Here are the packages with brief descriptions (if available):

[detail level 12]

Npytest_selfie
Nplugin
NSelfieSettingsAPI
Nselfie_lib
NArrayMap
NAtomic
NCacheSelfie
NCommentTracker
NConvertToWindowsNewlines
NEscapeLeadingWhitespace
NFS
NLens
NLineReader
NLiterals
NParseException
NPerCharacterEscaper
NRoundtrip
NSelfie
NSelfieImplementations
NSlice
NSnapshot
NSnapshotFile
NSnapshotReader
NSnapshotSystem
NSnapshotValue
NSnapshotValueReader
NSourceFile
NTypedPath
NWithinTestGC
NWriteTracker