Save the LetsEncrypt.xml file to the C:\ProgramData\UniversalAutomation\Repository\pages folder
Create a New Script called New-LetsEncryptCertificate.ps1. Copy the contents of the ps1 script here into that file and save it.
NOTE: You'll need to update the section around the mailing of the certifcate in the $mailProps
hashtable starting on line 47 to be pertinent to your environment.
You'll need a CloudflareToken
Secret variable, with the value being the API Key token for your Cloudflare account. You can set this up by logging into Universal and navigating to Platform > Variables in the left-hand navigation menu.
Information on setting that up can be found here
You'll likely need to restart your PowerShellUniversal service to pick up the changes.