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Open-source software has integrated itself into our daily lives, impacting 78% of US companies in 2015 [11]. Past studies of open-source community dynamics have found motivations behind contributions [3, 14, 18, 19] and the significance of community engagement [8, 17], but there are still many aspects not well understood. There's a direct correlation between the success of an open-source project and the social interactions within its community [7, 9, 17]. Most projects depend on a small group. A study by Avelino et al. [4] on the 133 most popular GitHub projects found that 86% will fail if one or two of its core contributors leave. To sustain open-source, we need to better understand how contributors interact, what information is shared, and what concerns practitioners have. We study common topics, how these have changed over time (2011 - 2021), and what social issues have appeared within open-source communities. Our research is guided by the following questions: (1) How is open-source changing/evolving? (2) What changes do practitioners believe are necessary for open-source to be sustainable? 

Talks at practitioner-focused open-source software conferences are a valuable source of information for software engineering researchers. They provide a pulse of the community and are valuable source material for grey literature analysis. We curated a dataset of 24,669 talks from 87 open-source conferences between 2010 and 2021. We stored all relevant metadata from these conferences and provide scripts to collect the transcripts. We believe this data is useful for answering many kinds of questions, such as: What are the important/highly discussed topics within practitioner communities? How do practitioners interact? And how do they present themselves to the public? We demonstrate the usefulness of this data by reporting our findings from two small studies: a topic model analysis providing an overview of open-source community dynamics since 2011 and a qualitative analysis of a smaller community-oriented sample within our dataset to gain a better understanding of why contributors leave open-source software.