Who am I?

• Koen Van Looveren
• Freelance Developer
• Focus on Flutter
• Flutter Belgium organizer
• Webflow & Serverpod enthusiast

What is this talk about?

• What is a cli?
• Why do you need a custom cli?
• Why use dart for your cli?
• How to write one?
• How I use one?
• When not to use a custom cli?

What is a CLI?

• Command Line Interface
• Interactive
• flutter / dart = cli
  • flutter doctor

Why do you need a custom cli?

• Simplify company tasks
• Use dart for everything
• Prevent context switching
• (But we already have fastlane?)

Fastlane or fastpain?

• Ruby
• Gem vs Brew
• Cocoapods
• Dev environment issues

Why use dart for your cli?

• 1 programming language for all
• No context switching
• AOT cli compilation
• Runs anywhere
• No dev environment issues

How to write one?

Packages to recommend:

• cli_spin
• args
• cli_completion

DEMO TIME

How I use one?

DEMO TIME

When not to use a custom cli?

Explain why you don't want a custom cli

• Not ready for maintenance?
• No custom implementation needed
• Fastlane is working perfect for you
• You don't like a fun side project