I found @kersing 's multiprotocol packet forwarder on github , supporting the new TTN gateway connector protocol.
How could i build this code for the MatchX MX1701 Gateway?
The MatchX Gateway is running the standard Semtech packet forwarder and HAL (4.0.1 / 5.0.1), using this platform:
BusyBox v1.23.2 (2018-05-23 13:46:57 CEST) built-in shell (ash)
Linux MXXXXXX 3.18.29 #21 Thu Jun 21 12:22:16 CEST 2018 mips GNU/Linux
OpenWRT CHAOS CALMER (Chaos Calmer, r49363)