Fixing Open AI Retro Gym - Windows Integration UI crash

 I had trouble getting the Windows Integration UI to work - it kept crashing.  It turns out you need to drop the downloaded exe in your python retro package's install directory. You can find that directory using:

import retro

print(retro.__file__)

 See also: https://github.com/openai/retro/issues/159

Bookmark all tabs at once in firefox

You can bookmark all the tabs in the current window at once in Firefox (in 2020) using ctrl-shift-d.

via askvg

Sharing a mouse and keyboard between computers

I wanted to share a mouse and keyboard between two computers today. It happens to be between two Windows PCs, so I tried out Microsoft's Mouse Without Borders, instead of my usual Synergy (or US224 USB Sharing Device).

 I like it. It's easy to install, and has the settings I want.

• Benefits over Synergy: It's free (Synergy you need to compile from source, or pay for). 
• Benefits over my USB Sharing Device: Sharing Device takes several seconds to switch computers, Mouse Without Borders does not. 
• Downside to Mouse Without Borders: Windows only.