Cross-platform development with Visual Studio easy and comfortable. It supports:

Barebone embedded systems and IoT modules (see full list)
C/C++ Linux Applications
Native Android Apps and Libraries
Raspberry Pi and other Linux boards
Linux kernel modules (separate VisualKernel product)
Target your own devices and platforms with Extensibility API

CrossVcl is a set of tools for Delphi developers, which can create VCL applications for macOS and Linux with Embarcadero Delphi.

FireMonkey implementation for Linux
Start building UI Linux apps with Embarcadero Delphi and FmxLinux

HTML Component Library is a cross-patform and 100% native HTML rendering library for Delphi and Lazarus that brings all the power of HTML/CSS into desktop and mobile Delphi applications.

FireMonkey implementation for Linux
Start build UI Linux apps with Embarcadero Delphi and FmxLinux

FireMonkey implementation for Linux
Start building UI Linux apps with Embarcadero Delphi and FmxLinux

HTML Component Library is a cross-patform and 100% native HTML rendering library for Delphi and Lazarus that brings all the power of HTML/CSS into desktop and mobile Delphi applications.

PureBasic is a native 32-bit and 64-bit programming language based on established BASIC rules. The key features of PureBasic are portability (Windows, Linux and OS X are currently supported), the production of very fast and highly optimized executables and, of course, the very simple BASIC syntax. PureBasic has been created for the beginner and expert alike. We have put a lot of effort into its realization to produce a fast, reliable system friendly language. The full documentation can be found here.

Linux File Systems for Windows by Paragon Software is a unique tool which gives you full access to Linux volumes within Windows. Just plug your hard disk with ExtFS/Btrfs/XFS partitions into your PC and instantly work with any media on the Linux partitions.

FireMonkey implementation for Linux
Start build UI Linux apps with Embarcadero Delphi and FmxLinux