That's exactly what I wanted to know about: All of these changes are developed by muhomorr but committed by thestinger. So even if other people are writing code, it seems like thestinger has the final say over commits.
That's why I wanted to know if the project is still dependent on a single person for committing changes and if there are any precautions taken in case something happens with that person. For instance multiple people having commit rights and access to the signing keys.