GuardClauses VS Gui.cs

You could also use the Ardalis Guard Clause, Ardalis Result and Fluent Validation

Here is an example how one would make sure our order total is valid. For this purpose I use an amazing library called GuardClauses.

GuardClauses

I'm guessing it's just a port of Ardalis' Guard class since he helped a lot with Microsoft's web projects.

The Guard Clauses are from: https://github.com/ardalis/GuardClauses

In terms of readability concerns, I definitely hear you on that. Using something like this can cut down on code bloat that comes with param validation and help with readability.

It's made by Ardalis, who wrote Microsoft's architectural guide for ASP.NET Core Web APIs. I like his GuardClauses library too.

Thanks but I'm sticking with Terminal.Gui

Used this neat library to handle the GUI gui-cs/Terminal.Gui: Cross Platform Terminal UI toolkit for .NET (github.com)

Terminal.GUI - cross platform terminal UI for .NET: https://github.com/gui-cs/Terminal.Gui

Two I've used are Terminal.Gui for .net https://github.com/gui-cs/Terminal.Gui and BubbleTea for Go https://github.com/charmbracelet/bubbletea

In that case you can use console (https://github.com/gui-cs/Terminal.Gui) to make games.

As you can see the tool is always integrated into the terminal because it has built on a cross platform UI toolkit based on a fantastic open source project called Terminal.Gui. Now you can select the objects by using space bar and than confirm the selection with enter. The result will be:

C# - https://github.com/gui-cs/Terminal.Gui

Since you mentioned minimal GUI, have you thought of a TUI? I haven't spiked it out but I would guess Terminal.Gui would work with Native AOT

I've had to resort to make TUIs with https://github.com/gui-cs/Terminal.Gui because there's no sane way to make a GUI app in Linux without a 300-files boilerplate or obscure languages.