Oma and opa Yesterday, my grand parents threw a party to celebrate their 55th wedding anniversary. Opa (85) was an electrical engineer and a great researcher. Oma (78) used to work in her parents' bakery and raised their two children. They are still happily married after all these years. It really shows. — Dries Buytaert Dries Buytaert is a Boston-based Open Source advocate and technology executive. More than 10,000 people are subscribed to his blog. Sign up to have new posts emailed to you or subscribe using RSS.