The GitHub Issues list is the place for discussion of Node.js core features.
For real-time chat about Node.js development use one of the platforms below
For IRC, go to irc.libera.chat in the #node.js channel with an IRC client or connect in your web browser to the channel using a web client
For Slack, there are two options:
Node Slackers is a Node.js-focused Slack community. Some Working Groups have discussion channels there.
The OpenJSF Slack is a Foundation run Slack with several Node.js channels (channels prefixed by #nodejs- are related to the project). Some Working Groups have discussion channels there.
The DEV Community Node.js tag is a place to share Node.js projects, articles and tutorials as well as start discussions and ask for feedback on Node.js-related topics. Developers of all skill-levels are welcome to take part.
Nodeiflux is a friendly community of Node.js backend developers supporting each other on Discord.