Comment by 2001zhaozhao

What we really need is well-built open source software base with flexible and well-documented plugin SDKs where people can just vibecode their own extensions on top of them. The software needs to be designed from scratch expressly for the purpose of being extended in this way, and the SDK should place appropriate limits to allow multiple extensions to be combined easily.

Otherwise, there is too much you have to do right before you have a suitable software base to start building your extra personalized features on. Building on existing open-source software (not designed to be extended on) isn't great either because you would need to merge any changes from the original software into your fork, as opposed to a purpose-built SDK that would better tolerate plugins on different base software versions.

I'm working on this for gaming but the idea is really applicable to any kind of software, if the goal is to allow people to easily create and run personalized versions of them without as much effort and chance for things to go wrong.