Custom Slicer in Power BI

https://www.dropbox.com/s/4lbs0zlm799fi6n/Planning_Aid.pbix?dl=0
(please check above link for pbix file)

I need to be able to slice my data to show which MACHINES do not have any red PACKAGES

I'd like to be able to see which sites / computers ARE ready to migrate (100% "YES")

Can probably be achieved simply enough using CONTAINS but I don't know anything about BI!

Please send proof of solution (screenshot / video / file) to win proposal,

Thanks.

Current situation:
Windows 7 Machines (Computers) have multiple Packages (Applications) installed.
Some of these PACKAGES ARE ready for Windows 10 (PACKAGE.Resultant Readiness = "YES") [GREEN]
Some of these PACKAGES ARE NOT ready for Windows 10 (PACKAGE.Resultant Readiness = "NO") [RED]

A Windows 7 Machine is ready for Windows 10 ONLY when ALL of its associated PACKAGES have a Resultant Readiness = "YES" (or, in other terms, when none of its associated packages have a Resultant Readiness of "NO")

It's currently easy for me to tell which Location / Systems are NOT ready to migrate by slicing on Resultant Readiness = "NO" (this shows me the packages that are holding up migration for each Location / System)

I'd like to be able to see which sites / MACHINES ARE ready to migrate (100% "YES")