jotafeldmann

#!/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

jotafeldmann

#!/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 +

jotafeldmann

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

jotafeldmann

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

jotafeldmann

# . 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}`);

jotafeldmann

-- 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

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# Docker solution for "removal of container X is already in progress"
# driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r rpool/"
# Based on https://github.com/moby/moby/issues/40132#issuecomment-570000174
docker ps -a | grep Removal | cut -f1 -d' ' | xargs -rt docker rm  2>&1 >/dev/null | grep "dataset does not exist" |  awk '{print $(NF-4)}' | sed "s/'//g" | cut -f1 -d':' |  xargs -L1 sh -c 'for arg do sudo zfs destroy -R "$arg"; sudo zfs destroy -R "$arg"-init ; sudo zfs create "$arg" ; sudo zfs create "$arg"-init ; ...; done' _ ; docker ps -a | grep Removal | cut -f1 -d' ' | xargs -rt docker rm 2>&1 >/dev/null