To fully migrate to SCL (even with ruby) you should append another line here:
```
sed -ri '1,$s|/usr/bin/ruby|/usr/bin/ruby193-ruby|' upgrade-scripts/* bin/* lib/util/*
```
Or more precisely you should put that as first line (before replacemane of rake, otherwise /usr/bin/ruby will match /usr/bin/ruby193-rake

Otherwise it seems good.