https://youtu.be/10VBTcN8gAo?feature=shared&t=133
Ash Framework was created to solve a fundamental problem in (web) application development for business apps. When you build a new app, you want to focus on the valuable, innovative parts - what's visible above the waterline of the iceberg. However, modern web applications require an enormous amount of "below the waterline" functionality that's essential but not where you want to spend your time.
Running a consultancy and building various client projects highlights this challenge. Everyone wants to focus on the core, valuable features, but must also deal with relatively boring, commodity problems that have been solved countless times before. This often means reinventing the wheel, which clients understandably see as low-value work.
Authentication is a perfect example - most customers don't even specify login functionality as a feature. Similarly, admin interfaces are considered table stakes for modern applications. The list is extensive: admin UIs, observability, security, and more. All important, but time spent there can feel wasteful when you'd rather be innovating.
Ash's primary goal is to keep you focused on the innovative work above the waterline while minimizing time spent below it. The framework accomplishes this by modelling your domain and deriving everything else.