The Public Library of Science (PLoS) maintains an Open Source Toolkit which publishes articles, commentary and resources around open-source software development. The Toolkit is set up as a channel, and content is regularly updated - bookmark the site or sign up for email updates to be alerted to new content.
Project Jupyter (https://jupyter.org/) is the home to a number of initiatives around open source software, standards, and services.
Bioinformatics Open Source Conference (BOSC): a special interest group (SIG) of the International Society of Computational Biology (ISCB). Annual satellite meetings generally precede the ISCB's ISMB meeting: https://www.iscb.org/about-ismb#about.