Use of Liquid variables in an IF condition

I would like to use Liquid in a Shopify Flow IF condition. Is this possible? If so, where should I enter my Liquid logic? (See image below.)

My workflow is scheduled to run every Monday: but I only want it to proceed if the following day (Tuesday) will be during the first week of the month (so 1st - 7th inclusive); otherwise I want it to quit. The default schedule-based triggers aren’t sophisticated enough to do that, so I am trying to create the same effect with an IF condition.

You can’t use liquid in the condition, but you can before the condition using Run code. In fact there are some examples here that are similar to your use case:

https://github.com/Shopify/flow-code-examples/tree/main/run-code-examples

Which is linked to from this page:

https://help.shopify.com/en/manual/shopify-flow/reference/actions/run-code

Thanks Paul - I didn’t know about the Run code action. I’ll investigate.