My son and I did a roadtrip on the weekend that took us through the SA Riverland, back to Wentworth in SW NSW, across to Robinvale, Vic, and back to Adelaide, and I was personally surprised to find that every single service station, roadhouse and cafe had Indian people (of Indian heritage) serving and working there, in all three states. The only place that didn't was the Crown Hotel in Wentworth where we had dinner Saturday night. Other than that, 6 stops, and every one had Indian people working there. Some of those jobs are not easy, such as a single guy that was serving customers at Boundary Bend general store, and cooking food to order, by himself, and all done with a smile. My son (who is 17) was asking why these people were all of Indian heritage and I said my best guess was that they were prepared to do those jobs, and that's why they got the jobs and kept them. I also know from my time at the Obela hommus factory that they always seem to have relatives that can quickly fill vacant roles as soon as other people quit (move on). In my 6 years there we went from 2 people of Indian heritage to almost half of the aprox. 60 people who work there. They were prepared to do the work, and it certainly wasn't always easy work.
On my last trip to WA we visited Guadagnino Orchards near Manjimup and bought a bunch of fresh produce from their farm-gate store - see here: https://www.facebook.com/AGuadagninoCo/ and we met the owner - Ray Guadagnino, who rocked up on a forklift having been stacking pallets in the cold store next door (there was no-one else serving so we had to wait for him) and we got talking - he told us about having to pull up whole orchard of trees or bulldoze them at one point because he couldn't find people to pick the apples - he was featured in this story about WA labour shortages in September 2020: https://www.abc.net.au/news/rural/2020-09-09/orchard-labour-shortages-pulls-tree-in-heartbreaking-decision/12644302. He told us that he now only employs migrant workers because he knows they are reliable and will turn up and work every day. He also provides housing for many of them on his farm.
Another story here about a farm that wouldn't be able to operate without workers from Tonga and Vanuatu: https://www.palmscheme.gov.au/stories/case-study-newton-orchards
Orchard work is physically hard work, and not everybody is prepared to do it clearly.
But getting back to LaserBond, it's machinery operation, and clearly if it requires 6 to 12 months of training to become proficient at it (as @Wini suggested), then it's skilled work for sure. So, still looks like a potential scaling issue to me, and the length of training required and the fact that it's always going to be new for every new worker (no prior exposure because LaserBond's gear is unique) means there are unlikely to be too many shortcuts, so it's just going to take labour supply and a lot of time. It doesn't mean they can't scale, but it likely means they can't scale quickly. So, for me, still a concern. Great tech, but hard to scale, IMO.