Slack webhook notification for new sales, but without Slack. Is there such a tool?

Hey there!

I have a few different indie projects running in parallel and I'd like to notify myself when some key events happen in either of them, like a profile creation etc.

My first thought is to setup a Slack workspace with only me, and then send webhook messages to different channels there. However, I'm wondering if there are other superior services for "notification" management like this?

I have good analytics suite setup so I can easily see the numbers retroactively already, but nothing beats that sweet "ding ding" of a new sale.