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/**
Flips app.slack.com between light and dark without touching the menus yourself. It reads the current mode from the page, opens your avatar menu → Preferences → Appearance, selects the opposite color mode, waits until the page actually changes, then closes the dialog and returns Slack theme switched to dark (or light).

Paste it in the DevTools console on app.slack.com, or run it from anything that injects a script into the tab. It only drives the DOM and needs nothing from Slack’s own JavaScript. It depends on Slack’s data-qa attributes and menu labels in English, so a Slack redesign or another interface language is what breaks it. Each step says which element it could not find.
*/

(async () => {
  const sleep = ms => new Promise(r => setTimeout(r, ms));
  const waitFor = async (fn, t = 8000) => {
    const s = Date.now();

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#!/usr/bin/env bash
# ai-status.sh
# Quick diagnostic for the four major AI providers plus the shared layers underneath.
# Separates an edge failure (CDN/DNS) from an inference failure (provider status page).
#
# Usage:
#   ./ai-status.sh                    # run once, everything
#   ./ai-status.sh edge               # run once, edge only
#   ./ai-status.sh --watch            # loop every 300s (default)
#   ./ai-status.sh --watch 60         # loop every 60s

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#!/usr/bin/env bash

# fix-bluetooth-quality.sh
#
# Purpose
# -------
# Recover the high-quality Bluetooth A2DP audio profile when Ubuntu reconnects
# a headset/earbuds using only the low-quality HSP/HFP "Handsfree" profile.
#
# This is intended for Ubuntu 24.04 systems using BlueZ + PipeWire +

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BST: Binary Search Tree - Cheat Sheet

When to think “tree”

Use a tree when the problem has:

• hierarchy
• parent/child relationships
• root, leaf, depth, height
• nested data

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Enable WSL2 Mirrored Networking on Windows 11

This guide configures WSL2 to use mirrored networking mode, so Linux inside WSL can access Windows-hosted services through localhost.

Example use case: curl from WSL2 Ubuntu to reach Ollama running on Windows:

curl http://localhost:11434/api/tags

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# . save-path.sh
# . save-path.sh save

SAVE_PATH_FILE=$1
OPTION=$2

if [ "$OPTION" = "save"  ]; then
	echo $PWD > $SAVE_PATH_FILE
elif [ "$OPTION" = "create"  ]; then
	touch $SAVE_PATH_FILE

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# Source: https://code.mendhak.com/simple-bash-prompt-for-developers-ps1-git/
function parse_git_dirty {
  [[ $(git status --porcelain 2> /dev/null) ]] && echo "*"
}
function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/ (\1$(parse_git_dirty))/"
}

export PS1="\n\t \[\033[32m\]\w\[\033[33m\]\$(parse_git_branch)\[\033[00m\] $ "

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// map for list-like things
// mmap(document.querySelectorAll('a'),console.log)
function mmap (listLike, lambda){ for(let i of listLike){lambda(i)} }

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// Edit on https://gist.github.com/jotafeldmann/c3129225ba5d0c26b5fb32273752e8fc
// Test on https://replit.com/@jotafeldmann/typescript-method-decorator#index.ts
// "experimentalDecorators": true

function log(target: any, propertyName: string, descriptor: PropertyDescriptor) {
    const originalMethod = descriptor.value;

    descriptor.value = function (...args: any[]) {
        const result = originalMethod.apply(this, args);
        console.log(`${propertyName}(${args}) = ${result}`);

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-- Generate query to sort cols (PostgreSQL)
-- https://gist.github.com/jotafeldmann/5eeca544c8e86afe546c794636d27ebf
 
 drop function if exists get_sorted_cols_from_table;
 CREATE OR REPLACE FUNCTION get_sorted_cols_from_table(_tbl regclass, OUT result text)
     LANGUAGE plpgsql AS
 $func$
 BEGIN
    EXECUTE format('
      select