GNU/Linux Oracle 9 Installing Rider IDE – Step by step Guide
How to Install JetBrains Rider IDE on Oracle 9 GNU/Linux desktop – Step by step Tutorial.
And Rider for Oracle Linux supports .NET Framework, the new Cross-Platform .NET Core, and Mono based Projects.
This lets you Develop a wide range of Applications including .NET desktop Apps, Services and Libraries, Unity Games, Xamarin Apps, ASP .NET, and ASP .NET Core web Apps.
Especially relevant: this Easy Setup for Linux make use of the Flatpak, that is a Technology for Building, Distributing, Installing and Running Linux Apps.
Finally, this guide includes detailed instructions about to Getting Started with Rider IDE on Oracle Linux.

1. Setting Up Flatpak
How to Setup Flatpak on Oracle Linux
2. Installing Rider
Then to Install Rider IDE on Oracle Linux
For the Community Edition simply run:flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
For further Insight see the Flatpak Official Documentation.
And after:flatpak install https://flathub.org/repo/appstream/com.jetbrains.Rider.flatpakref
The Flatpak App Setup do Not need the sudo Command because then it Runs confined into a Sandbox.
However, you’ll be Prompted to Authenticate with your User’s Admin Pass.
Then Confirm the proposed Setup with ‘Enter’ and Wait patiently until the App is Downloaded and Installed.
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