Here's a resume advice to your friend. Write a great resume then put it in a drawer and revise/add to it regularly.
Don't rely on resumes. Current hiring "model" (indoctrination really) that most recruiters and hiring managers use were designed to be applied to specific roles but they are used right across the board to any profession, trade, labour, or anyone who will perform any task for pay.
There are bots that read and filter online resumes in ways that was described to me years ago and probably worse now.
Knock on doors, talk to friends or acquaintance, approach anyone, anywhere and any way you can think of and enjoy the rewards. You can be more of the same or yourself.
I worked independently for most of my life but the few years I wrote
resumes and applied for jobs online taught me to ignore all those rules.
I once copied a job post and pasted it as my resume and got an interview. I regret not asking if they ever read the resume. The interview questions were even dumber, Where do you see yourself in 5 years? What would you do with 1000 dollars if we give it to you now? And **** like that. It was a group interview of three of us for a minimum wage job.
Edit: I just remembered another story
In 1991 or 1992 after I started my first company, one man show kind of thing, and had no business sense or understanding that I thought customers are just going to flock my way which didn't happen. So after a few months or a year I applied for a night shift job power washing commercial kitchens and reserved my days to running my business. On my job application (or resume can't remember now) I put my company name as my previous job and made up a name as my former supervisor at the company. I had an in person interview with the company owner and an hour or so later received a call from him and I took the call as the fictitious supervisor I created and gave myself a superb reference and got the job. These were the days.