Texmaker installation failed due to inability to build qt5 web engine

[Chris Jones]

> Apart from the glacial place of OS update migration (*every *app and 
> dependency  is downloaded and built from source),

Just on this point, if you don't want to have to build everything from 
source, then you should not update your OS before MacPorts has deployed 
buildbots for the new OS. You can check this at e.g.

https://build.macports.org/waterfall

and yes we do not yet have macOS13 in place. Ryan might be able to give 
an idea of a timeline for this.

Chris