This workflow is essentially an Alfred port of this handy script.
- SelfControl (obviously)
- Usable Keychain Scripting (useful tutorial for that here)
To use, first follow the setup instructions inthe above-linked Macworld post. The workflow uses to keywords:
work: this runs SelfControl for the specified amount of time (in minutes). Defaultis 45 minutes.
block this adds the entered URL to SelfControl's blocklist