having been in your position a year ago, I can definitely sympathise :(
the one thing I can say (again, from experience with having worked for google while engaging with the open source world as part of my job) is that the relationships you have been building up might well survive the loss of your job, especially if your next job ends up being in the same general area. also, i can highly recommend starting a group chat with your ex-team, that was really good for all of us in the time following the layoff.