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 an 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.