[krapp]

>Well you will also need composer for actual deployment.

No you don't, it's PHP, there is no "actual deployment" beyond putting the files on a server.

Worst case scenario (because I've had to do this) is you have to change the paths in the file generated by the autoloader, if your development environment is different than production. But that's no more work than adding paths to include statements. You can even just do that locally first and move everything with FTP.