It's not easy, and probably involves rethinking things like the basic assumptions of a traditional POSIX-style environment. But I think it's a necessary featur

It's not easy, and probably involves rethinking things like the basic assumptions of a traditional POSIX-style environment. But I think it's a necessary feature these days, and I hope it eventually becomes commonplace in Linux, or perhaps there will one day be a plausible Linux-replacement.