Saleh Alanazi Sal7one

Debugging macOS Screen Sharing When Bonjour Works but IPv4 Fails

I had a weird macOS homelab issue where Screen Sharing stopped working. At first it looked like the remote Mac was broken, but the real problem was much lower in the network stack: stale or broken IPv4 ARP/neighbor state.

This write-up explains the debugging path and the lesson.

TLDR: clearing ARP fixed the issue. OR USE direct IPV6 Instead of IPV4 192.xx

Complete Guide: Export Your Notion Workspace to Markdown Files

Overview: The Two-Step Processs

We'll use two specialized scripts:

Backup Script (bulk-exporter.js): Downloads your Notion content as structured JSON
Converter Script (json-to-markdown.js): Transforms JSON into beautifully formatted Markdown

Step 1: Setup Your Project

⚠️ WARNING: This process can affect your Heroic game installs. In rare cases, if paths/manifests are broken, you may need to repair or reinstall a game. Proceed carefully and back up anything important first.

1. Identify your external drive

Run:

	package com.sal7one.webgputest

	import android.os.Bundle
	import android.view.SurfaceHolder
	import android.view.SurfaceView
	import androidx.activity.ComponentActivity
	import androidx.activity.compose.setContent
	import androidx.activity.enableEdgeToEdge
	import androidx.compose.foundation.background
	import androidx.compose.foundation.layout.Arrangement

	import com.android.build.api.artifact.SingleArtifact

	androidComponents {
	onVariants { variant ->
	val cap = variant.name.replaceFirstChar { if (it.isLowerCase()) it.titlecase() else it.toString() }
	val manifestProvider = variant.artifacts.get(SingleArtifact.MERGED_MANIFEST)

	val taskName = "enforceNoUnexpectedPermissions$cap"
	tasks.register(taskName) {
	inputs.file(manifestProvider)

	#!/bin/bash

	# ==== User Configuration ====
	GITHUB_USERNAME="your_github_username"
	GITHUB_TOKEN="your_github_token"

	PER_PAGE=100
	GITHUB_API_URL="https://api.github.com"
	DEST_DIR="./github_repos"

	package com.sal7one.testingrobo

	import android.app.Application
	import android.content.pm.ActivityInfo
	import androidx.activity.ComponentActivity
	import androidx.compose.ui.test.junit4.createComposeRule
	import androidx.compose.ui.test.onNodeWithTag
	import androidx.compose.ui.test.onNodeWithText
	import androidx.compose.ui.test.performClick
	import androidx.test.core.app.ApplicationProvider

	package com.example.salscomposecomponents

	inline fun <R : Any> R.applyWhen(
	condition: Boolean,
	block: R.() -> R,
	): R = applyChoice(condition = condition, trueBlock = block, falseBlock = { this })

	inline fun <R : Any> R.applyChoice(
	condition: Boolean,
	trueBlock: R.() -> R,

	package com.sal7one.handler

	import android.os.Bundle
	import android.os.Handler
	import android.os.Looper
	import android.os.Message
	import android.util.Log
	import androidx.activity.ComponentActivity
	import androidx.activity.compose.setContent
	import androidx.activity.enableEdgeToEdge