The thing about tiny islands isn't that every tool needs a sprawling ecosystem to thrive. It's that applications that don't develop a userbase tend to die. This is as true of open source apps as it is commercial ones.

Typically, applications develop a userbase when they offer something that people can't find elsewhere.

What I'm saying isn't "everyone should be using VScode extensions for this"; it's "I see nothing to distinguish this from a bunch of other functionally identical applications and people just keep building them." I literally don't see a single unique feature promoted on the landing page.

My fundamental point is that we're in a gold rush phase where people are all building the same thing. We'll eventually see a handful of apps get popular and effort swell around those instead of everyone reimplementing the same thing. And my money is on that looking a lot like it usually does: the winners will be the apps that find some way to differentiate themselves.