GNU/Linux Ubuntu Installing Lazarus Guide
You are Welcome! The Tutorial Shows You Step-by-Step How to Install Lazarus IDE Release for Ubuntu GNU/Linux Desktop.
And Lazarus IDE for Object-Pascal/Delphi is a Free Cross-Platform visual Integrated Development Environment (IDE) for Rapid Application Development (RAD) using the Free Pascal Compiler, which supports Dialects of Object Pascal, to varying Degrees.
Furthermore, the Software Developers use Lazarus to Create Native-Code Console and Graphical User interface (GUI) Apps for the Desktop, and also for Mobile Devices, Web Apps, Web Services, Visual Components and Function Libraries (.so, .dll, etc., for use by other programs).