TYBLE16 will become mbed chip! You can compile as a BBC micro:bit on the mbed (not mbed-os5).

Dependencies:   TextLCD mbed

Please see follows.
/users/kenjiArai/notebook/tyble16-module-will-become-a-mbed-family--mbedliza/#

mbed.bld

Committer:
kenjiArai
Date:
2017-10-29
Revision:
0:64039a43c2e1

File content as of revision 0:64039a43c2e1:

http://mbed.org/users/mbed_official/code/mbed/builds/fb8e0ae1cceb