The System Crafters community hangs out in a few places, YouTube comments (and live chat on streams), Discord, and IRC (also accessible with a Matrix bridge).
You can chat with us during System Crafters live streams!
During the live streams, David has both YouTube and Twitch comments up via Restream, meaning you can comment from either service (as long as it's working!). This is great for those of us who want to use IRC for comments, as Twitch enables commenting via IRC. Here's how to set that up (directions from this gist, but who knows how long Github keeps those up). Of course, you'll need a Twitch.tv account.
(erc-tls :server "irc.twitch.tv" :port 6667 :password "<your OAuth token>" :nick "<your nick>")
This is currently where the bulk of the community is hanging out. There are several emacs and guix focused topic channels as well as general topic channels like gaming, music, and showcases of what the community is up to. Here is the invite link to Discord.
(erc-tls :server "irc.libera.chat" :port 6697 :nick "YOUR-NICK" :full-name "YOUR-FULL-NAME")
It's also a good idea to cloak your user (so your IP address is hidden from a whois query). You can do that by /join #libera-cloak and then sending the message !cloakme. You only need to do it once for your NickServ account and it will cloak all your nicks anytime you connect.
IRC chatting is simple, stable, hackable, and craftable, but because it's an old protocol with roots all the way back to the beginnings of the world wide web it comes with some limitations. One such limitation is that you have to be online to read messages. To learn more about configuring and using a ZNC bouncer server to stay connected and up to date with messages, see ZNC Bouncer Server Setup.
Some may prefer to access the IRC channel using the [matrix] protocol clients like Element. Matrix bridges allow other protocols to be bridged with matrix. Matrix clients have an UX more similar to Discord and have some benefits like: it serves as a built-in bounce server (so you can see messages when you weren't online), it inline markup and code snippets, and the mobile app support is better. There are a few different ways to achieve this:
You can join a room directly by adding #systemcrafters:libera.chat to join with your Matrix identity. You don't have to register with IRC at all if you just want to keep using your Matrix identity since both Matrix and IRC users are treated as first class citizens.
In order to use Matrix you have to have a Matrix account but if once logged into the client (Element) you can invite @NickServ:libera.chat to a PM to register/identify your IRC nick. Then invite @appservice:libera.chat to a PM and !join #systemscrafters. In order to save your username by issuing the !username command followed by the !storepass YourP@assw0rd.
It's also a good idea to cloak your user (so your IP address is hidden from a whois query). You can do that by sending !join #libera-cloak to @appservice:libera.chat and then sending the message !cloakme. You only need to do it once for your NickServ account and it will cloak all your nicks anytime you connect.
Follow libera.chat guidance on grouping your nicks under a single NickServ account if you plan on signing into IRC from Matrix and an IRC client simultaneously (https://libera.chat/guides/registration#registering). NOTE If you join as more than one sure please append an underscore to your secondary nick which should be the same as your primary nick. This will help everyone understand it's the same person in two different clients. Example: daviwil and daviwil_.
NOTE: libera.chat IRC server does not support COMMAND setname which is what allows you to set your "real name" after connecting. And the Element client does not pass a realname as part of the connection string. So unfortunately your real name will show as your Matrix username.
You could join from an IRC client and through Matrix and authenticate as an IRC user and you can join from Matrix as a Matrix user, just join.