| Reliability | Custom PCB design for the system hardware. | The electronic components are assembled on a professionally manufactured circuit board. No manual wiring is needed. |
| Rust programming language for the system software. | Use a system language that focus on correctness and provides native support for testing. |
| Documented software anomalies. | Anomalies are documented and can be addressed later on by developers. |
| Autonomous | External RTC with a backup battery. | Local time is keep by a dedicated, high precision circuit. The backup battery allow the circuit to keep the time even when the system is not powered. |
| Automatic time synchronization with NTP. | No need for the user to enter the time manually, even after power lose. |
| Testability | TDD for software module. | Increase confidence of software working as expected. |
| Follow test-double names for testing. | Follow a standard, that helps developers to understand the tests structure and behavior. |