Using asdf to become omnipotent

 ## Node - setup

asdf plugin add nodejs

asdf install nodejs latest

asdf global nodejs latest

### Node - versions (May 2022)

* node v18 has 'glibc' errors in some envs

  * so use "16.15.0" instead of "latest"

* npm 8.5 is recent

  * npm install -g npm@8.10.0

* npx 10.2.2

## Python - setup

asdf plugin add python

asdf install python latest && echo "finally"

asdf global python latest

asdf local python latest

asdf shell python latest

## Perl

To try.