anchor.diff:  
   Or from source:
   
  -    $ brew install swig ykpers libu2f-host libusb
  +    $ brew install swig ykpers libusb
       $ pip install --user yubikey-manager
   
   ==== Windows
  
positive.code: 
  Options:
    -v, --version
    -h, --help     Show this message and exit.
  
  Commands:
    info     Show general information.
    mode     Manage connection modes.
    oath     Manage YubiKey OATH credentials.
    openpgp  Manage YubiKey OpenPGP functionality.
    piv      Manage YubiKey PIV functionality.
    slot     Manage YubiKey Slots.
  ....
  
  === Installation
  
negative.code: 
      $ pip install yubikey-manager
  
  In order for the pip package to work, https://developers.yubico.com/yubikey-personalization/[ykpers] and http://libusb.info/[libusb] need to be installed on your system as well.
  https://pyscard.sourceforge.io/[Pyscard] is also needed in some form, and if it's not installed pip builds it using http://www.swig.org/[swig] and potentially https://pcsclite.alioth.debian.org/pcsclite.html[PCSC lite].
  
  === Bash completion
  