varenc

Recover a deleted file from a running mpv process with an open file descriptor

If a macOS/linux process still has a deleted file open, you can recover it entirely using the open file descriptor — even if the file has been deleted from disk!

This guide shows how to do it using mpv’s IPC interface and embedded Lua scripting. Don't close the mpv process and hopefully it already has a IPC interface set. The general approach is generic, but you need a way to get the running process itself to perform the fd copy. We take advantage of mpv's ability to run arbitary lua code.

---

Find Open File Descriptor

varenc

## Use the path below for macOS. 
# On linux it may be `~/.config/chromium/Default/Preferences` or `~/snap/chromium/common/chromium/Default/Preferences``
# Find yours by opening chrome://version/, finding the "Profile Path" line, and appending `/Preferences` to it.
cat "$HOME/Library/Application Support/Google/Chrome/Default/Preferences" \
| jq -r '
  .devtools.preferences["script-snippets"]
  | fromjson[]
  | [.name, (.content | @base64)]
  | @tsv

varenc

#!/bin/sh
# Swiftbar plugin for displaying Tailscale's --accept-routes and --exit-node status
# 
# Status indicators:
# ✅ = accepting routes
# ❌ = not accepting routes (or accepting, but no peers advertising routes)
# ➡️ = using an exit node
# ❓ = Tailscale not running
#
# Possible outputs:

varenc

function nextdns_fix_domains() {
  function nextdns_existing_rules() { curl -sS 'https://api.nextdns.io/profiles/7dd729/rewrites' \
    -H 'accept: */*' \
    -H 'accept-language: en-US,en;q=0.9' \
    -H "$(chromeCookies.py https://api.nextdns.io)"\
    -H 'dnt: 1' \
    -H 'origin: https://my.nextdns.io' \
    -H 'priority: u=1, i' \
    -H 'referer: https://my.nextdns.io/' \

varenc

# extra comments for you arthur! but FYI you need 'pup' or 'htmlq' you can get with `brew install htmlq`
function sunoScrape() {
    # interate over every url passed in as an argument.  Each url will be in the variable '$u'
    for u in $@; do
        # get the title of the song by extracting the '<meta property="og:title" content="...">' tag from the html of the page
        local TITLE="";
        [[ $+commands[pup] ]] && {
            TITLE="$(curl -sS "$u" | pup 'meta[property="og:title"] attr{content}' | perl -MHTML::Entities -pe 'decode_entities($_)'  )";
        } || {  [[ $+commands[htmlq] ]] && {
            TITLE="$(curl -sS "$u" | htmlq -a content "meta[property=\"og:title\"]" )";

varenc

import random
import pandas as pd
from tabulate import tabulate

SIBLINGS = ["McKenzie", "Reagan", "Danni", "Alex", "Thomas", "Ben", "Shane", "Eric", "Chris"]
PARTNERS = ["Emilie", "Julia", "Courtney", "Kirstyn", "Stefanie", "Rilka"]

sibling_partner_mapping = {
    "Alex": "Emilie",
    "Thomas": "Julia",

varenc

# Workaround for https://github.com/tailscale/tailscale/issues/12244 on macOS

### Usage
# Just put this in a shell RC file (~/.zshrc) and run `tailscaleDNSHack`
# With no params it sets the tailscale DNS to what your `NET_SERVICE`'s DNS is.
# Or pass in an argument to set that as the DNS

function tailscaleDNSHack () {
	local NET_SERVICE="Wi-Fi"
	if [ -z $1 ]

varenc

This script just automates the fix described in gcobb321/icloud3#356 by @gcobb321 for fixing iCloud v3.0.5.2 compatability with Home Assistant 2024.7.x

I took some attempts to be safe but use at your own risk!

To run it just ssh into your HA server, then fetch the file below and evaluate it with bash.

$ wget "https://gist.githubusercontent.com/varenc/243eeed5622f0e749367b2f9e9d73a38/raw/icloud3_quick_fix.sh"
$ bash icloud3_quick_fix.sh

varenc

function partifulToken() {
  
  # some overly terse JS that extracts the Firebase access token from indexedDB and assigns it to `window.__FB_KEY`
  local SOME_JS="indexedDB.open('firebaseLocalStorageDb').onsuccess=event=>(((event.target.result.transaction('firebaseLocalStorage','readonly').objectStore('firebaseLocalStorage').getAll().onsuccess=e=>console.log('FIREBASE_TOKEN:',window.__FB_KEY=e.target.result[0].value.stsTokenManager.accessToken)),null))";

  echo "Getting partiful firebase token..." >&2

  # This requires that automation access is enabled on Chrome
  # It first finds an active partiful.com tab and runs the JS there.
  # NOTE: Right now this only checks that tabs in the FIRST window. Should be improved to check all windows/tabs.

varenc

Disable AC Wake lingering in macOS using undocumented pmset features

Every time your Mac wakes from sleep powerd creates an InternalPreventSleep assertion labeled com.apple.powermanagement.acwakelinger with a 45 second timeout. That assertion ensures that even if your Mac needs to wake for 2 seconds to recieve a push notification that it stays on for 45 seconds. Seemingly there's no way to control this. And recent versions of macOS love to wake quite frequently.

Forunately we can disable this. The built in pmset tool has many undocumented features but thankfully it's open source

Cruicially there's an undocumented pmset disabledassertion feature that just makes macOS ignore certain power assertions. To effectively disable acwakelinger we just run this:

$ sudo pmset disableassertion InternalPreventSleep