Trained steering vectors may work as activation oracles
Preliminary finding from testing on Qwen 3 8B
lunnova.dev
Latest posts
NASA Audio Highlight Reels transcripts
Making historic space moments readily accessible
Type : Type is good enough to get started!
Girard's paradox hurts less than trying to avoid Girard's paradox
RL me until I can contest program at the speed of thought
Interviewing is a mess…
Walking the stack incorrectly in a WINE program from eBPF
Where we're going we don't need bpf_get_stack (it doesn't understand windows)
Git tree hashes make better cache keys
Commit hashes change on reword or reordering, tree hashes are more efficient
Using ROCm with NixOS or Nixpkgs
2026 guide to using ROCm on NixOS
ROCm 7.1.1: you can (not) build
Issues encountered while building and maintaining ROCm packages
SPACE IS FUCKING AWESOME
What's your favorite thing about space? Mine is space.
AI generated posts about AI failures
reddit is unusable
202602 Snippets
Site update, linkpost for February 2026. Student loan discharge, chickenpox vaccines, realistic birth lottery.
AMD Instinct MI100 and MI210 don't support power saving
Shocking lack of power management on modern cards
If by degrowth…
I'm going to hold both sides of the degrowth debate simultaneously and incorrectly because I've McFuckin' lost it
Generating personalized OpenGraph embed images with typst
Let's spruce up those social embeds!
Dynamic starfield-ish background with CSS and SVG
Snippets for a simple starfield backdrop that changes on each page
202510 Snippets
Linkpost for October 2025. Learning JJ, some fun posts and a nix cache presence check snippet.
atproto as a static site's comment section
Publish on your own site, discuss on bluesky
FSF makes claim that Anubis WAF is malware
Area foundation runs into crawler problem, negs least bad general solution.
pattern-wishcast: enum pattern types in 2025 rust
Discussing the pattern types proposal, imitating some of it with uninhabited variants.
202506 Snippets
Linkpost for June 2025. X11 has absolute scaling if you're brave! We can weed with lasers! nuke the seabed to fix the climate‽
Crawler operators, please stop destroying the commons
Goodwill for crawling/scraping has rapidly been depleted
202503 Snippets and Links
New post format, calibre + supernote folder structure, altgr-intl, new box runbook
How to find GPU VRAM size programmatically on Linux
Demonstrates three ways to find GPU VRAM size on Linux
AST2500 GPU driver is very slow due to MMIO framebuffer copies
Notes on AST2500 DRM GPU driver performance issues
Linux GPU Runtime Power Management Spurious Resumes
It's not easy keeping your secondary GPUs suspended on a modern Linux system
AMD Instinct MI100 Revisions
Multiple revisions of AMD Instinct MI100 GPUs sold in 2020 and 2021.
Debugging amd_pstate
Guide to get AMD P-state support working on Linux systems, with troubleshooting tips and a NixOS config sample
AMDGPU 5.15/6.x Power Limit Issues and a Bodge
AMDGPU's strict power limit enforcement in recent kernels causes issues for some GPUs. Patch it out, what could go wrong?
Patreon should allow opt-in billing alignment
Patreon is removing all ways to align billing on one day, complicating budgeting, increasing transaction fees and frustrating creators
WoW's bag upgrade indicator addon API was removed
World of Warcraft's UpdateItemUpgradeIcon API was removed in patch 10.0.2
Android's screenshot blocking is user hostile; a portent of things to come?
*Personal opinion. Not speaking for any org, project, friend, employer or associates.* This post might not be of much value. It's mostly me being grumpy, feel free to skip over it. Android allows ap
flat_map and indexed flat map
Sometimes a list is a map. Sometimes a list with a list of partitions is a map.
Zen 3's Amazing Slow Short Rep Mov
Zen 3 signals Fast Short Rep Mov support. It's slow for unaligned data. AMD Pls Fix.
ASUS ROG Chakram X Scroll Wheel Fix
Disassemble, remove the scroll wheel, add a drop of lubricant, use an air blaster on it, reassemble
Resetting a PCIe Wireless Adapter
(Maybe) Reset a PCIe wireless adapter on Linux without a reboot
WIP: NixOS Router Setup
WIP: Setting up a NixOS router on a HP T740 thin client from scratch
Lazy Security Keys
Security keys can protect you from losing your own access, rather than making you more secure
Sensible Git Repo Initialization
Quick tutorial which sets up a git repo that avoids future line endings pain
Google removed my Yubikeys from a google account 'Just to be safe'
The world's worst security flow
StarWind VSAN offered me $600 to review their products
Dishonest practices from a major VSAN vendor
A model for mapped dependencies in Gradle which you can't use fully (yet)
A model for mapped dependencies in Gradle which you can't use fully (yet)
UPNP on a NixOS router
UPNP on a NixOS router
Quieting ROG Strix Helios top mounted case fans
3D printing gaskets to reduce noise when mounting case fans
Lun's Pony Diffusion Models
Stable Diffusion finetuned on derpibooru
amdgpu gpu_recovery is impressive but required too often
amdgpu keeps hanging when using ROCM
Stable Diffusion Training Notes
I fine-tuned stable diffusion at home over a few days, and you can too.
Stable diffusion optimization: EMA weights on CPU
Save a few gigabytes of VRAM while training stable diffusion, with bonus memory leak fix!
Disabling ECC on Radeon Pro GPUs on Linux
Get 7% more VRAM for your machine learning misadventures! Frontier model developers need not take heed.
Migrating primary drive on NixOS
Low risk migration between primary drives on NixOS
Bypassing triplebyte Direct Booking requirements
Triplebyte vulnerability allowed anyone to see the direct link to bypass screening