I love when people talk about stuff and not providing information. Well, I have to reverse engineer what they're talking about and find what they're talking about. Here's the link for what they're talking about.

Start9 Marketplace

Explore open source services offered by Start9 and the Start9 Community.

By the way, I don't trust cake wallet. Cake wallet wasn't on f-droid, and it's now on f-droid. F-droid is somehow being controlled by people in power in the United States. In my opinion, I don't have proof, but I have very good intuition. The rule of thumb is, if you can find it on the Play Store, it is definitely controlled. If you can find it on F-Troid, it is somewhat controlled. If you can only find it on GitHub, and people are talking about it may be slightly controlled. But if you can't find it at all, that means it's not controlled.