Took more time than planned.
Voilá, more community Pycom MicroPython firmwares, including :
24 firmwares without ulab, in combinations of 6 xxPy boards, Pybytes or not, single/double precision;
21 firmwares with ulab, in combinations of 6 xxPy boards, Pybytes or not, single/double precision. 3 LoPy/SiPy/WiPy firmwares with ulab and Pybytes combinations are not possible due to the small firmware partition size of these boards. These firmwares with ulab have 'MICROPY_PY_REVERSE_SPECIAL_METHODS' enabled to allow '1 + np.arange(10)', for example.
Announce with more details in 'Pycom firmwares with single/double precision and ulab module' topic.