Source-available has a very misleading nature, and as such is commonly used for openwashing. You can read the source, but you can't really do anything with it. That's not how it usually is when you are given access to the source code. Companies such as Anytype market their source-available product as "Open Code" or similar. They are carefully avoiding the term "Open Source", but they still make many ambiguous claims of openness. Tuist is doing the same thing:

> As you might know, we aim to make Tuist a fully open project.

> So I think a fully open Tuist platform could unfold this way: [...]

The intention is clearly to NOT be fully open.

> We can only build the best in class productivity platform if we embrace openness.

They are not embracing openness. They are trying to reap the benefits that come with being open, such as code contributions and a higher level of trust, while not actually being open.