Can the change from single quote to double quotes be left out? A style change should probably be in a separate MR

Otherwise, changes LGTM

@fladrif hey thanks for the review. Unfortunately I currently don't have any spare time to continue working on this and also haven't used bgio in quite some time. Feel free to use this PR as a baseline.

Regarding the issues you mentioned:

1. The singe/double quotes issue likely stems from me having prettier configured and because there's no prettier config saving a file will automatically lead to prettiers default behavior. So the easiest way to fix this would probably either be to throw away these changes or to add a prettier config and let it run against the project. For me personally having a prettier config in a js/ts project is (especially open source) is a must, as it ensures consistency across contributions (though it might need CI or at least commit hooks)
2. .nvmrc I also think that having some form of proper node versioning would probably be helpful to clearly communicate which node version the project has been run and tested against. There's also a node-version file irrc. Alternatively you could specify the engines property inside the package.json this should also help.

@on3iro Gotcha, I'll do that. Thanks for getting the ball rolling on this.