Thanks, funny enough the last 2 are on Udemy (my first courses) where as the others are on my main site.
I've kept the Flask one up to date for almost 10 years, all free updates.
I have so many course ideas but starting a new one is tough because I've lost all search traction to my site and courses in general. I don't want it to end but I also have to be real.
I've put a decade into writing blog posts, hundreds of free YouTube videos (without ads or sponsors), 100+ episode podcast related to programming and none of it has grown an audience in 5-10 years. I mean sure I have 21k subs on YouTube but most videos get like 200 views. I do it because I enjoy it but that doesn't mean it's wrong to also want to be able to sustain myself again doing it like I did between 2015 and 2021.
I took your Build A SaaS course on Udemy some year back, it was really good. I didn't realize it has updates to the day. The Udemy version is still the 10 hour one though, so perhaps that's why.