Due to a misunderstanding of mine, there wasn’t a free preview lecture with my course on file format identification tools, even though the promotion video said there was. I’ve rectified that, and the introductory lecture is now available for viewing without logging in to Udemy.
My next course, on personal digital preservation, now has all its lectures “in the can.” There’s still work to do on it, but I’m expecting it to be available in a week or so. This course won’t be for library techies, but for anyone who’s interested in keeping files intact and usable over the long term. I’ve learned from making the first course, and the technical quality of this one will be considerably better.