billchurch

#!/usr/bin/env bash
#
# chunked_curl.sh
#
# Download a file using multiple parallel HTTP range requests, then
# reassemble the file in the correct order, showing overall progress.
#
# Bill Church - November 2025

set -euo pipefail

billchurch

/**
 * Simple SSH client using agent-based auth with ssh2.
 *
 * Env:
 *   SSH_HOST: hostname or IP, required
 *   SSH_PORT: port number, defaults to 22
 *   SSH_USER: username, defaults to OS user
 *   SSH_AUTH_SOCK: path to agent socket, required for agent auth
 *   COMMAND: command to run, defaults to "uptime"
 *

billchurch

blueprint:
  name: Humidity-Controlled Fan with Manual Override
  description: >
    Automate a bathroom fan to turn on/off based on humidity levels with manual override and configurable timer. Includes automatic helper creation and a dashboard card.
  domain: automation
  input:
    fan_switch:
      name: Fan Switch
      description: The fan switch entity.
      selector:

billchurch

blueprint:
  name: Pico Fan – Simple 5-Button
  description: >
    Map a Lutron Fan Pico (PJ2-3BRL-GXX-F01) to one ceiling fan
    and an optional light.
    Single presses only – no long-press or double-click logic.
  domain: automation
  author: billchurch
  source_url: https://community.home-assistant.io/t/pico-fan-simple-5-button-remote-for-lutron-caseta-haiku-or-any-fan/901507
  input:

billchurch

Switching from zsh to bash on macOS Sequoia (or newer)

This is what I did in macOS to switch the shell shell from zsh to bash, restoring Homebrew paths, and enabling Colima command-line completion.

1. Change the Default Shell to Bash

First, check your current shell:

billchurch

substitutions:
  device_name: living-fan
  device_description: Living Room Ceiling Fan
  friendly_name: Living Room Fan

esphome:
  name: ${device_name}
  comment: ${device_description}
  platform: ESP8266
  board: esp01_1m

billchurch

substitutions:
  device_name: garage-light
  friendly_name: Garage Light
  default_delay: '900' # default delay of 15 minutes (900 seconds)
  pre_off_warning: '30' # pre-off warning period in seconds
  location: Garage
  ha_timer_number: input_number.garage_light_timer
  switch_name: Garage Interior Light Switch
  motion_sensor_name: binary_sensor.motion_garage_motion_2

billchurch

import socket
import requests
import paramiko
import time
import xml.etree.ElementTree as ET

def discover_sonos_devices():
    MCAST_GRP = '239.255.255.250'
    MCAST_PORT = 1900
    msg = (

billchurch

rtl_433 proxmox lxc and docker

These are my notes setting up rtl_433 docker container on a Proxmox host inside an LXC guest...all the inceptions...

proxmox host setup

background on rtl_433 on lxc:

• https://discussions.flightaware.com/t/howto-rtl-sdr-dongle-pass-through-to-proxmox-lxc-container/89093
• https://sdr-enthusiasts.gitbook.io/ads-b/setting-up-rtl-sdrs/blacklist-kernel-modules

Docker LXC install script

billchurch

Hacking the Rectangular Starlink Dishy Cable

These are are some notes I put together on butchering the rectangular dishy cable.

FOLLOW THESE GUIDELINES AT YOUR OWN RISK. I TAKE NO RESPONSIBILITY FOR ANY DAMAGE OR INJURY YOU SUSTAIN FROM FOLLOWING OR NOT FOLLOWING THESE GUIDELINES.