Hi, I’m having trouble installing therion on Mac OS 10.14.6. After installing all the additional programs via home-brew I get the following error message trying to install Therion itself:

brew install https://raw.githubusercontent.com/ladislavb/homebrew-therion/master/therion.rb
Error: Calling Non-checksummed download of therion formula file from an arbitrary URL is disabled! Use 'brew extract' or 'brew create' and 'brew tap-new' to create a formula file in a tap on GitHub instead.

Have any other Mac users come across this or shed some light on what i’m doing wrong?