Installation process is subject to change. Currently, Voile doesn't have a dedicated NuGet package and template, so the only way to obtain it is by using it as a git submodule and referencing Voile's .csproj in your project.
Installing Voile as a Git submodule
Create a new console project hosting your game with dotnet new console.
Add Voile as a Git submodule with git submodule add <REPOSITORY PATH>. For more information about submodules, refer to the official manual.
Include Voile.csproj in your project's .csproj file. Example: