Ask HN: Would quitting my job, to work on a passion project, be a bad idea?

I've been at the same company for about six and half years. It's a tiny start up at which software is not our main priority, despite our main offering being a web application that we write ourselves. It's closer to a scam company, because the software itself is merely a sales tool to help bring on new customers. It wasn't always like this. The company was bought, by new owners, three years ago. The new owners re-purposed the company and staff into what it is now.

I'm burned out here and feel as though moving right into a new job would be a bad idea, because I have a feeling that I would carry over some of my depressed attitude, towards coding, into a new job. I do plan to leave, though.

I've had this side project that I've been working on, and day dreaming about, for several months. I'll poke it once a week or so just to keep it moving along. It's currently just a project relating to a hobby of mine and has no plan to make money or anything. It'd be more like cultivating a community around this hobby.

Lately I've been seriously contemplating just putting in my resignation at my current company, and giving this project of mine a solid few months of dedicated work. That time spent would both give me a chance to try to build this thing out, as well as give me some time to decompress from my current job before going into something new. I'm single with enough savings to do this.

Does this seem like a sound plan?