How much longer do I need to pump???

This one’s for the combo pump & bf girlies. I am 9 long (short??!) months into breastfeeding. How I got here I do not know. But we did it!! I pump during the work day and bf on evenings and weekends. My boob-crazed babe loves it, and I don’t foresee him wanting to wean any time soon. BUT I am counting down the days until I can be done pumping at work. I am wondering when I might actually be able to stop. When he turns 1, I assume he can start getting cows milk at school instead. But my supply is already barely hanging on. If I stop pumping at work will I even have enough to keep him fed on weekends?
Where can I find more info on breastfeeding after 1? I am so excited to be closer to the end of my bf journey. It’s been great, but I’m ready to dry up the taps. But want to still provide the emotional support my baby wants. Please give me all the weaning stories and places to learn more!!