When you're talking to an open source dev, just remember that they are literally giving you their time for free, and they are people who don't like to be treated poorly.
Edit: Just to be clear, I don’t mean any ill will toward the guy. He’s frustrated and he’s just taking it out in the wrong venue at the wrong people, but that doesn’t mean he’s a bad person.
Edit 2: The reinstalling he’s talking about is NPM. So just running npm install. It’s because he tried removing the node_modules directory, which is a reasonable thing to do, but it means you need to reinstall the modules with that command.
The entitlement of the open source community can be astonishingly deaf. You tell users that open source is better, users try it and your response is, oh it's free software, you get what you pay for.
Pay who? If I donate do I get paid support? Almost any other paid product/service based off that project almost certainly won't be open source and probably subscription spyware. So your answer to use open source is don't use open source???
If this is your attitude on your repo then don't imply/demonstrate it as for production ready use. It a personal fun dev project not fit for mainstream use. Pick a side, you can't have both.
I actually offer consulting services for this library in particular, so yes, if you pay, you get paid support.