The @computer context: how do you break it up?

[Oogiem]

I'd love to hear how others break @computer up into smaller contexts.

Right now I have a bunch of @computer contexts due to a lot of things going on. I tend to break them up by application where possible.

I have a category for @Computer Mac and within that my separate contexts are

@ misc Mac
@Omnifocus
@LibreOffice
@Scrivener
@DEVONThink
@Quicken
@Android Programming
@Lightroom
@Finder
@Calendar
@Scanners
@Silhouette Cutter

Then I have @Computer MacBook, @Computer iPad, @Computer iPhone, @Computer Grassroots and then another larger category @Computer Internet with sub categories of

E-mail
Safari
GoDaddy
Fetch

For me switching applications is my biggest time waster so I try to do everything in one app before I switch.