[](https://discordapp.com/invite/ZdqEhed)
Atmosphère consists of multiple components, each of which replaces/modifies a different component of the system:
* Fusée: First-stage Loader, responsible for loading and validating stage 2 (custom TrustZone) plus package2 (Kernel/FIRM sysmodules), and patching them as needed. This replaces all functionality normally in Package1loader/NX Bootloader.
* Exosphère: Customized TrustZone, to run a customized Secure Monitor
* Thermosphère: EL2 EmuNAND support, i.e. backing up and using virtualized/redirected NAND images
* Stratosphère: Custom Sysmodule(s), both Rosalina style to extend the kernel/provide new features, and of the loader reimplementation style to hook important system actions
* Troposphère: Application-level Horizon OS patches, used to implement desirable CFW features
This software is licensed under the terms of the GPLv2, with exemptions for specific projects noted below.
You can find a copy of the license in the [LICENSE file](LICENSE).
Exemptions:
* The [yuzu emulator project](https://github.com/yuzu-emu/yuzu) is exempt from GPLv2 licensing and may (at its option) instead license any source code authored for the Atmosphère project as GPLv2 or later.
In no particular order, we credit the following for their invaluable contributions:
* __switchbrew__ for the [libnx](https://github.com/switchbrew/libnx) project and the extensive [documentation, research and tool development](http://switchbrew.org) pertaining to the Nintendo Switch.
* __devkitPro__ for the [devkitA64](https://devkitpro.org/) toolchain and libnx support.
* __CTCaer__ for the continued [hekate](https://github.com/CTCaer/hekate) project's fork and the [minerva_tc](https://github.com/CTCaer/minerva_tc) project.
