About a thousand people contribute code to LLVM each year. There are probablymany thousands who work on the LLVM code base in downstream projects. And evenmore people use the LLVM libraries to build other cool projects on top of.The many LLVM users and contributors have long been communicating with eachother using mailing lists, bugzilla, and more recently,Discourse and githubissues. Next to theseasynchronous communication channels, the LLVM community has also long had moresynchronous communication channels, such asIRC andDiscord. Twice per year, there is the opportunityto communicate synchronously face-to-face with other LLVM-ers from around theworld: at the LLVM developer meetings. The LLVMsocials that happen in various places aroundthe world also provide the opportunity to meet face-to-face with LLVMers inyour area.In recent years, we’ve added a number of online “face-to-face” synchronouscommunication channels. They often are the best way to make progress quickly.I think many don’t know of their existence yet, or just need a littleencouragement to make more use of them. Therefore, I thought it was worthwhileto highlight them in this post:Online sync-upsare regular calls on specific topics. A few of them have been running foryears, but most started only in the last 2 years. A full list of currentonline sync-ups is documented athttps://llvm.org/docs/GettingInvolved.html#online-sync-upsMore recently, “officehours” havestarted. In these, specific experienced people in the community makethemselves available for a chat and to answer questions on anything in theirarea of expertise. They are documented athttps://llvm.org/docs/GettingInvolved.html#office-hours. Whether you’reexperienced or not in LLVM, both online sync-ups and office hours can be agreat way to get advice and help on any issues you might be facing when usingor contributing to LLVM.One last way to find LLVM events that may be interesting to you, is to look atour LLVM communitycalendar.It shows the schedule for most office hours, online sync-ups and socials. Ifyou’re an organizer of any of these events, please do not forget to add yourevent to the community calendar by invitingcalendar@llvm.org.