Keybase public files (and maybe your own private files?) should be searchable with Spotlight on OS X

I'm not sure if this is even possible, given KBFS' reliance on an internet connection and lack of local cache - and of course the issues related to the encryption. However - I think that there should be an optional feature to allow KBFS files to be searchable via OS X's Spotlight search. This could be done by using an MDS extension to index the /keybase/ folder by storing an unencrypted cache when the user is logged in (and delete it when the user logs out). It would be useful to search the public folders you have loaded up in KBFS, and also your private files, at the very least to search by filename.

No files, tests, or entry points are named. Start by investigating whether KBFS can support an optional OS X Spotlight integration given its internet, cache, and encryption constraints; define the login/logout lifecycle and filename-search scope before identifying implementation points and validation steps.