I just saw this video https://www.youtube.com/watch?v=NyphRo5roV0 about RPerl. Maybe I am missing something, but how can this be useful?

• If I want fast code, I can write it directly in C++, why would I use RPerl?
• As I understand it, I cannot use CPAN modules with rperl? They first have to be rewritten to comply with the restricted sub set of Perl? It feels like this is a major issue
• If I find a piece of a large perl program that needs optimization, how can I use rperl to optimize only that part of the code? Do I compile the code first into a shared library, and then load it at run time using DynaLoader? Then, why not just write an XS-module?

Note: I am not trying to criticize the project. I found it very interesting. I am just trying to understand how it can be used in practice. Thanks!

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