I don&#x27;t agree with the idea that Cargo is just going to magically make all fragmentation disappear, simply because it&#x27;s convenient, good, and available. If this were true, I would suspect we&#x27;d have seen some of this fragmentation stop in these other ecosystems: it hasn&#x27;t, despite excellent tooling.<p>I&#x27;m not suggesting a Python-esque stdlib. I&#x27;m suggesting a multi-threaded, cross-platform, (ideally, edge-triggered) event system, above which higher level primitives can be introduced and safely interoperate.<p>If Rust already has std&#x2F;net, this is not that far of a gap to close. Granted, implementing a reactor or (higher level) green threads greatly affects the way your programs execute, in my opinion, the benefits of a &quot;blessed way&quot; would outweigh the problems.<p>Also, as with all of those languages with fragmented ecosystems: nothing is preventing a developer from implementing their own solutions, they&#x27;re just heavily encouraged to be compatible.