Remind me that, On TidGi Desktop, we have build-in SSE to push change from server to the client immediately. It is based on Inter-Process Communication, so it won’t consume too much CPU, and it is safe on LAN (other people on local wiki won’t be able to sniffer your wiki, unless you explicitly allow them)
But in plain old nodejs wiki, it doesn’t have such a good thing. (Due to Add server sent events by NicolasPetton · Pull Request #5279 · TiddlyWiki/TiddlyWiki5 · GitHub )
You could install GitHub - twcloud/tiddlyweb-sse to solve it.