The glued-in charging coil separates easily from the housing, but remains soldered to the bottom board of the charging case.

The bottom board holds onto the soldered USB-C charging port, the pairing button, and some more chips:

ThinkPlus Semiconductor SY8801 smart charge power and communication chip

NuVolta NU1680 Wireless Power Receiver

Zbit Semiconductor, Inc. CX32L003F8 32-Bit ARM Cortex-M0+ Microcontroller w/ 64 KB Flash

We have to say, there definitely seems to be room for more modularity in these products—at least within the charging case. Dear Nothing, since you're already showing off those tech-tastic internals, why not make it repair-friendly as well?