Wietse Wind WietseWind

Task: convert a Proxmox VM's disks to virtio-blk, cache=none, iothread — identified by guest IP

You are operating on production VMs. Work on ONE IP at a time, finish it completely (or abort it cleanly) before starting the next. Never run two hosts in parallel. Stop the whole run on the first abort and report.

Inputs and access

Local backup folder: ./backup/ in the current working directory (create if missing).
Tools you may use on Proxmox: pvesh get|set|create, cat /etc/pve/.... Forbidden: qm stop, pvesh ... status/stop, qm disk unlink, --force, qm destroy, anything that deletes or moves a volume, anything on a VM you did not match to the IP.

Target disk options

Flashing Espruino on Seeed XIAO ESP32-C3 (macOS)

1. Detect connected USB devices

system_profiler SPUSBDataType

The XIAO ESP32-C3 shows up as a CP2102N USB to UART Bridge Controller (Silicon Labs) when using an older unit, or as a native USB-Serial/JTAG device on newer units.

	import accountlib from 'xrpl-accountlib'
	import assert from 'assert'

	// Modified for 6 sided dice, from the 10 sided version:
	// https://gist.github.com/WietseWind/78c90534b866bb59d5d78cacf48400f9
	// based on @RichardAH's work: https://github.com/RichardAH/validator-keys-from-dice/blob/main/dice.js

	const requiredBits = 256
	const dieFaces = 6

	# Auto resume claude

	# -- Claude Code: auto-resume sessions --
	autoload -Uz add-zsh-hook

	_claude_session_check() {
	if [[ -f .claude_session ]]; then
	echo "💡 Saved Claude Code session found. Run 'claude' to resume."
	fi
	}

	var on = false;
	const blinkInterval = setInterval(function() {
	on = !on;
	LED1.write(on);
	}, 500);

	var WIFI_NAME = "Test";
	var WIFI_OPTIONS = { password : "xxxx" };

	var wifi = require("Wifi");

	// SPS30 over UART on The Pill - averaged emit + bidirectional commands via Script.Eval.
	// Measurements emit "sps30"; command results emit "sps30_cmd". uint16 format.

	let INTERVAL_MS = 1000; // sample at ~1 Hz
	let WINDOW = 10; // samples per averaged emit

	let uart = UART.get(0);
	if (!uart) { print("ERROR: UART not available"); }
	else uart.configure({ baud: 115200, format: "8N1" });

	#!/bin/bash
	# ZFS Performance Tuning - Non-persistent (apply after each reboot)
	# Auto-detects pools, datasets, and disks

	set -e

	echo "=== ZFS Performance Tuning ==="

	# --- ARC: set to ~200GB (adjust if your servers have less RAM) ---
	ARC_MAX=214748364800

	import lib from "xrpl-accountlib";
	import { XrplClient } from 'xrpl-client'

	const vanityAccount = "rrrrrrrr";
	const signWithRegularKeySecret = "ssssss"; // or use secret numbers and change the derive fn below

	const tx = {
	TransactionType: "Payment",
	Account: vanityAccount,
	Fee: "12",

	[validator_list_sites]
	https://vl.ripple.com
	https://unl.xrplf.org

	[validator_list_keys]
	# Ripple
	ED2677ABFFD1B33AC6FBC3062B71F1E8397C1505E1C42C64D11AD1B28FF73F4734
	# XRPLF
	ED42AEC58B701EEBB77356FFFEC26F83C1F0407263530F068C7C73D392C7E06FD1

	# NOTE!! DO THIS ONE BY ONE, IT FAILS IF TWO NODES TRY TO JOIN AT THE SAME TIME!

	# export LANG=en_US.UTF-8
	# export LC_ALL=en_US.UTF-8

	#pvecm expected 1

	# Clear join (back to standalone)

	systemctl stop pve-cluster corosync