I used fpcupdeluxe to downloads and install everything from trunks.
However the 1.9.0 / Cocoa combo seems to error easily. If I e.g. in "install packages" search for indy by typing "i" it crashes.
I then tried to recompile IDE in carbon (and then just using cocoa when building my software) but that fails in CarbonProc unit with error
carbonproc.pp(563,13) Error: Identifier not found "ATSUFindFontFromName"
(and many similar)
But The Cocoa IDE seems very close to complete and working - just a shame about the errors. I would be happy if I could recompile as Carbon though.