I made a macOS app [1] after reading this book that helps keep track of deep focus sessions.

[1] (free) https://itunes.apple.com/us/app/zen-time/id1089216789?mt=12

I made a free macOS app based on this technique: https://itunes.apple.com/us/app/zentime/id1089216789?mt=12

This would be a killer Apple Watch app.

Who needs an Apple watch? Timex digital watches have been dinging every 60 minutes for decades.

Agree, especially with just a gentle vibrating reminder that turned itself off after a second. I've tried a few of these, and the problem they all suffer is obnoxiously intrusive notifications. It's not an alarm clock, if I miss one it's fine.

Agree, it's more about noticing whether or not you're focused than it is being forced into a workflow.

Doesn't "Breathe" do this?

http://www.macrumors.com/2016/06/13/apple-breathe-app-for-ap...

This is a first

Miguel Grinberg created an awesome step-by-step guide for building Python Flask applications: http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-...

I agree Miguel's tutorial is fantastic for a step-by-step walkthrough. He also has a video to cover much of the material: http://pyvideo.org/video/2608/flask-by-example

If you're going down the Python route I'll throw in Full Stack Python http://www.fullstackpython.com/ I wrote FSP to provide beginners with context as to what these terms like web server, WSGI server and platform-as-a-service mean without assuming you have prior programming experience.

He now has a book, too: http://www.amazon.com/Flask-Web-Development-Developing-Appli...

Uhhh, thank you. I was interested in using Python, since it seems so omnipresent when you look at the it security space. So this might be a great alternative to PHP (at least for me...)