Alejandro González AlexTMjugador

Interactive Debugging on Github Actions

Did you ever run into some issue where a job would behave slightly different in you CI environment than on your local machine? Did you ever wish you could run just a few commands in a shell on your build machine?

These are, of course rhetorical questions. And if you're using Github Actions to run your CI jobs, you'll have noticed that this use case is not supported at all. Can't create a nice walled garden if anyone could just run a CI job, after all. There are some workarounds (e.g. https://github.com/nektos/act), but since they're not officially supported they can be a bit unstable. Also, even they usually don't reproduce the exact environment found on github's servers.

This is a simple Tailwind plugin to expose all of Tailwind's colors, including any custom ones, as custom css properties on the :root element.

There are a couple of main reasons this is helpful:

You can reference all of Tailwind's colors—including any custom ones you define—from handwritten CSS code.
You can define all of your colors within the Tailwind configuration, and access the final values programmatically, which isn't possible if you did it the other way around: referencing custom CSS variables (defined in CSS code) from your Tailwind config.

See the Tailwind Plugins for more info on plugins.

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

	#!/bin/bash
	# java shim to execute anything java within a distroless, rootless container
	# designed for podman 4, breaks with podman 3 because of different --pull syntax
	# https://iptables.sh

	set -euo pipefail

	IMAGE="gcr.io/distroless/java21:nonroot"

	# check for podman

	#!/bin/sh -e

	# Shell script to convert videos to APNG images suitable for use as Discord
	# stickers. Tools used:
	# - ffmpeg
	# - pngquant
	# - apngasm

	while getopts r:f:p:m:h option; do
	case $option in

	import json
	import shutil

	DOTMINECRAFT = '/home/robin/.minecraft'
	VERSION = '1.17'
	INPUT_FILE = 'lang.json'
	OUTPUT_DIR = 'out/'

	language_codes = []