I wrote a simple, stupid program[1] that showing LKML[2] mails in terminal briefly like twitter livestream in Go language. It is just an early version and so many things to be complemented exists, though. Nevertheless, now it just works as I wanted at first.

References

[1] https://github.com/sjp38/lkml
[2] https://en.wikipedia.org/wiki/Linux_kernel_mailing_list