funky-monkey

#!/usr/bin/env python3

PRINTER = '/dev/usb/lp0'  # the printer device

DOTS_MM = 8  # printer dots per mm, 8 == 203 dpi
WIDTH_MM = 100  # sticker width, mm
HEIGHT_MM = 35  # sticker height, mm
GAP_MM = 2      # sticker gap, mm

FONT = "0"  # built-in vector font, scalable by X and Y

funky-monkey

1. Connect printer, install printer drivers, and enable Printer Sharing.
2. Open terminal, run: dns-sd -Z _ipp._tcp. You'll see a few lines of repeated text. Look for your printer's name, next to that record you will see a TXT, copy everything after TXT into a notepad.
3. In that TXT line, you'll see a line like this: "pdl=application/octet-stream,application/pdf,application/postscript,image/jpeg,image/png,image/pwg-raster" Change that, to add ,image/urf. So it'll look like: "pdl=application/octet-stream,application/pdf,application/postscript,image/jpeg,image/png,image/pwg-raster,image/urf"
4. Now take that entire TXT line, and add it to this: dns-sd -R "name_to_be advertised" _ipp._tcp.,_universal . 631 URF=none pdl=application/pdf,image/urf YOUR_TXT_STRING
5. Run that line in the terminal, and Airprint should be enabled.

funky-monkey

function hide_wordpress_icon() {
    echo "<style>#wp-admin-bar-wp-logo, #wp-admin-bar-comments {
		border: 0; clip: rect(0 0 0 0); height: 1px;margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px; }</style>";
}
add_action('admin_head', 'hide_wordpress_icon');

funky-monkey

Fix unclean restart:

sudo fsck -y /dev/sda1 && sudo reboot

Umbrel.local - not accessible - what to do

I see a lot of users having issues connecting to umbrel.local and most of them are Windows users. People… please before getting into running a node, DYOR and learn at least basics about networking, TCP/IP, IPs, LAN, WAN.

Running a node is something serious, is not a toy!

funky-monkey

ssh-copy-id -i ~/.ssh/mykey user@host

Test it: ssh -i ~/.ssh/mykey user@host

OR: cat ~/.ssh/raspberry-pi.pub | ssh user@12.34.56.78 "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys

funky-monkey

Download YouTube playlist videos in separate directory indexed by video order in a playlist

youtube-dl -o '%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s' https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re

Download all playlists of YouTube channel/user keeping each playlist in separate directory:

youtube-dl -o '%(uploader)s/%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s' https://www.youtube.com/user/TheLinuxFoundation/playlists

funky-monkey

A very simple and straightforward way that worked for me is as follows:

Stop apache2.

sudo service apache2 stop

Uninstall Apache2 and its dependent packages.

funky-monkey

Error

Ran into an issue, where for some reason, on one of my Macs, XCode swift works fine, but on another, I got an error like:

$ xcrun --sdk macosx --find xctest
xcrun: error: unable to find utility “xctest”, not a developer tool or in PATH

funky-monkey

Now that all modern browsers support SVG favicons, here's how to turn any emoji into a favicon.svg:

<svg xmlns="http://w3.org/2000/svg" viewBox="0 0 100 100">
    <text y=".9em" font-size="90">
    Pile of poo
    </text>
</svg>

Useful for quick apps when you can't be bothered to design a favicon!

funky-monkey

This Gist contains an example code fragment of how to read temperature and humidity data from Inkbird ibs-TH1 bluetooth thermometer in NodeJS with Noble.

Note that you can also read values directly via command line with gatttool:

gatttool -b <MAC> --char-read --handle=0x002d

Example value: