The Everything Open Conference, in 2024, was held in Gladstone Queensland, and I was able to go and make a presentation on ESPHome:

Free your mind and your devices will follow, using ESPHome.

It was a most enjoyable time exploring topics covering Free and Open Source Software (FOSS) topics, including some of the social and inclusivity issues.

The videos of the conference will be made available at some stage.

The Everything Open 2025 Conference will be held in Adelaide, so watch out for the announcements (and subscribe to the Linux Australia mailing list).