Let's take a very atomic example, that becomes a problem at scale: say you want to change the primary button color across all your apps (for accessibility reasons, for example). If you have 50 codebases where this color is applied in many different ways (naming, color format...), it's a real struggle. You're going to waste time, miss spots, and the user experience will be inconsistent.
Now imagine rolling out dark mode across an entire suite of products, or perhaps a brand refresh.
Having a single source of truth and tooling that supports it end to end from design to engineering helps roll out changes fast and on brand. In turn, it's good for the user!
I know a lot of folks here may come from a more backend background so it may help to think of it as: a way to unlock continuous delivery for your design decisions.
Now imagine rolling out dark mode across an entire suite of products, or perhaps a brand refresh.
Having a single source of truth and tooling that supports it end to end from design to engineering helps roll out changes fast and on brand. In turn, it's good for the user!
I know a lot of folks here may come from a more backend background so it may help to think of it as: a way to unlock continuous delivery for your design decisions.