I'm a big proponent of education, especially technical education and free education. I'm looking for FOSS software for pre-k through grammar school. I was searching for my son... After I saw locked letters that look liked they needed purchasing on one of their apps... And I haven't found much. Is there any out there anyone can recommend? Or if it's being developed, that I can get behind? Heck, my coding skills are terrible, but I'm sure my oldest and I could cobble something together.