Sebastian Ratz has made an impact on the project by constantly contributing over a long time.
He have addressed the following bugs:
https://github.com/eclipse-tycho/tycho/pulls?q=is%3Apr+author%3Asratz+is...
Hey have also have always given good bug reports and reproducer as well as feedback on new features.
It is my pleasure to nominate Sebastian Ratz as a committer on Eclipse Tycho.