This is mine.
FWIW here's a Show HN from 2019 - https://news.ycombinator.com/item?id=20077177
replies(3):
FWIW here's a Show HN from 2019 - https://news.ycombinator.com/item?id=20077177
The gist of it, as mentioned in [4], is that you need to have a web server that implements checkStatus and saveConfig PUTs, and PUT and DELETE for saveBoard.
[1] https://github.com/apankrat/nullboard-agent
[2] https://github.com/luismedel/nbagent