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You can order PCBs via links on dirtypcbs.com.
You'll have to flash the bootloader to the microcontroller before usage. This can be done either with a socket tool or on a prototyping board.
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The RFM22B is soldered with the crystal oriented towards the switch.
On the bottom side, there is only RFM22B, soldered with the crystal oriented to the connector side of the PCB.