Founding a company, or just working on any project with a very small team (Less than 5 people) has all of the same issues the author wrote about here. At least they did for me. I resonated a lot with this.
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Separately, I hope the author of this project is able recognize how this project might be able to grow sustainably. Its a hard thing to know that you won't be able to work on something forever, and either building a community who wants to maintain a core project or having some company pay to maintain it could be a good idea. Linus isn't going to be around forever, but I expect that linux will outlive him by a good margin.