Richard Osterloh rosterloh

From Zero to OpenClaw on Proxmox LXC (Debian 13): A Real-World Build Log

I wanted a self-hosted OpenClaw deployment on Proxmox, reachable on my LAN, with:

Gemini API key support
Gemini CLI OAuth (Google AI Pro)
Telegram bot integration
Brave Search API integration
Browser tool support in an LXC
OpenRouter free model option (without Gemini CLI install)

Step-by-step guide to configure Proxmox Web GUI/API with Let’s Encrypt certificate and automatic validation using the ACME protocol in DNS alias mode with DNS TXT validation redirection to Duck DNS.

Objective

We want to use a certificate in Proxmox GUI/API issued for free by a Certificate Authority trusted by default in browsers and operating systems. The chosen Certificate Authority will be Let's Encrypt [1]. Since the issued certificates are valid for only 90 days, automating the certificate renewal process is crucial. For this purpose, the Automatic Certificate Management Environment (ACME, RFC8555) protocol will be used [2].

	### WARNING: READ CAREFULLY BEFORE ATTEMPTING ###
	#
	# Officially, this is not recommended. YMMV
	# https://www.raspberrypi.com/news/bookworm-the-new-version-of-raspberry-pi-os/
	#
	# This mostly works if you are on 64bit. You are on your own if you are on 32bit or mixed 64/32bit
	#
	# Credit to anfractuosity and fgimenezm for figuring out additional details for kernels
	#

	#!/usr/bin/env python3

	import base64
	import os
	import sys
	import uuid

	import requests

	!/bin/bash

	export DEB_BUILD_OPTIONS=nocheck
	if [ ! -f "package.xml" ]; then
	echo "This script must be run in the package directory"
	exit 1
	fi

	ROS_DISTRO=jazzy
	DISTRIBUTION=$(lsb_release -i --short \| tr '[:upper:]' '[:lower:]')

	# SPDX-FileCopyrightText: 2021 John Furcean
	# SPDX-License-Identifier: MIT

	import board
	import busio
	from digitalio import DigitalInOut
	import adafruit_requests as requests
	import adafruit_esp32spi.adafruit_esp32spi_socket as socket
	from adafruit_bitmap_font import bitmap_font
	from adafruit_esp32spi import adafruit_esp32spi

	# Must be run in console to work properly
	import numpy as np
	import cv2
	import time
	from scipy import signal
	import matplotlib.pyplot as plt
	import matplotlib
	import threading

	import scipy.signal as sig

	# SPDX-FileCopyrightText: 2020 John Furcean
	# SPDX-License-Identifier: MIT

	import time
	import board
	from digitalio import DigitalInOut, Direction, Pull

	import usb_hid
	from adafruit_hid.keyboard import Keyboard
	from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS

	Idea about the example
	----------------------

	simpletest example could be only present in each individual library.
	More complex example that use the plotter could be in the main library for EnviroPlus-FeatherWing.

	Move from gas to MICS6814
	-------------------------

	Replace gas.py from library with the new library https://github.com/pimoroni/Pimoroni_CircuitPython_MICS6814