It's Open Source, the best possible remedy against many disgraces, bus factor included.

It sure helps that the code is open source. However, there are some factors that still make it harder for other people to pick up a project

- a lot of knowledge can be lost how the system works and has to be reverse engineered - which fork is the chosen one by the community and how will people know about it - branding might be unclear, can you reuse the name or should you rename your project

Maybe being featured on HN attracts more developers now?

You seem to consider this important, maybe you could volunteer?

Can you explain what you mean exactly?