 My name is Christoph and I do the 2-factor authentication of Nextcloud and I want to give you an overview of what features we currently support and what we are working on and what's coming in the future. So what is 2-factor authentication? When you authenticate on a system, you basically have three possibilities to prove your identity. The first one is that you show the system something that you know, which you use to password, which we have on almost all systems. The second one is something that you have, like some device, some special hardware. And the third one is something that you are, like your IRS, your fingerprint, something that's inherited from yourself. And with 2-factor authentication, you use two of these types of authentication vectors together. So in Nextcloud, we do have U2F which stands for universal 2-factor authentication. It's an open standard where you have a USB key that you plug into your computer when you want to login. You push a button and it's done. So it's secure, it's very simple to use. The only downside is that you have to purchase one of these keys from Ubico or other companies. The second one we use apart is time-based, one-time passwords, a short TUTP. It's also an open standard where there's a secret shared between the Nextcloud and your smartphone app. And when you login, it generates a number based on the current timestamp, which can be verified. So it's also secure and very easy to use because you don't need any hardware. You just install an app and set it up and you're good. And these two are the most prominent that we currently support. We're here to piece the most used one according to the download numbers. And there's a new provider that we're working on, which is called the Gateway Provider. Basically it allows you to send authentication codes via SMS, signal or telegram. The nice thing about it is that you don't need any hardware. You can just use your smartphone where you already have messaging apps installed. But be aware that it's still a technology preview, so there are some judgecomings and stuff we still have to work on. So don't use it in production. Yes. So what else are we working on? We try to give admins more control over that two-factor authentication because currently the user's controlled whether they use it or not. We are also making it more robust to failure in the case that the app can't be loaded, for example. And also we've added a command for next slot 14 where admins can actually check if users use two-factor authentication. And we have a lot of stuff coming up for 15, I think, and the next versions where we make it even more configurable for admins. More on that when it's ready.