Homebrew Dictionary
This page aims to detail as many terminologies used within the Nintendo Homebrew community as in-depth as possible.
General
NAND
refers to the storage device which houses the system's software that is needed for general functionality. A collective snapshot of these files and partitions is known as a NAND backup.
Nintendo Switch
Software
AutoRCM
This refers to an environment where the Switch boots into RCM automatically, without the need of a jig.
Horizon, HOS, or HorizonNX
These all refer to the dedicated operating systems for Nintendo 3DS or Nintendo Switch. HorizonNX references the Switch's codename, so it refers only to the Switch OS.
Hardware
Mariko, or T214
These refer to the chipset used on any console made after late 2019. This includes Switch Lite, Switch (OLED Model), and the better-battery Switch. Units using Mariko chipsets are unhackable via software for the foreseeable future.
Better-battery Switch, redbox Switch, and V2 Switch
These all refer specifically to the full-size Switch that was advertised with better battery - with the product code of HAC-001(-01).
Erista, or T210, and V1
This refer to the original chipset used on all Switch consoles manufactured before mid-2018, before the better-battery Switch.
Please see this hardware table for more info regarding Switch console revisions.
fusee
This references fusee-gelee. It may also casually refer to tools or software that work alongside fusee-gelee's environment, like the fusee.bin payload used for Atmosphere.
Patched
This usually refers specifically to being patched against fusee-gelee. Although it's exceedingly rare, there may be other methods of getting into custom firmware on certain patched units.
RCM
This refers to Nvidia's Recovery Mode. This is where many Nvidia errors led to the discovery of fusee, thereby leading to custom firmware on the Switch.
Tegra X1
This refers to any version of the main processor used in the Nintendo Switch.
Alternatively, "Tegra" sometimes refers to any toolkit or diagnostic software that runs for processors in the Tegra processor family.
Please see this hardware table for more info regarding Tegra X1 revisions.