Uranium is at full-swing full-time development at a private repository, release date is still unknown, but it won't be free and open-source anymore. However it will be source available upon gaining access, or pure C++ code reviewable before purchase and will be free for non-commercial or educational projects.
If you only want to use it in your project then you can just submodule https://github.com/microdee/Uranium.git into the project Plugins folder then ignore the rest of this guide.
If you'd like to develop it or make precompiled Engine plugins yourself, carry on reading:
Uranium uses Nuke with Nuke.Unreal to automate build tasks and chores usually associated with developing an Unreal project.
Just run build.cmd without arguments. If it complains about missing .NET 5 then install .NET 5 SDK too.
If you need to develop for a different Unreal Engine version than the default, execute
> .\build.cmd --target Checkout --unreal-version 4.26
If you have Nuke installed as a global dotnet tool you can avoid --target and execute the command from any subfolder:
> nuke Checkout --unreal-version 4.26
For now precompiled releases are not yet supported in Uranium (although it's one goal).
Using a custom instance of Unreal Engine maybe built from source:
nuke MakeRelease --custom-engine-path C:\Path\To\MyCustomEngine
or if you want to make that permanent you can edit the Build class in /Nuke.Targets/Build.cs by adding
public override AbsolutePath CustomEnginePath { get; set; } = RootDirectory.Parent / "MyCustomEngine"or make an installed build and register it as a custom engine distribution.