SERDAR DOĞRUYOL
Crystal Core Team Member
Creator of Kemal, iyi, and gcry
I'm a software engineer and Crystal Core Team member in Istanbul. I created Kemal, the iyi programming language, and gcry.
5M+ downloads across open source projects
About me →Why I Built iyi: 10 Years of Crystal, and the One Rule I Couldn't Add
I have been writing Crystal for over ten years. I built Kemal in it, I maintain libraries in it, and I still think it is one of the nicest languages to read and write. So the sentence I am about to write is not the...
Read post →Writing
- Aug 27, 2026 HAHWUL joins the Kemal Core Team as Security Lead
- Jun 11, 2026 cryload 5.0.0: The CI-First HTTP Load Tester That Actually Fails Your Builds
- Apr 20, 2026 Why Crystal, 10 Years Later: Performance and Joy
- Apr 06, 2026 Rethinking HTTP Benchmarking: Why I Built cryload with Crystal
- Feb 03, 2025 The Zero-Cost Trap: Why AI Code is a Liability