ZHS copyrighthero

PyCon US 2024 Talk Notes - Unlocking the Parallel Universe: Sub Interpreters and Free-Threading in Python 3.13

Prerequisites

PyCon 2023 – Eric Snow talk on sub interpreters
EuroPython 2022 – Sam Gross talk on free-threading
PyCon 2024 - “Sync vs Async in Python” happening right now
PyCon 2024 - Building a JIT compiler for Cpython
PyCon 2024 – Overcoming GIL with sub interpreters and immutability
“Parallelism and Concurrency” chapter from CPython Internals

How to get the Latest NVIDIA drivers on FreeBSD

Step-by-step instructions on installing the latest NVIDIA drivers on FreeBSD 13.0 and above.

1.0 Clean Up Existing Drivers

IMPORTANT: Log out of X session. Make sure you Desktop Manager (sddm|slim) is off. You need to be on the console.

# Create a boot env incase we need to rollback
sudo bectl create `date +%Y%m%d`-BeforeNvidia-Upgrade

Problem

If you're getting this kind of error when running Node.js programs with binary dependencies that don't support M1 yet, e.g.:

$ yarn test
dyld[51175]: missing symbol called
dyld[51176]: missing symbol called

Webpack 5 Node Polyfills Upgrade Cheatsheet

Webpack 4 automatically polyfilled many Node APIs in the browser. This was not a great system, because it could lead to surprisingly giant libraries getting pulled into your app by accident, and it gave you no control over the exact versions of the polyfills you were using.

So Webpack 5 removed this functionality. That means you need to make changes if you were relying on those polyfills. This is a quick reference for how to replace the most common patterns.

List of polyfill packages that were used in webpack 4

For each automatically-polyfilled node package name on the left, this shows the name of the NPM package that was used to polyfill it on the right. Under webpack 5 you can manually install these packages and use them via resolve.fallback.

Node.js on Apple Silicon

Node Version Manager (https://github.com/nvm-sh/nvm) works perfectly across native node installations as well as emulated Rosetta installations. The trick I am using here is to install one LTS version of node under Rosetta and another stable version as native binary.

TODO

find a way how to run the same node version on both platforms

So, you want to be able to work from anywhere. You want to be on a mountain somewhere, two bars of 3G signal, and you forward that to your laptop with a WiFi hotspot. Open your laptop and your shell on remote is already open and as responsive as possible. Work/life balance? With power like this, who cares?

Problem Scenario

Often, in academic institutions at least, you have the following situation:

NB: This document describles a 'Old-School' way of using Yubikey with SSH

Modern OpenSSH has native support for FIDO Authentication. Its much simpler and should also be more stable with less moving parts. OpenSSH also now has support for signing arbitary files witch can be used as replacement of gnupg. Git also supports signing commits/tags with ssh keys.

Pros of FIDO

Simpler stack / less moving parts
Works directly with ssh, ssh-add and ssh-keygen on most computers
Simpler
Private key can never leave the FIDO device

Cons of FIDO

Setting up postfix on MacOS High Sierra

MacOS Sierra High comes with preinstalled postfix. Follow these steps to configure it on a local system:

1. Create a `sasl_passwd` file

sudo nano /etc/postfix/sasl_passwd

Add this to the file

	ARGS = build clean pack start test

	MAKECMDGOALS ?= clean

	$(ARGS):
	npm run $(MAKECMDGOALS)

	.PHONY: $(ARGS)

	080mail.com
	0u.ro
	0v.ro
	0w.ro
	1000mail.com
	100m.hl.cninfo.net
	109.62.115.106
	10m.in
	10mail.com
	10minutemail.us