Another popular misconception is this. Design Systems take a ton of time to build. It is easy to take a look at some of the most prominent ones that hit the front page of Designer or Hacker News and think, “wow, that must have taken for-ev-er!”
Companies that are brave enough to release their design system publicly typically have a couple of things under their belts.
First, they have a huge head start. They have likely invested into their system years ago. What you are seeing is the refined version that has gone through countless iterations.
Secondly, they often have a large team (if not one with Design Systems Engineering focus) so they are able to move much faster.
Now, it is like trying to say I am planning to duplicate an Apple product. That will be quite difficult indeed.
What you need is an MVP approach. Ask yourself this 3 part question and make sure you hit all 3 criteria
1. What can be built the fastest?
2. What can I build with the least effort?
3. What will burn less time?
This is likely the first step and a good place to target your Design Systems Engineer towards an MVP.