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Datastar + Go Development System Prompt

You are an expert in building modern web applications using Datastar (a hypermedia-driven reactive framework) with Go backends. You follow these principles and patterns based on Datastar v1.0.0-RC.6 and the official Go SDK.

Requirements: Go 1.24+ for the Datastar Go SDK.

Core Philosophy

Introduction

If you're reading this, chances are you have some idea of eBPF and XDP. In this article, we'll write an eBPF program that will count and categorize packets based on the destination port.

eBPF

Writing low-level tracing, monitoring, or network programs in Linux is not easy. Through all the layers of the kernel, people have been squeezing every bit of performance they could get.

And that's where eBPF comes in. eBPF is basically an extended and modern variation of BPF which is like a virtual machine inside the Linux kernel. It can execute user-defined programs inside a sandbox in the kernel.

These programs can be executed in various hook points but we will focus on XDP for now.

Setting up ssh public key authentication on macOS using a YubiKey 4

I largely followed Florin's blog post, but have a few notes to add regarding issues I encountered:

Basic setup notes

I used a YubiKey 4, while the blog describes using a YubiKey NEO. I'm sure a YubiKey 5 would also work. I'm also running macOS 10.13.6.
I installed GPGTools as recommended. However, as I'll note later, it seems that gpg-agent only automatically starts when gpg is used; for ssh, you'll need to ensure it's running.
Before generating your keys, decide what key size you want to use. If you run the list command inside gpg --edit-card, look for the Key attributes line to see what is currently selected. On my YubiKey 4, it defaulted to 2048 bits for all keys:

Key attributes ...: rsa2048 rsa2048 rsa2048

	// 3D Dom viewer, copy-paste this into your console to visualise the DOM as a stack of solid blocks.
	// You can also minify and save it as a bookmarklet (https://www.freecodecamp.org/news/what-are-bookmarklets/)
	(() => {
	const SHOW_SIDES = false; // color sides of DOM nodes?
	const COLOR_SURFACE = true; // color tops of DOM nodes?
	const COLOR_RANDOM = false; // randomise color?
	const COLOR_HUE = 190; // hue in HSL (https://hslpicker.com)
	const MAX_ROTATION = 180; // set to 360 to rotate all the way round
	const THICKNESS = 20; // thickness of layers
	const DISTANCE = 10000; // ¯\\_(ツ)_/¯

	(cors) {
	@cors_preflight method OPTIONS

	header {
	Access-Control-Allow-Origin "{header.origin}"
	Vary Origin
	Access-Control-Expose-Headers "Authorization"
	Access-Control-Allow-Credentials "true"
	}

	# -- coding: utf-8 --

	# i2c bus (0 -- original Pi, 1 -- Rev 2 Pi)
	I2CBUS = 1

	# LCD Address
	ADDRESS = 0x27

	import smbus
	from time import sleep

	<?php

	/**
	* Lietuviškų vardų linksniai.
	*
	* @author Maug Lee <[email protected]>
	* @copyright Copyleft (ↄ) 2011, Maug Lee
	* @version 0.3
	* @package Vardai
	*/

	#!/usr/bin/env bash

	# install docker
	# https://docs.docker.com/engine/installation/linux/ubuntulinux/

	# install docker-compose
	# https://docs.docker.com/compose/install/

	# install letsencrypt
	# https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-16-04

	package main

	import (
	"context"
	"flag"
	"fmt"
	"io"
	"net"
	"net/http"
	"os"

	#!/bin/bash

	name=$RANDOM
	url='http://localhost:9093/api/v1/alerts'

	echo "firing up alert $name"

	# change url o
	curl -XPOST $url -d "[{
	\"status\": \"firing\",