One of the most interesting things about design systems is how many of them are public—maybe not open source, but public so that we can all learn from them.
The earliest truly public, documented design systems showed up in the early 2010s. There isn’t a single “first,” but a few set the tone. GOV.UK published openly and became the public‑sector benchmark. Google’s Material landed in 2014 with a comprehensive spec. Salesforce’s Lightning started surfacing around 2013–2014 and matured mid‑decade. IBM’s Carbon followed soon after. Earlier frameworks like Bootstrap and Foundation (2011) acted like de facto systems for many teams, but they weren’t a company’s product design system made public.
PJ Onori says that public design systems are a “marketplace of ideas.”
Public design systems have lifted all boats in the harbor. Most design system teams do the rounds to see how other teams have tackled problems. Every system that raises bar puts healthy pressure on others to meet or exceed it. This shared ecosystem may be the most important facet of the design systems practice.
Onori also says that there may be a growing trend to shut down public design systems:
There’s a growing trend to close down public systems. Funny enough, the first thing I did when I left Pinterest was clone the Gestalt repo. I had this spidey sense it wouldn’t be around forever. Yes, their web codebase is still open source, but the docs have gone private. That one stung. Gestalt wasn’t the first design system to be public. It wasn’t the best one either. But it’s hat was in the ring–and that’s what mattered.
But that’s only one design system, right? Sadly, I’m hearing more chatting about mounting pressure to privatize their systems.
This is an incredibly shitty idea.
Why? Because that’s how we all learn from each other. That’s how something like the Component Gallery can exist as a resource for all of us.
Open design systems are the library for people wanting to get into design systems. They’re a free resource to expand their understanding. There’s no college of design systems. Bootcamps exist, but they’re bootcamps–and I’ll leave it at that. The generation who shaped design systems didn’t create universities–they built libraries. Those libraries can train the next generation once people like me age out. When the libraries go, so does the transfer of knowledge.

Public design systems are worth it
It’s incredibly valuable to make a design system available to all–no matter what the bean-counters say.























