This week Peer Richelsen, Co-Founder and Co-CEO of Cal.com, joins the show to talk about building the “Stripe for Time” — with a grand mission to connect a billion people by 2031 through calendar scheduling. Cal has grown from an open-source side project to one of the fastest-growing commercial open source companies. We get into all the details — what it means to be an open source Calendly alternative, how they quantify connecting a Billion people by 2031, where there’s room for innovation in the scheduling space, and why being community first is part of their secret sauce.
Peer Richelsen: [52:00] And for us, Cal.com is a real, real– I have a statistic on Cal.com/open. The day we rebranded, the signups went ballistic; literally vertical, like a rocket. So it’s undeniable that the brand is important. But what’s more important to me is, first, consumers don’t give a s***t about open source. They rarely even know the difference. If we really want to connect a billion people, I’d say 90% of them don’t know what open source means, or they have never interacted with open source in a way, like they’ve never opened a GitHub repository, but they care about the best product. At the end of the day, best brand, best product and best price - that’s usually the triangle.
And what we’ve seen with open source - I mean, listen, this company has been around for pretty much eight months now, and we are not only on par with Calendly, but already build things that people ask that were nonexistent in Calendly. So the rate of innovation and the rate of deployment or the security - we have about 13 languages, 13 or 14 languages that are all made by the community and peer-reviewed by the community. It’s a major factor for us to be actually a better product. So it’s not only about selling to enterprises and having these highly regulated industries, but also it helps us to really have a short feedback cycle, talk to customers. And also, scheduling is a very integrations heavy market. So Zoom, Google Calendar, Apple Calendar and Google Meets - that’s just a few to name, and then there’s some analytics products…
And for us being open, just as an example, we have a Web3 video integration, which is called huddle.io-. Huddle01.com, sorry. A bit of a mouthful, huddle01.com. And they provide a peer-to-peer Zoom alternative with NFT avatars, and you can connect your MetaMask… Pretty much same niche focus as our Web3 integration. And they told me they’ve been trying to chase down the head of engineering, or the CTO, or like the VP of engineering at Calendly to build the integration. They literally said, “Just give us docs. We will build it for you and we would love to be part of this ecosystem.” And it took them like months and they still haven’t received a reply. And for us, they saw Cal.com, they saw the opportunity, and they opened the pull request, and three days after was merged. That’s just fantastic for any developer who wants to contribute to a project, or any SaaS business, honestly.
If you have the alternative between an open core where anyone can contribute… For example Tandem, which is another Andreessen Horowitz-funded company which is doing like Zoom, but more for remote teams, and really take over control of your computer, and a ton of really cool things. For them, it was the same experience. They looked at Cal and they said, “Hey, this is quite interesting and quite easy to integrate.” And without our permission, they made a pull request, and we looked at it and it was safe to merge, and now they’re live. And that’s something I mentioned a lot of consumers will appreciate. They will never know what the process is behind the scenes, but one day they wake up and be like, “Why does Cal have 20 apps and Calendly only 10, or something, or 100 apps? Or why is this missing? What can I do to add it?” So I think that’s just something where open source really shines.
If you have the developer, you pretty much own the market for most industries. You could be the PayPal and have good GMV, but I would want to have my stock in Stripe, because I think that’s where the innovation is happening, when you really foster the engineer communities.