Juul

Put this in cmd1.sh

#!/bin/bash

while true; do
    echo "hello"
    echo "you"
    sleep 1
done

Juul

Download and extract casparcg client-2.3.0 tar.gz release file

Fetch missing oscpack. If using code from git repo then you can fetch via git submodules.

cd client-2.3.0/
cd lib/
rm -rf oscpack
sudo apt install git
git clone https://github.com/MariadeAnton/oscpack

Juul

This configures dnsmasq to forward queries to a locally running stubby which makes the DNS over TLS requests.

OpenWRT

opkg update
opkg install stubby

Edit /etc/config/dhcp adding the following to the dnsmasq section:

Juul

If you want to use GRUB to unlock your encrypted drive on boot then you likely want to use LUKS1 instead of LUKS2. If you already have a LUKS2 partition, most guides around the web will tell you that you simply have to convert your keys to PBKDF2 before you can convert a LUKS2 partition to LUKS1, however, as seen in this bug report, that's not quite the whole truth.

Run luksDump:

cryptsetup luksDump /dev/<your_device>

You will get output like this:

Juul

The tool autorandr can save configurations for various monitor setups and load them based on what's plugged in, or be used to manually load a saved configuration.

Use the latest version of autorandr. The version in Ubuntu 20.04 didn't work for me. To install:

sudo pip3 install "git+http://github.com/phillipberndt/autorandr#egg=autorandr"

Then for each monitor configuration, plug monitors in as needed and configure them correctly manually, then run:

Juul

When logged in and scrolling down past a certain point, a sticky header annoyingly appears and takes up vertical screen real estate. Since all of those UI elements are available by scrolling up this seems like more of an annoyance than anything, especially for people using large font sizes on wide aspect ratio screens.

To disable, go to Preferences -> Appearance and click Custom CSS next to Vector (2022). Then save the following to the new page:

.client-js.vector-sticky-header-enabled .vector-sticky-header {
  display: none !important;
}

Juul

There are lots of wrong/incomplete instructions on how to completely disable CORS checks for Chrome/Chromium.

Here's what works for me as of February 2023:

mkdir -p /tmp/foo
chromium-browser --disable-web-security -disable-site-isolation-trials user-data-a-dir="/tmp/foo"

This should only be used by developers who know what they are doing. Logging into anything with a browser running with security disabled is a recipe for getting your credentials stolen or worse.

Juul

I bought one of these weird USB bluetooth audio adapters that only acts as a bluetooth audio transmitter, meaning that it doesn't show up as a bluetooth device at all but rather as a USB audio device.

The specific device I got is branded as 1Mii, shows up in X logs with the name TaiYiLian and in lsusb as "Cambridge Silicon Radio, Ltd".

I can't really recommend it. There is no way to select which device to pair with (I believe it picks the device currently in pairing mode with the highest signal strength) and there is a delay every time audio is played before it kicks in (at least on my system).

Another problem is that it shows up as not just a USB audio device, but also two keyboards and these keyboards send keystrokes which causes X to loose focus with no way of regaining it by clicking. The only way I found to get normal keyboard functionality back is to ctrl+alt+F2 into a terminal and then switch back to X. Unfortunately this seems to happen repeatedly, so just having it plugged in before boot doesn't h

Juul

The SAA-2N is a knockoff/clone of the NanoVNA V2 Plus and you should NOT buy one.

Order an official one from https://nanorfe.com/nanovna-v2.html

However, if one for some reason falls into your hands, it might be unobvious how to find a firmware that compiles for it. I'm not sure if there are mutliple sub-versions of the SAA-2N but this one has a 4" screen.

sudo apt install gcc-arm-none-eabi  python3-serial
git clone -recursive https://github.com/nanovna-v2/NanoVNA2-firmware

Juul

With smartctl you can talk to the hd/ssd's built-in firmware, get detailed status info and ask it to execute tests.

First:

sudo apt install smartmontools

To do a quick health test (which can report OK even if the drive is having issues):