The small upvote and downvote nav buttons at the bottom right of the page are make with lyket.
This is a demo configuration.
lyket: api_key: "xxbadsjflkdjwe" lyket_type: "updown"
To get the api token, sign up and copy the API token.
KausalFlow (2021). 'Upvote Button at the Bottom of the Page', Connectome, 05 April. Available at: /tutorials/upvote-button-at-bottom/.