps and 60 fps. Save preservation is not a trivial detail for anyone who has sunk hundreds of hours into Animal Crossing; it suggests the project is being built with actual play sessions, not just proof-of-concept demos, in mind.

How well do specific games run?

The reported results split by title. Super Mario Odyssey reaches 60 fps, with what the author describes as "very slight stutters on occasion and some audio issues around waterfalls specifically." The precision of that complaint — audio problems localized to waterfalls — reads like a genuine bug report rather than marketing copy.

Animal Crossing: New Horizons appears limited to 30 fps, though u/FloatingFalafel says they encountered no issues with it. A locked 30 fps for a life-simulation game is a reasonable trade; for a fast platformer it would not be.

The Legend of Zelda: Tears of the Kingdom is the hard case. The author states the game needs more work and experienced thermal throttling on the Apple TV during tests — the set-top box's cooling could not sustain the load. "In order to get games like TOTK running, there are serious diagnostics and even partial rewrites of the game's engine as a patch in the program," u/FloatingFalafel stated. "Heavier games like TOTK might never run on the Apple TV 4K 3rd-gen." That admission sets a hard ceiling on the project: the current flagship hardware may simply lack the thermal headroom, no matter how good the recompilation gets.

It is also worth noting who is behind this. The same Redditor says they are working on native Switch ports for the Xbox Series X. TVPort is therefore not an isolated experiment but one node in a broader personal effort to move Switch software onto platforms Nintendo never intended.

What about the legal and ethical questions?

The TVPort repository contains no game files. Anyone who wants to experiment must supply their own — legally obtained from their own Switch cartridges, as the source pointedly adds. That framing follows the convention established by emulator and recompilation projects: distribute the tool, not the copyrighted content.

The tooling question is murkier. AI-assisted porting is contentious within the decompilation community itself, not only among rights holders. The operators of decomp.dev, a prominent website in the decompilation space, recently announced they were shutting it down, saying the "community aspect of decompilation has been broken" by bad actors using AI. Their complaint was not that AI-assisted porting fails to work; it was that it works well enough, cheaply enough, that the human collaborative culture around the practice eroded.

Anthropic, for its part, has since instructed Claude Code not to recreate existing games. TVPort exists in the gap between that policy and practice: a project built with Claude Opus 5.5, released openly, demonstrating a capability the model's maker has now explicitly tried to restrict. Whether such instructions meaningfully constrain determined users — or simply push the work toward less documented methods — remains an open question, and the source offers no evidence either way.

Why does this matter beyond one Redditor's demo?

For Apple, the project is an unplanned advertisement. The Switch is almost ten years old, and even at launch in 2017 the console was underpowered relative to its contemporaries. That a $129-class set-top box — a device most owners use for streaming reruns and MLS matches — can run a flagship Switch title at 60 fps says something about how much headroom the Apple TV 4K carries as a gaming device. Apple has invested in its own gaming push, and TVPort demonstrates the hardware is not the bottleneck.

For Nintendo, the pattern is familiar and unwelcome. The company has spent years fighting emulation and unauthorized ports, and AI-assisted recompilation lowers the technical barrier for exactly that kind of work. A tool that once required a skilled reverse engineer can now, apparently, be assembled with an AI agent and a Mac — though the Tears of the Kingdom result shows the barrier has lowered, not vanished.

For the AI industry, TVPort joins a lengthening list of Claude Code projects that push software across platform boundaries, sometimes against the wishes of the software's owners. The takeaway is straightforward: AI coding tools have made cross-platform recompilation practical enough for hobbyists, and the legal, thermal, and community limits — not the models — are now the binding constraints.