Good luck with the interview.
I did a talk at my local camera club back in the autumn all about ‘Open Source Software’. I was trying to enlighten our members that there is another world of post processing out there that doesn’t involve Lightroom / Photoshop.
One issue that people were nervous about is support / help for the free software. I told them that the support is as good as any commercial product, as each Open source product will have a homepage with links to forums / wiki’s / you tube tutorials etc. I think you need to emphasise that fact. If you get stuck / have a problem there is always somebody in the virtual world to offer you a hand. I’ve certainly benefited from on line help.
Another thing I’ve noticed is that mainstream photography magazines / websites seem reluctant to give free software a plug. Maybe magazines won’t do it because it may jeopardise their relationship with advertisers and effect revenue streams, In the UK, if you open a photography magazine it will have tutorial / editing techniques / tips all geared towards photoshop, it’s as if photoshop is the only thing out there. Doesn’t seem fair really or am I just being an idealist in a world that isn’t fair. Was that a rant ?
Anyway good luck, I am sure you will do a sterling job promoting free software. I might link a couple of my images when I am at home this evening
Regards
Phil