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BrennacodesOS
BrennacodesOS is a fake web-based operating system built
with Svelte. It was originally modeled after the first Mac OS, but one thing led to another and
I took a few creative liberties along the way. Everything here was built from scratch, including
the icons, wallpapers, and of course the apps, and desktop environment itself. You'll likely get
a better experience and more features by viewing this site on a laptop or other computer with a
full web browser, but you can enjoy it on mobile, too. It's a labor of love and may never be
done, I have plans to add fun and interesting features as I go.
So, go ahead - click around. You might find a few easter eggs... Enjoy!
Notable Features:
- Change some settings.
- Poke around in the terminal.
- Read some blog posts.
- Run a few calculations.
In Progress & On the Wishlist:
- Add a few games! (trying to update Pacman for Svelte, and thinking about adding Solitaire or Minesweeper!)
- Add support for dark mode.
- Fix window resize-ability & color update on state change.
- ...suggestions? Let me know!
About Me
My name is Brenna Stuart. I'm a software engineer in Boulder, Colorado, focused on developer tooling, CLI design, and the intersection of structured markup and LLM execution.
I build tools that make other developers faster. My current projects include bivvy, a declarative CLI tool for automating dev environment setup; APE (Applied Primitive Expression), a markup language spec that treats LLMs as runtime execution engines; and Command Man, a tool for managing command-line aliases. I also built a Claude Code plugin marketplace for sharing agentic workflows across teams.
Professionally, I work in Ruby on Rails. Personally, I'll build in whatever gets the job done - Svelte, shell scripts, Python, or whatever the problem calls for. I care about clean code, good developer ergonomics, and building things that feel like they were designed, not just shipped.
When I'm not writing code, I'm somewhere in the Rocky Mountains with my dog Leeloo (Dallas Multipass), listening to Hidden Brain, or working on whatever the random craft of the moment happens to be.
Where to Find Me
BlogGitHub
Get in touch