Whenever I see someone on HN talking about their moonlighting or side/hobby project, I get chills and think to myself "Boy, I hope they don't work for $BIGCO, because in all likelihood their existing employer claims IP ownership over that work, and if they ever try to do anything substantial with it, they're going to have corporate lawyers on their case."
I've had experience with a similar "committee" (probably same company) and I concluded the safest path is to just not do side projects while employed with BigTech.