I've been doing one-offs as a freelancer for 10-15 years, though it has never been my sole focus/career. I think once you start landing some gigs and build a ne

I've been doing one-offs as a freelancer for 10-15 years, though it has never been my sole focus/career. I think once you start landing some gigs and build a network, similar work will find its way to you. As much as it's a small niche with not very much demand, there isn't much supply or competition. The thing that helps with word of mouth with physical installation work is you can end up with something visually striking to show colleagues or prospective clients.