My colleague Jon Steven and I have just had our article Duoethnography of Two EFL Teachers Developing Their Own Classroom Teaching Materials published in The Language Scholar (online first and it will be in the Autumn 2020 issue).
We talk about the motivations behind us developing our own materials and some of the challenges of materials development. We cover working conditions briefly, commercial issues of coursebooks versus classroom issues of teaching, originality, marketability, guarding against precarity, values and skills we aim to develop in learners.
It is open access, so anyone can read it. I certainly look forward to any comments or questions (and would be happy to pass any on to Jon as well).