This is a really good point. I think it gets to the heart of why libraries are more powerful than language features (though missing language features can hold b

This is a really good point. I think it gets to the heart of why libraries are more powerful than language features (though missing language features can hold back libraries). > It takes a lot of skills and deep understanding of the problem domain. A “Service runner” library needs expertise of how daemons work, process management, I/O redirection, PID files and so on. A CMS is not just about rendering fields with a datatype — it has inter-field dependencies, validations, wizards, generic renderers and so on. Even a simple “retry” library is not so simple.