Building intuitive command-line interfaces in .NET
summary
Builds a working Atari Lynx emulator CLI and a ROM converter using System.CommandLine, with demos on .NET 6/.NET Standard; shows model binding that converts strings to FileInfo/enum/int, validation (existing files, ranges), middleware interception, command hierarchies, and global tool tab-completion. Shows DragonFruit for one-file CLIs and Spectre.Console for progress bars and interactive prompts. Demonstrates graceful cancellation (Ctrl+C), parser/debug directives, unit testing via IConsole, and that the demos actually run and produce expected output.
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chapters (10)
- 0:00Start
- 7:51Command syntax
- 8:39Command-line lifecyde
- 21:26Middleware pipeline
- 23:32Model binding
- 30:47Making it intuitive
- 32:16Suggestions and typo corrections
- 33:16Debugging tips
- 40:23Comparing CLI frameworks (opinionated)
- 40:41Summary








