> What does that even mean.
Outsider design? It means it’s designed by someone self-taught or not classically trained in the subject. It’s neither insult nor praise, it’s a classification, though often used as a way to express something as being unconventional and interesting.
https://en.wikipedia.org/wiki/Outsider_art
https://en.wikipedia.org/wiki/Outsider_music
> It is design produced by the user and maker of the app. If you hire a designer that's neither, doesn't that actually make them the outsider?
No, because it refers to “outside the world of design” not “outside the world of this product”. It’s two words but a single term.
> He's not making a traditional art form as someone who's untrained.
Your parent comment didn’t claim they were making art. But they are designing the app are are clearly untrained in design. Again, that’s not an insult. How many of us here are self-taught programmers?
> He's designing Calibre, and he's the most qualified person in the world in doing that.
That doesn’t necessarily follow. If that were the case there would be no designers, everyone would just do their thing. The point of learning design is to understand what works and why and how to apply it. It is perfectly valid for you to have a vision of what you want the thing to do but to need help in presenting it more effectively.
Outsider art, outsider music refer to art, and even in those practices a lot of celebrated artists are the ones that eschew the established norms.
But design is functional. Grows organically by needs of the user. If so many people swear by Calibre, it is well designed for calibre’s use case. It is not only about the aesthetic design trends. They don’t need to apply a coat of liquid glass and modern icon treatment to make it well designed. Software like Calibre are a toolbox full of screwdrivers and random things that are not in the same color hue and size and rounded corner treatment. You open the toolbox and immediately know what you need to reach for and where, get the job done and close it.
This appeal to authority is why we end up with everything looking like Juicero of software. Shiny, the same components and pricing plan as everything else. But absolutely soulless and often user hostile.