Interesting Asterisk alternative?
https://www.opensips.org
A grid of imagemagick filters and blur level examples.
http://old.dylanbeattie.net/magick/filters/result.html
A fantastic way to fiddle with imagemagick functions and arguments without going through the hassle of writing your own PHP code.
https://phpimagick.com
A lovely collection of tilix color schemes
https://github.com/storm119/Tilix-Themes/blob/master/Themes.md
Maybe save Sarah some stress on her hands/joints?
https://home.cricut.com
Code editor developed by Github
https://atom.io
Mail client Brett recommended; collaborative editing features
https://sparkmailapp.com
Web server security scanning tool
https://cirt.net/Nikto2
Minecraft? Space? Well, there goes the rest of my life.
http://www.star-made.org