[rasz]

>In my head i’m thinking: “If their leetcode-engineers are that good why do they have rely on my open-source?”

>What would you do in this situation?

I would ask out loud “If your leetcode-engineers are that good why do you have rely on my open-source?”. Mind you I did that once when company I was contracting for wanted to hire me full time. They went with someone else with brilliant CV and ace whiteboard skills. They got in touch almost a year later asking for a rescue mission when nothing worked anymore, made more money contracting again than if I would work there full time.

How about you ask them for consulting gig instead?

[busyuser]

Why would they accept my consulting gig though if they can hire someone to do it themselves?

[x0x0]

It's hard to hire. If it were easy, they wouldn't be reaching out to you with bullshit job interview offers disguised as job offers.

You have (presumably) a pile of expertise in this particular area that they will have to painfully recreate. Including the experience of having built this thing once, and all the lessons from doing so.

As the project maintainer, you get a privileged stream of insights into how other companies are using the library / tool.