The track grid is already defined and we opened the Call4Papers for the TDC 2019 Belo Horizonte. Submit your lectures and indicate to your friends and also to your co-workers!
We separated some tips that Yara Senger left on the blog Globalcoders, in case you have not yet seen:
The most important step to be approved as a speaker is to submit at least one lecture. So, regardless of anything, participate, take a risk, disseminate.
If you are already a lecturer or would like to speak then we have a novelty, we are using an open source project developed by the Devoxx team! Kleber Xavier and Ana Abrantes worked on the customizations, but you are a developer and you know how it is? Isn’t it? We may have surprises and we count on your cooperation and patience, if you have any problems report sending an email to cfp@thedevelopersconference.com.br.
And if you want to contribute improvements and adjustments, we've made our version of this project available on Github.