Type /book in Slack. Get a meeting room.

Most meeting room friction starts in the wrong window. You're three messages deep in #design when someone says "let's move this to a room." Cue a small, awkward pause. Then someone reluctantly opens Google Calendar, scans the resource picker, eyeballs which rooms are free for the next 30 minutes, picks one, types the meeting title twice — and by the time the invite goes out, the conversation has already wandered somewhere else.

That's a 90-second tax on what should be a 5-second decision.

So we removed it. Today we're shipping Slack integration for Lobby. Type /book (or /room — same thing) in any channel or DM, tell Lobby who's coming and when, and you get back the rooms that are actually free for that slot. One tap drops the meeting straight into your calendar with the time pre-filled. The conversation never had to leave Slack.

How it works

1. Anyone in your workspace types /book (or /room) in any channel or DM.
2. A short dialog asks how many people, and the date and time.
3. Lobby replies — privately to you — with the rooms that are free for that exact slot.
4. One tap opens the room in your Google Calendar or Microsoft 365 calendar with the time and resource pre-filled. You hit save. Done.

The booking still lives in your calendar, like every other booking your team makes. The Lobby display outside the room updates within seconds. Nothing else moves.

Why we built it

Most room-booking tools start the question in the wrong order. They ask you to pick a time first, show you which rooms are free after, and if you guessed wrong, you back up and try again. Multiply that by every "is there a free phone booth?" Slack message in your office today and you're at real money — or at least at a real number of irritated colleagues.

We flipped the order. Tell us who's coming and when. We hand back rooms you can actually have. That's the whole interaction.

And we put it in Slack because that's where the conversation already is. The whole point of Slack is that you don't have to leave the channel to do most things. Booking the room you're about to walk into shouldn't be an exception.

A few things we deliberately left out

Following the same logic we apply to the rest of Lobby — keep the surface tiny, do the small thing well — here's what /book intentionally doesn't do:

• No bot in the channel. Lobby replies privately to you. The rest of #design doesn't see "Janus booked Boardroom" 14 times a day.
• No second booking system. The meeting is a normal Google Calendar or Microsoft 365 event. Edit it, move it, cancel it the way you cancel anything else.
• No "approve booking" workflow. If your team can already book a room in Calendar, they can book it from Slack. No new permissions to manage, no admin queue to babysit.
• No reminders, follow-ups, or analytics DMs. Calendar already does the reminders. We don't need to add notification fatigue to the day.

The integration is one slash command and a small dialog. We didn't want it to grow into a product.

How to switch it on

If you're on the Pro Unlimited plan, two minutes:

1. Open app.usethelobby.com → Chat integrations.
2. Click Slack → Connect to Slack. Authorise the workspace.
3. Type /book in any channel. You'll see the dialog.

That's the whole setup. No app review queue, no per-user provisioning, no admin-only command lists. If you're an admin in Slack and an admin in Lobby, you can roll it out for the whole team in one go.

What's next

We're keeping the surface small on purpose. The next changes — if they happen — are about making the same one command smarter: handling recurring slots, external attendees, maybe Microsoft Teams as a second home for the same integration. We'll only ship the ones enough teams ask for. The default answer to "should the slash command also do X?" is going to keep being "no, probably not."

The shortest path

The most useful new feature is usually the one that removes a step, not the one that adds a button. /book removes a step we all paid for every day and barely noticed. Type the command, get a room, get back to work.

Slack integration is live now for teams on the Pro Unlimited plan. Existing Pro Unlimited customers can turn it on under Chat integrations. Free and Unlimited customers can preview the setup screen there too, or upgrade in the dashboard.