Additional features (recommended extensions)

Beyond the user-requested baseline, the following capabilities pair naturally with LowMesh and are recommended for production meshes.

Time synchronization

• Cascaded GNSS time from gateways, or
• FTSP-style pairwise sync over mesh.

Accurate time improves GPS correlation, bulletin ordering, and forensics.

Emergency / priority traffic

• PRIORITY_ALERT flag in flags bitfield.
• Repeaters MAY use shorter queue or separate CSMA class for alerts.

Integrates with Notifications buzzer override policy.

Compression for text and files

• Zstandard or LZ4 on FILE_DATA when both ends advertise COMPRESS_LZ4 capability.
• Dictionary per channel for repeated JSON sensor logs.

Forward secrecy (advanced)

Pre-shared AES-256 is simple. For higher threat models, optional double ratchet sessions per pair can be layered inside payload on private channels.

Opaque binary RPC

For industrial use, define RPC_INVOKE (0x0901) with:

• methodId (uint16)
• cbOR args

Keeps core spec small while enabling vendor automation.

Regulatory profiles

• EU 868 duty cycle counters per sub-band.
• US FCC: LowMesh documents a 500 kHz US915 baseline for Part 15.247 digital-modulation alignment — see FCC — USA.

Expose regProfileId in beacon so clients can warn on misconfiguration.

Observability

Gateway exports Prometheus metrics:

• lowmesh_frames_rx_total
• lowmesh_dup_dropped_total
• lowmesh_frag_retx_total

Helps operators tune flood aggressiveness, TTL ceilings, and relay caps.