Ask HN: Getting a viable freelance income stream with time constraint?

I'm looking at moving to Europe from New Zealand in December/January. I'm wanting to develop an income stream from software development that could support me financially. This needs to be doable without physical face time with clients.

I'm also wondering about advice on skills? I have Python experience with wxPython, Linux and some Django exposure. At work I develop retail systems in a 4GL language and work on a web application in PHP that interacts with it. The platform is Linux, I also handle upgrades of this web app to >100 Linux systems.

I will be moving to a country whose language I won't know when I get there, so I will be looking at developing my clients online. I can also work on developing local contacts in my home country before moving.

Has anyone got advice?