Nintendo 3DS savedata containers use an AES MAC that cannot be emulated without the 3DS's keys, thus a resigning service is required (svdt, save_manager, or SaveDataFiler).
Use the Debug or Release build configurations when building using the .NET Framework. Use the Mono-Debug or Mono-Release build configurations when building using Mono.
PKHeX's QR code generation code is taken from [QRCoder](https://github.com/codebude/QRCoder), which is licensed under [the MIT license](https://github.com/codebude/QRCoder/blob/master/LICENSE.txt).
PKHeX can be opened with IDEs such as [Visual Studio](https://www.visualstudio.com/) or [MonoDevelop](http://www.monodevelop.com/) by opening the .sln or .csproj file.
Install [MonoDevelop](http://www.monodevelop.com/) and [Mono Runtime](http://www.mono-project.com/) with `flatpak install --user --from https://download.mono-project.com/repo/monodevelop.flatpakref`. GNU/Linux is not the main Operating System of developers of this program so there may be bugs; some may come from non GNU/Linux specific code of Mono (so developers using *BSD, Windows and OS X should be able to reproduce them).