Micah's Secret Blog

That Time Ken Thompson Wrote a Backdoor into the C Compiler

10 minute read Published: 2025-10-23

When Ken Thompson won the Turing Award jointly with Dennis Ritchie for their work in UNIX, he was expected like other Turing winners to write a paper that would be published in the ACM Computer Journal. What he ended up submitting was a paper about "the cutest program [he] ever wrote"-- a sneaky undetectable self-reproducing "Trojan horse" backdoor in the C compiler that would allow him to log into affected machines as any user.

Setting Up a Better tmux Configuration

13 minute read Published: 2025-08-26

tmux is a beast of a tool that I found to be indispensable for my personal developer workflow, but there are a few things that I have added to my tmux configuration to enhance the out-of-the-box experience.

Git Gud: Setting Up a Better Git Config

14 minute read Published: 2025-07-23

There's tons of little goodies you can add to your .gitconfig to make your life easier. From hidden gems in the git Man pages to aliases and shell functions, here's a few things I've found useful to reduce friction in my Git workflow.

Let's Build a (Mini)Shell in Rust

17 minute read Published: 2025-05-31

In a little over 100 lines of Rust code, we can build a simple shell program that can execute commands, supports piping, handles signals, and maintains command history. This tutorial will guide you through the process of creating a minimal shell, which we will call "minishell", using Rust's powerful standard library and some external crates.

I Switched to a Split Keyboard: Here's Why

13 minute read Published: 2025-01-21

I've ditched my traditional keyboard for a split keyboard. Here's why I made the switch and how I'm finding it so far.


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