+ If you are on a Debian based system (Devuan, Ubuntu, Mint etc) that is reasonably new (I use Ubuntu
+ 18.04 and Debian 10) then you can simply do:
+
+ sudo apt-get install libev-perl libmojolicious-perl libjson-perl libjson-xs-perl
+
+ or on Redhat based systems you can install the very similarly (but not the same) named
+ packages. I don't the exact names but using anything less than Centos 7 is likely to cause
+ a world of pain. Also I doubt that EV and Mojolicious are packaged for Centos at all.
+
+ If in doubt or it is taking too long to find the packages you should build from CPAN. Note: you may
+ need to install the essential packages to build some of these. At the very least you will need
+ to install 'make' (sudo apt-get install make) or just get everything you are likely to need with
+ sudo apt-get install build-essential.
+
+ sudo cpanm EV Mojolicious JSON JSON::XS
+