Congratulations! And thank you for sharing your story over the years. You are an excellent writer and thoughtful founder. I am really glad you found this graceful and economically rewarding exit.
I also own a small bootstrapped company (pure software), and I am now on year 21 (!). Someday, my business will run its course. When it does, I will probably write a blog post about the entire experience of starting and owning it, and if I do I will have been inspired by your posts.
Best wishes.