Moo 3.1 works for me on PHP 7.1 but not PHP 7.2. Moo still uses Cake 2+. I think Moo should upgrade and use latest Cake 3+ on PHP 7.2. This would be a very fast/secure combo.
You guys could have a testing team/person like car manufacturers have racing teams. Probably get a lot of innovation that way. Coding is evolving every day now.