https://opensource.com/article/19/4/early-literacy-tools

Tbh I found FOSS education lacking in UI/UX but there if a growing movement to expand (especially within homeschool community).

Educating your child can be needlessly stressful. I found a general rule that helps is to spark passion for a subject within them, and then show them information is free. They will inevitably learn to read based on their human desire to understand and know more.

Thank you for raising your own child, it's people like you that allow my withering optimism to not die.