I finally got around to getting DECnet running on the latest release of Raspbian for the Raspberry Pi (the 2019-7-10 Buster release). I’ve also done some (very) limited testing on Debian Buster (both 32- and 64-bit x86 kernels). For anyone who is interested the code is available at:
<https://github.com/JohnForecast/RaspbianDECnet <https://github.com/JohnForecast/RaspbianDECnet>> John.