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

WietseWind

import fetch from 'node-fetch'
import { XrplDefinitions, derive, sign } from 'xrpl-accountlib'

const now = new Date()

const Server = 'https://xahau-test.net' // can be testnet, xahau-test.net / xahau.network
const secret = '{sender secret}' // can be RK secret
const Account = derive.familySeed(secret)
Account.address = '{sender account r-address}'

WietseWind

// 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" });

WietseWind

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

WietseWind

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

const requiredBits   = 256
const requiredThrows = Math.ceil(requiredBits / Math.log2(10))

// Adapted from validator keypair dice tool by RichardAH
//   https://github.com/RichardAH/validator-keys-from-dice/blob/main/dice.js

// Random (BAD RANDOM! BAD BAD BAD RANDOM! DO NOT EVER USE THIS!! TESTING PURPOSES ONLY!)

WietseWind

wget http://archive.ubuntu.com/ubuntu/pool/universe/s/sblim-cmpi-devel/libcmpicppimpl0_2.0.3-0ubuntu2_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/multiverse/s/sblim-sfcb/sfcb_1.4.9-0ubuntu5_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/universe/s/sblim-sfc-common/libsfcutil0_1.0.1-0ubuntu4_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/multiverse/c/cim-schema/cim-schema_2.48.0-0ubuntu1_all.deb
wget http://archive.ubuntu.com/ubuntu/pool/universe/o/openwsman/openwsman_2.6.5-0ubuntu3_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/universe/s/sblim-sfcc/libcimcclient0_2.2.8-0ubuntu2_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/universe/o/openwsman/libwsman-server1_2.6.5-0ubuntu3_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/universe/o/openwsman/libwsman1_2.6.5-0ubuntu3_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/universe/o/openwsman/libwsman-client4_2.6.5-0ubuntu3_amd64.deb
wget http://archive.ubuntu.com/ubuntu/pool/universe/o/openwsman/libwsman-curl-client-trans

WietseWind

<script src="https://xrpaddress.info/js/xrpl-tagged-address-codec-browser.js"></script>
<script>
  var XCodec = require('xrpl-tagged-address-codec')
  console.log(XCodec.Encode({ account: 'rPEPPER7kfTD9w2To4CQk6UCfuHM9c6GDY', tag: 495 }))
  console.log(XCodec.Decode('XV5sbjUmgPpvXv4ixFWZ5ptAYZ6PD28Sq49uo34VyjnmK5H'))
</script>

WietseWind

#!/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

WietseWind

# 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
} 

WietseWind

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.