The NERD Summit is going to be virtual again this year. It’s the weekend of March 19-21. There are tons of great sessions for beginners, so if you want to get into programming, you should take a look.
I spoke at the conference in 2017 about how to practice iOS development. As part of the talk, I open-sourced an app that could be used for conferences, which I forked into the conference app for NERD Summit. You can download it here (it’s been updated for 2021).
The source code for the conference app is on GitHub. Feel free to fork it for your conference. It’s easy to adapt — it uses a couple of google sheets as a data-source, so if you update the URLs to sheets in your account (make them publicly readable), you can show your conference events instead.