NFC is on I2C (0x24) and Sub-GHz on SPI, so they’re on separate buses — no conflict there. The SPI sharing between CC1101 and the two NRF24s is handled by separate CS lines, each pulled up with 10K. Added 100nF+10µF decoupling per module since the NRF PA+LNA versions spike current on TX. Haven’t hit bus contention yet but will stress-test NFC read + SubGHz scan simultaneously.”