I've been offering a math text that is open source (LaTeX on GitLab) for many years, since 1995. I have had the good fortune to work at a college that gave me

I've been offering a math text that is open source (LaTeX on GitLab) for many years, since 1995. I have had the good fortune to work at a college that gave me professional activity credit for this. Writing a text, well, is a major piece of work. The text body takes a lot, writing good exercises takes every bit as much, the answers to the exercises are important, and so also are ancillary material such as classroom slides. People respond to rewards and unless they get rewarded for this it is not going to happen nearly enough. If you are an alum, and have some contact with your college or university, please urge them to give people credit for this. Say its important.