After several years of hard work a prior open source project that grew to immense popularity got me employment a few times. It wasn’t the actual project, code, or capabilities that meant anything. The only thing appealing about that project was it’s popularity.
Nobody ever looked at the code, except people interested in submitting pull requests. If you think a prospective employer will take the time to analyze the code you are either applying for an exceptional specialized position or completely mistaken.
Work on open source because you like to solve tough problems, want to grow as a developer, or because you just want to build some interesting product. Don’t kid yourself into thinking the code will immediately solve some business interest.