low level
From Nand to Tetris - My Way
Building a computer. Starting from nand gates, all the way until a computer that can run tetris.
I'm Dan Henry
Hobby computer scientist writing about technology, life, and everything in between.
Recent Posts
compiler design
Bytecode and the VM - The Guts of My Interpreter
Still working on the clox language from crafting interpreters. Actually executing code now, which is pretty cool
language design
Building an interpreter from scratch
Creating a programming language has always carried this uber-leet status to me, and now I finally get to explore it.
homelab
Why I don’t use Proxmox (and why CloudStack fits my lab)
Most people reach for Proxmox. I didn’t. This is about how I experiment, not about what’s “best.”
C
Procedural Cave Generation with C and SDL2
I am insanely obsessed with PCG, and I'm trying to get more comfortable with graphics programming. This is where we start.
homelab
Refactoring My Home Network
Completely redesigning my network and reconfiguring my core switch.
homelab
Your Homelab Isn't Teaching You Shit If You're Not Treating It Like Production
Is your homelab actually gonna help you get a job?
low level
Writing a Custom Memory Allocator
We all agree that malloc() is kinda trash, right?
homelab
Diving into Ceph: Building a Distributed Storage Cluster that Doesn't Suck
Notes from trying to stand up Ceph in a 3-node lab and why future-me expects pain.
low level
IDT and Interrupts: Making the CPU Actually Do Something Useful
Trying to figure out what IDT is, how to implement it, and how to use it to make the CPU actually do something useful.
low level
Why am I trying to write an OS again?
I love distributed systems until they love me back. Notes from trying to stand up Ceph in a 3-node lab and why future-me expects pain.