I am probably using the term notifications a little loosely at this stage. I technically haven't used this approach for that purpose, though I intend to.
My first use of Tasker in anger was to turn on my tablet based on motion being detected from a hue motion sensor. I skipped over some of the steps involved in setting this up, but you can see some of the process here:
Although the Tasker plugin I have used is called AutoRemote, it is essentially sending a piece of text to Tasker that you respond to however you want, which could include generating a notification on the mobile / tablet. So you will need to still build a profile or two in Tasker to handle the "notifications" (HTTP calls) from HE, it's not a fully built solution I am offering.
More recently I have had grander plans to setup something broader, which I would like to include notifications, though I don't talk about it much in the conversation so far.
I would like to build options for actionable notifications, given it can be something that is cumbersome to setup, so having something pre-built that just requires configuration would be nice.
Anyway, I've probably hijacked your thread enough... 
Hopefully you can get something out of this.