Cameron Conn camconn

Why did you do this?

Relax, I only have one Sunday to work on idea, literally my weekend project. So I tried Deepseek to see if it can help. Surprisingly, it works and it saves me another weekend...

What is your setup?

Just chat.deepseek.com (cost = free) with prompts adapted from this gist.

Does it work in one-shot or I have to prompt it multiple times?

This study focuses on the strategies used by the "xz backdoor", an extremely
complex piece of malware that contains its own x64 disassembler inside of it 
to find critical locations in your code and hijacks it by swapping out your 
code with its own as it runs.  Because this a machine-code based attack,
all code written in any program language can be attacked and is vulnerable.

Instead of targeting sshd directly, the xz 
backdoor injects itself in the parent systemd process then hijacks the 
GNU Dynamic Linker (ld), before sshd is even started or libcrypto.so is

Grand-master Level Chess without Search: Modeling Choices and their Implications

Yoav Golderg, February 2024.

Researchers at Google DeepMind released a paper about a learned systems that is able to play blitz-chess at a grandmaster level, without using search. This is interesting and imagination-capturing, because up to now computer-chess systems that play at this level, either based on machine-learning or not, did use a search component.[^1]

Indeed, my first reaction when reading the paper was to tweet wow, crazy and interesting. I still find it crazy and interesting, but upon a closer read, it may not be as crazy and as interesting as I initially thought. Many reactions on twitter, reddit, etc, were super-impressed, going into implications about projected learning abilities of AI systems, the ability of neural networks to learn semantics from observations, etc, which are really over-the-top. The paper does not claim any of them, but they are still perceiv

PostgreSQL is Enough

Background and Cron Jobs

Purpose

Bootstrap knowledge of LLMs ASAP. With a bias/focus to GPT.

Avoid being a link dump. Try to provide only valuable well tuned information.

Prelude

Neural network links before starting with transformers.

How to setup a practically free CDN using Backblaze B2 and Cloudflare

⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,

	#!/bin/sh

	print_usage() {
	echo "usage: compress_video <input_file>"
	echo "supported formats: mp4, webm, mkv, mov, avi, flv"
	}

	get_extension() {
	f="${1##*/}"
	case "$f" in

	# We'll just use the official Rust image rather than build our own from scratch
	FROM docker.io/library/rust:1.54.0-slim-bullseye

	ENV KEYRINGS /usr/local/share/keyrings

	RUN set -eux; \
	mkdir -p $KEYRINGS; \
	apt-get update && apt-get install -y gpg curl; \
	# clang/lld/llvm
	curl --fail https://apt.llvm.org/llvm-snapshot.gpg.key \| gpg --dearmor > $KEYRINGS/llvm.gpg; \

	import tensorflow as tf #We need tensorflow 2.x
	import numpy as np

	#The hashlength in bits
	hashLength = 256

	def buildModel():
	#we can set the seed to simulate the fact that this network is known and doesn't change between runs
	#tf.random.set_seed(42)
	model = tf.keras.Sequential()

	// you need this in your cargo.toml
	// reqwest = { version = "0.11.3", features = ["stream"] }
	// futures-util = "0.3.14"
	// indicatif = "0.15.0"
	use std::cmp::min;
	use std::fs::File;
	use std::io::Write;

	use reqwest::Client;
	use indicatif::{ProgressBar, ProgressStyle};