lispstudent

Common Lisp Cheatsheet for Python Programmers

This document is for readers familiar with Python who wish to apply that

lispstudent

#!/bin/bash
# block-tahoe.sh — Block "Upgrade to Tahoe" alerts and System Settings indicator
# Version: 1.2.0 — 2026-03-01
#
# Creates and installs a macOS configuration profile that defers major OS upgrades
# for 90 days (the maximum Apple allows via com.apple.applicationaccess).
#
# Based on: https://robservatory.com/block-the-upgrade-to-tahoe-alerts-and-system-settings-indicator/
#           https://github.com/travisvn/stop-tahoe-update
#

lispstudent

A minor list of how to create and boot a Bhyve-zone in Joyent SmartOS

cd /opt/local/artifacts/
vim zonemanifestBhyveFreeBSD.json
vmadm create < zonemanifestBhyveFreeBSD.json
curl -kLo /zones/UUID/root/FreeBSD-12.0-RC3-amd64-bootonly.iso

The following line is for KVM, not BHYVE, hence obsoleted for non-legacy boot options

cd /zones/<<UUID>>/root/

lispstudent

How to install OpenBSD with bhyve-vm on SmartOS (20190424):

tl;dr:
  Create a bhyve vm with an empty disk, where you put an install image with dd afterwards.
  "bhyve_extra_opts": "-w"
  "bootrom": "uefi"
  "vcpus": 1 (is needed too, some say..)
  Change to serial console when booting the install image

Do it like this:

lispstudent

Eye care: prevent PWM and or temporal dithering
waydabber edited this page on Oct 7 · 13 revisions
Two common issues with computer monitors that cause eye strain for people who are sensitive to high frequency flickering are the following:

PWM is a technique (Pulse Width Modulation) used in some displays to control brightness or achieve a dimming effect. It involves rapidly turning the screen's LED backlight (or for OLED screens, pixels) on and off at a specific high frequency, creating the illusion of different brightness levels.
Temporal dithering is a technique to produce more colors than what a display's panel (or display connection) can support (for example showing colors with 10 bit color depth - "billions of colors" - on an 8 bit - "millions of colors" - panel). When the display does not have the capability to show the full color depth, it will emulate missing colors by rapidly change between two adjacent color levels thus creating a middle ground.
BetterDisplay has some capabilities to help with these

lispstudent

Windows 10 Pro

Windows 10 Pro ISO

Create a fresh Windows 10 Pro ISO file with Microsofts Media Creation Tool. (I created a Windows 10 Pro 64 bit German ISO image)

Save the created image on your SmartOS global zone.

cp ... /zones/Windows10_64de.iso

lispstudent

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.

menuentry "SmartOS" {
    recordfail
    insmod ext2
    insmod gzio

lispstudent

# Licensed under CC BY 3.0 http://creativecommons.org/licenses/by/3.0/
# Derived works must attribute https://gist.github.com/4492300 at the beginning, and the date.

##################################################################
Installing and Configuring SmartOS at Hetzner (with a /29)
##################################################################

# This is another version of Jahewson's Gist here: https://gist.github.com/jahewson/4492300 that adds a gate to prevent packets 
from leaking out from the main MAC address.

lispstudent

#!/usr/bin/env zsh

################################################################################
# 2024-08-08
# Install zsh's prezto to a user's $HOME
################################################################################

DIRECTORY="~/.config"

# append "/" to make user $DIRECTORY is a dir, not a file.

lispstudent

Install FreeBSD 14.0 on Hetzner server

Hetzner no longer offers direct install of FreeBSD, but we can do it ourselves. Here is how :)

Boot the hetzner server in Hetnzer Debain based rescue mode. ssh into it. then:

wget https://mfsbsd.vx.sk/files/iso/14/amd64/mfsbsd-14.0-RELEASE-amd64.iso

qemu-system-x86_64 \