How to install Oneko in various places
Website
To easily install Oneko on your website, simply paste this code in the head section of your page:
Browser Extension
To install the Oneko browser extension, download the .crx file from here and then double click on it to install it.
Credits & Links
Mainly taken from adryd325, I just made it more accessible :3
You can find the current GitHub repo at github.com/eepyfemboi/oneko