idkrn123’s gists

idkrn123 / show-ble.go

Created November 25, 2023 02:34

golang program to watch for and display nearby BLE devices, their manufacturers, and signal strength. may become a repo in the future if logic gets complex enough

	package main

	import (
	"context"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
	"sync"

idkrn123 / sftp-setup.sh

Created November 25, 2023 00:58

stupid internal script i use on certain machines to provision them more quickly to my liking (securely-configured sftp for `~/Pictures/Screenshots` dir only)

	#!/bin/bash

	# ask for input with default
	ask() {
	local prompt default reply

	prompt="$1"
	default="$2"
	while true; do
	read -p "$prompt [$default]: " reply

idkrn123 / authorized_keys

Created November 23, 2023 04:51

my keys, can be safely ignored if i didn't send you here

	# start dh's ssh keys
	ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINatV5yB5vEjkU8a6JqSOLJ04vdUomb4PnJrnu850Tuo fishbowl
	ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIExu3eeZ8tlKEIcutN7jrLq6X4RA1VhS0BEj/M//mwrf fishbowl-arch
	ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIP6n0Y4nr/QuwNwVo0AgvrN+GoxT/gVMowLTDcrSCZYe fishbowl-win11
	ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINf9Laq2JuMX0FK0fAUtMzYYJTSAaghFGNBHPunvHWDD p16
	ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII5rkgu+h7SnZAfCz2yNNniIYMMvrfY5MaFjsI3/08tl x13
	ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOvbKj89NiRMNbFb1RYWQpItnIQcj48uC5V7ZNJGQk3j pi5
	ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIErCxDrGzOcnOyFqLdsrQRasgWCi1abcQPDNtlaqx87a pi4
	ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHqHrVJtpRggGJz2cfjRtYvco/ZESbHrhvbxINtF8n0Q mobile
	# end dh's ssh keys

idkrn123 / pi_arduino_tempmon.py

Created November 20, 2023 22:56

edit of `pi_temp_mon.py` which uses a single serial channel to communicate with an arduino running the `serial_colors.ino` sketch i previously published

	import click
	import serial
	import time
	import subprocess
	import re

	@click.command()
	@click.option('--brightness', default=50, prompt='Enter brightness', type=int)
	@click.option('--temp_floor', default=40.0, prompt='Enter temperature floor', type=float)
	@click.option('--temp_ceiling', default=80.0, prompt='Enter temperature ceiling', type=float)

idkrn123 / serial_colors.ino

Created November 20, 2023 22:20

serial_colors.ino - experimental arduino sketch to read 3 rgb bytes input and write to 3 pins for an rgb led

	const int redPin = 9;
	const int greenPin = 10;
	const int bluePin = 11;

	bool firstInputReceived = false;

	void setup() {
	Serial.begin(9600);
	pinMode(redPin, OUTPUT);
	pinMode(greenPin, OUTPUT);

idkrn123 / pi_temp_mon.py

Last active November 19, 2023 04:12

a silly little raspberry pi rgb led temperature monitor script. not optimized at all, will rewrite in c as soon as i care enough.

	import click, RPi.GPIO as GPIO, time, subprocess, re

	@click.command()
	@click.option('--brightness', default=50, prompt='Enter brightness', type=int)
	@click.option('--r_pin', default=32, prompt='Enter R pin', type=int)
	@click.option('--g_pin', default=33, prompt='Enter G pin', type=int)
	@click.option('--b_pin', default=12, prompt='Enter B pin', type=int)
	@click.option('--temp_floor', default=40.0, prompt='Enter temperature floor', type=float)
	@click.option('--temp_ceiling', default=80.0, prompt='Enter temperature ceiling', type=float)
	def main(brightness, r_pin, g_pin, b_pin, temp_floor, temp_ceiling):

idkrn123 / luks.sh

Created November 19, 2023 01:28

This script provides a user-friendly interface for locking and unlocking LUKS-encrypted volumes. It supports custom mount points, prompts for user input when necessary, and includes robust error handling for a smooth experience. Default actions are provided for ease of use, with the flexibility to specify devices and mount paths as arguments.

	#!/bin/bash

	# Usage:
	# Unlock a LUKS volume with a specified device and default mount path:
	# ./luks.sh unlock /dev/sdx1

	# Unlock a LUKS volume with a specified device and custom mount path:
	# ./luks.sh unlock /dev/sdx1 /mnt/custom_mount

	# Lock a LUKS volume with the default mount path:

idkrn123 / build_linux.sh

Last active November 16, 2023 15:05

gpt-4 turbo's attempt at a distro-agnostic build script. tested only on debian and alpine. takes tarball path as argument

	#!/bin/bash

	# Exit on errors and unset variables
	set -euo pipefail

	# Function to detect package manager and install packages
	install_packages() {
	local debian_packages=(build-essential libncurses-dev bison flex libssl-dev libelf-dev dwarves)
	local redhat_packages=(make gcc ncurses-devel bison flex openssl-devel elfutils-libelf-devel pahole)
	local suse_packages=(make gcc ncurses-devel bison flex libopenssl-devel libelf-devel dwarves)

idkrn123 / get_latest_linux_kernel.py

Last active November 16, 2023 14:54

a cronnable little script to get the latest stable version from kernel.org, compare against current version, and run a build script

	import os
	import re
	import click
	import requests
	from bs4 import BeautifulSoup

	# Constants
	KERNEL_ORG_URL = "https://www.kernel.org/"
	VERSION_FILE = "latest_kernel_version.txt"
	DOWNLOAD_DIR = "./downloads"

idkrn123 / libvirt_pci.tf

Created October 8, 2023 21:36

terraform libvirt pci passthrough provisioning + simple python utility

	variable "instance_name" {}
	variable "image_path" {}
	variable "libvirt_uri" {}
	variable "pci_devices" {
	type = list(string)
	default = []
	}

	provider "libvirt" {
	uri = var.libvirt_uri

dh idkrn123