What becomes apparent very quickly outside the imposed rigidity of a physical office is that different individuals and different roles all have different optimal communication patterns. And people can get really fussy if they aren't getting the structure/tools/freedoms/whatever that they feel they need.

And so the answer to your question is ultimately much more idiosyncratic than you're hoping it to be. Whatever answers you find here, take them as inspiration for things to try out rather than specific things to do.

With that said, effective communication patterns tend to naturally snowball, so if you can start getting people feeling connected and collaborative, you'll find that they'll naturally keep that up and build on it.

But you are going to need to throw some spaghetti at the wall to see what your team needs in order to get that process started.

I learned the following:

- Everything public in Slack. Create a fun-sounding moto that discourages DMs. Even if a DM happens, and the back and forth resulted in a consensus, share that consensus in a public channel (which makes it searchable).

- Record your team meetings, preferably with software that can AI-summarize. Folks on vacation / leave can get the rundown easily.

- Encourage the sharing of solutions to various problems (technical or otherwise) in Slack. If a developer is stuck, and someone helped them in a huddle or a pairing app, share the solution afterwards (again, makes it searchable). Discourage the over-sharing of screenshots (of your application and other things). Again, not searchable. If one must be shared, describe it. For instance, many devs share a picture of a stack-trace. Not super helpful for others. Grab the text and dump it to Slack.

- Have a good pairing software setup, unblocks for when Slack back and forth is too tedious. I like Tuple (tuple.app).

- Connect your issue tracker to Slack, if you use one, makes creating issues easy. Linear does this well.

- If feasible, have your team meet in person, cadence up to you, but at least once. Meeting the people in real life humanizes them more. I know it sounds silly to say, but it's very true in my experience. Your people will seem even lovelier.

Make conversations public by default. If you use Slack, make team channels, project channels, announcement channels etc. all public. Discourage 1:1 and private communication unless really necessary, especially for engineering topics. This single change will have an immense impact on overall company culture.

One thing people miss about remote work is that it's inherently transactional. Show up to a meeting, get or give what's needed, then go back in your hole. This is nice but for many people the lack of genuine social interaction is a killer.

A few jobs ago we set up Donut (donut.com) to set up a couple 15- or 30-minute 1:1s per week and tried to stick to the rule that we weren't supposed to talk about work, just chat about whatever. A replacement for break room chatter, not Yet Another Meeting. It didn't always work very well but when it did, it was great.

Some of the best conversations I had were with an autistic SRE who spent his first month telling everyone how autistic he was in case we needed to know. He did better virtually than he would have in person - lack of eye contact due to camera angles, maybe? So yeah, this has value even for you neuro-atypical, "I don't need chatter, just code" types.

Slack / IM often, don't demand a response instantly though, async & remote go hand in hand.

Put important stuff in email not slack/IM

Have a company wiki

Prefer video calls for alignment

Write to each other often, spend time crafting written narratives, 1-pagers, amazon 6-pagers etc. to share ideas, make people read them, use google docs or ms word online and get comments inline in the document using those tools, follow up on video calls to confirm alignment.

Gitlab has a handbook for this stuff, they are a 100% remote business and very open about their practices: https://handbook.gitlab.com/

consider personal readme's if your team is a bit larger (example): https://gitlab.com/swiskow/swiskow