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Hello Blue Sky, I'm Kevin. I am a software engineer who likes to play with different network protocols in order to learn more about how the internet works.

kmcd.devVisualizing the Internet (2025)An all-new interactive map of the Internet, showing the evolution of undersea cables and internet exchanges with year-by-year animation and detailed statistics.

Kevin McDonald

@kmcd.dev

I've made an interactive map of the physical infrastructure of the global internet with undersea cables and peering data: kmcd.dev/posts/intern... I've made a series of posts trashing and praising the protocol I love to use to build cool things, gRPC: kmcd.dev/posts/grpc-t...

kmcd.devVisualizing the Internet (2025)An all-new interactive map of the Internet, showing the evolution of undersea cables and internet exchanges with year-by-year animation and detailed statistics.

18/12/25, 12:09 pm0 reposts0 likes

Kevin McDonald

@kmcd.dev

18 Dec 2025

I actually like gRPC so much that I did a whole series detailing how you can build your own gRPC server and client from scratch: kmcd.dev/posts/grpc-f... I've gotten thousands to whistle into their phones and computers to pretend to hack an old-school phone control system: kmcd.dev/posts/can-yo...

kmcd.devgRPC From Scratch: Part 1 - ClientgRPC is an incredibly popular RPC framework that efficiently connects services. But how does it work? Let's dive in!

Kevin McDonald

@kmcd.dev

18 Dec 2025

I made a "typing" game, but with Morse code: kmcd.dev/posts/morse/ ...and a lot more. Hopefully this gives you a glimpse into what I do on my free time! My latest post is about using code to generate artwork for my tech blog: kmcd.dev/posts/cover-...

kmcd.devMorse CodeExplore the history of Morse code, from its dits and dahs to the first transatlantic cable. Discover how this elegant system was the original binary and test your own skills with an interactive speed ...

Kevin McDonald

@kmcd.dev

18 Dec 2025

If you like any of this stuff, toss me a follow or subscribe to the RSS feed. This was a really great year for me, but I intend to increase the frequency that I write posts going into the new year. I already have 3 more posts completed and scheduled to automatically publish, so stay tuned!