Yuzu (emulator)

Yuzu (sometimes stylized in lowercase) is a free and open-source emulator of the Nintendo Switch. Yuzu was announced to be in development on January 14, 2018, 10 months after the release of the Nintendo Switch. It is developed in C++.
The emulator is made by the developers of the Nintendo 3DS emulator Citra, with significant code shared between the projects. Originally, Yuzu only supported test programs and homebrew, but as of July 2019, a handful of games work without issue. A list of games that are compatible with the emulator is maintained on the official website.
Features.
Yuzu uses a network service called Boxcat as a replacement for Nintendo's BCAT dynamic content network.
Yuzu also offers a resolution rescaling feature that simulates docked, undocked and beyond-native resolutions (beyond-native resolutions are temporarily disabled due to stability issues).
In December 2019, Yuzu added an experimental Vulkan renderer to its Early Access build and brought it over to its mainline builds. 
On May 9, 2020, the development team announced an update that included experimental multi-core CPU emulation codenamed "Prometheus".
In November 2020, Yuzu's developers added online functionality to the emulator but removed it shortly thereafter.
Reception.
In October 2018, "Kotaku" published an article noting that "Super Mario Odyssey" was playable. The author of the article expressed concern with the ability of Yuzu to emulate games that were available commercially at the time.
"PC Gamer" noted that the emulator was able to run shortly after the games' release, albeit with audio issues.
In October 2019, Gizmodo published an article noting that Yuzu was able to emulate some games at a frame rate roughly on par with the actual console hardware.