I'm in USA, and when I read this online (after going through your feed), it seems like a sincere offer and you come across as honest.

I could be your target market -- over 50, but under 100. Not sure if age makes a difference. Some people just don't like messing around with computers and would welcome free help.

If I saw this poster in a cafe, I would ask around and verify if anyone knew you. I would need verify that you're capable, honest and trustworthy. I wouldn't invite a stranger to my home or to work on my computer.

It may be helpful to provide a website link with some references or reviews. You could set up a free business account on yelp or maybe LinkedIn (or whatever Norwegians use for reviews) and ask for professional references. As you help people, you can ask them to provide a review and build your reputation --

Along those lines....

For many months, I've been procrastinating on upgrading my memory and OS ....and swapping out the hard drive (for an SSD)... so I would be open to your free tech help.

✨🙏