it does not take $1M to maintain a linter, these tools can and have been built and maintained by people in their spare time. astral built a better one, for which I am genuinely grateful to them, but it's not like they invented linting or that the open source community was just waiting around for some business to supply their tooling. indeed developer tools are notoriously hard to make money off simply because so many good ones have been developed as either solo or community open source projects, largely by people in their free time.