alicebob

Setup full disk encryption on a Hetzner cloud CX42 machine. No fancy SSH unlock: you have to go to their web based terminal to enter the disk password on boot.

Notes:

• Their web based terminal is /weird/. You can paste things, but it looks like it's set up for a german keyboard, and many characters change ("http://" into "http;//"), sometimes it converts everything to lowercase after a while, sometimes it enters some capslocks mode. I ended up typing as much as possible by hand, and only use alphanumeric passphrases so there are no surprises when copy-pasting those.
• The (qemu) virtual machine doesn't use EFI, but Legacy Boot. Most setup instructions I found are for EFI systems.

there we go

• In the Hetzner UI click the server in the list, go to tab [ISO Images], search for "nix", and mount "NixOS 25.05 (x86_64/minimal)"
• Reboot, and open the terminal. (the's a button on the top with [>_], which is a shortcut for the terminal)

veekaybee

Anti-hype LLM reading list

Goals: Add links that are reasonable and good explanations of how stuff works. No hype and no vendor content if possible. Practical first-hand accounts of models in prod eagerly sought.

Foundational Concepts

Pre-Transformer Models

ottomata

# Pyflink Streaming Table Env + Event Utilities Event Platform integration.

# Download wikimedia-event-utilities Flink:
# Download Wikimedia Event Utilities Flink jar, e.g.
# https://archiva.wikimedia.org/#artifact-details-download-content/org.wikimedia/eventutilities-flink/1.2.0
#   wget http://archiva.wikimedia.org/repository/releases/org/wikimedia/eventutilities-flink/1.2.0/eventutilities-flink-1.2.0-jar-with-dependencies.jar
# Also download other dependencies we need:
#   wget https://repo1.maven.org/maven2/org/apache/flink/flink-connector-kafka/1.15.2/flink-connector-kafka-1.15.2.jar
#   wget https://repo1.maven.org/maven2/org/apache/kafka/kafka-clients/3.2.3/kafka-clients-3.2.3.jar
# If you like, use ipython for your REPL, its nicer!

ttesmer

{-# LANGUAGE TypeSynonymInstances #-}
data Dual d = D Float d deriving Show
type Float' = Float

diff :: (Dual Float' -> Dual Float') -> Float -> Float'
diff f x = y'
  where D y y' = f (D x 1)

class VectorSpace v where
  zero  :: v

ottomata

# See also:_https://pythonspeed.com/articles/conda-docker-image-size/

# The conda env build stage image:
# 1. Create conda env
# 2. Optionally install conda dependencies
# 3. Optionally install pip dependencies
FROM continuumio/miniconda3 AS conda_build_env

# Create a bare conda env.
# We need at minimum python, pip, conda-pack and gcc and g++ (to build any binary pip packages later)

mandrean

# Instructions for fresh install

$ sh <(curl -L https://nixos.org/nix/install) --darwin-use-unencrypted-nix-store-volume --daemon
# reboot
$ source /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
$ echo 'export NIX_PATH=darwin-config=$HOME/.nixpkgs/darwin-configuration.nix:$HOME/.nix-defexpr/channels${NIX_PATH:+:}$NIX_PATH' | tee -a ~/.zshrc
$ echo 'source $HOME/.nix-profile/etc/profile.d/hm-session-vars.sh' | tee -a ~/.zshrc
$ nix-channel --add https://nixos.org/channels/nixpkgs-unstable
$ nix-channel --add https://github.com/LnL7/nix-darwin/archive/master.tar.gz darwin
$ nix-channel --add https://github.com/nix-community/home-manager/archive/master.tar.gz home-manager

wolfeidau

Install i2c tools to check for PCA9685 board.

sudo apt-get install i2c-tools
sudo i2cdetect -y 1

Install vim and git.

lucianposton

set from="user@protonmail.com"
set my_user="user@protonmail.com"
set my_pass="pass"

set ssl_starttls=yes

set smtp_url="smtp://$my_user:$my_pass@127.0.0.1"

# workaround for https://github.com/neomutt/neomutt/issues/1211
set imap_authenticators=login

rragundez

simonw

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb