Current docs
Approach Memo (product perspective): https://docs.google.com/document/d/1vgZ52XDtvLyoLrt2Lb8OjoM-ctoiVFJnYSJYbRvvGF0/edit#heading=h.gozwjk96affo
MVP Technical Spec: https://docs.google.com/document/d/1WHFyAMCrKhenjuBXfQl_KxuwvmuN3UEqhdqtV2_QFyI/edit#
Old docs