The book Open Astronomy: A Guide to Using Free and Open Source Tools for Observing and Imaging has been cancelled. Trying to track Open Source technology in a book format proved to be too difficult. I am devoting my efforts to building open source software such as mlCloudDetect and Obsy rather than trying to track a such a fast moving object!
Check out my Substack at openastronomy.substack.com for more writing from me!