[Zak]

That would be solvable by making the app open source, or by publishing the protocol so third parties can make software for it.

[oulipo]

Hi! We might open source it at some point, although the app itself is just a thin client, and most of the code is on the battery and the backend

[Zak]

The main concern is confidence that the product will remain usable even if the company goes out of business or pivots and abandons this product. Being a thin client is great from that perspective because there's little incentive to keep it proprietary, and it should be easy for a third party to maintain if the company abandons it.