Arghblarg

While GNU APL has, as its primary focus, adherence to the APL2 ISO 13751 standard, it is open to enhancements which do not violate compatibility with APL/2.

So, as of SVN 1847M:

      s ← 'Mississippi'
      ≠s    
1 1 1 0 0 0 0 0 1 0 0
      (≠s)/s
Misp

In response to suggestions by a lunatic in the US Oval Office, Green Party Canada's leader Elizabeth May suggested Canada should invite western states Washington, Oregon and California join B.C and split from Canada to form the 'Cascadia' eco-state.

(Note this article is from Jan 8, 2025 and Elizabeth May has since become co-leader of the party alongside Jonathan Pedneault).

Would be a darn shame if tariffs applied to it for the US... oh wait

EDIT see my comment below which uses a much cleaner method that avoids the noisy multple udev events and doesn't require udev/eudev at all

This activates/de-activates the secondary display underneath the removeable keyboard properly. Note though that the keyboard is a composite unit and causes a whole train of udev events, rather than a single one, which means the desktop will flicker multiple times on each re-attachment of the keyboard :(. If anyone knows how to just run the scripts on the 'last' udev event, it would make for a cleaner experience. (XFCE sometimes crashes out on me due to the rapid xrandr reconfigs but it's mostly usable).

[/usr/local/bin/usb-0b05_1b2c-in]

#!/bin/bash

if [ "$(xrandr --listmonitors | wc -l)" -gt "2" ]; then

#logger -p user.info "=== KEYBOARD REPLACED ==="

xrandr --output eDP-2 --off

fi

[/usr/local/bin/usb-0b05_1b2c-in_udev]

#!/bin/bash

export PATH=/bin:/sbin:/usr/bin:/usr/sbin

/usr/local/bin/usb-0b05_1b2c-in &

[/usr/local/bin/usb-0b05_1b2c-out]

#!/bin/bash

if [ "$(xrandr --listmonitors | wc -l)" -lt "3" ]; then

#logger -p user.info "=== KEYBOARD REMOVED ==="

xrandr --auto && xrandr --output eDP-2 --below eDP-1

fi

[/usr/local/bin/usb-0b05_1b2c-out_udev]

#!/bin/bash

export PATH=/bin:/sbin:/usr/bin:/usr/sbin

/usr/local/bin/usb-0b05_1b2c-out &

[/etc/udev/rules.d/99-zbduo2024-kbd.rules]

ACTION=="add", ATTRS{idVendor}=="0b05", ATTRS{idProduct}=="1b2c", ENV{XAUTHORITY}="/home/username/.Xauthority", ENV{DISPLAY}=":0", OWNER="username", RUN+="/usr/local/bin/usb-0b05_1b2c-in_udev"

ACTION=="remove", ENV{ID_MODEL}="ASUS_Zenbook_Duo_Keyboard", RUN+="/usr/local/bin/usb-0b05_1b2c-out_udev"

Now, to get your laptop keyboard working when removed, in bluetooth mode, one must

1. Ensure bluetooth-ctl is running and initiate 'pair' in Bluetooth by clicking 'Create pairing with this device' (key icon in the 'Blueman-Manager' window)
2. Turn on bluetooth (switch on the left of the keyboard)
3. Remove the keyboard
4. Hold F10 for 4-5 seconds until its blue LED starts blinking rapidly (kbd in pairing mode)
5. Watch your desktop notifications for the connection message with the BT challenge pin code (6 digits)
6. type the challenge PIN code on the keyboard
7. Now the keyboard should be paired.

... now if only I could get the sound device (Intel HD Audio) and brightness control working for both screens!

I was searching online for quite a while this evening, chasing a half-remembered bit of trivia, that trilobites were supposedly unique in their use of calcite for their lenses, composing the ommatidia of their compound eyes.

It must be so obvious to scientists in the field of studying insects that they never mention it in their papers...

So, what compound(s) do modern arthropods use in their compound eyes. If it isn't calcite, what do modern 'bugs' use?

Whether you are an old hand at APL, or someone just discovering the language, having the symbols in the standard layout right there on your keyboard is a great help... dedicated APL keyboards are pretty expensive, so consider these stickers that let one adapt any standard desktop or laptop keyboard!

APL keyboard sticker set on Tindie

To set up your keyboard for APL programming on Linux, see here.

If you haven't heard of it, this island has a population that the world has collectively decided to leave alone, mostly because they have proven, on multiple occasions, that they absolutely do not want visitors. Like, arrow-to-death anyone attempting to land or even visit near their shores.

This probably cannot go on forever... but maybe, it could. Essentially, we are already implementing a 'Prime Directive' of sorts here. Would the 23rd, 24th, ... centuries in Star Trek canon still have this little island on Earth, isolated from not just from Earth's own unified Federation society, but from the greater Federation races? What steps would the Federation and Earth take to maintain their isolation and the ecosystem on which they depend?

Would make for an interesting episode, or at least a cool side-note reference in one :)

For Funtoo users, simply sudo emerge dev-lang/apl :)

Normally I avoid linking to the old sh$thole here ('cuz you know, f*ck u/Spez), but this is an exception.

DFV posted DIRECTLY to 'stonk: https://www.reddit.com/r/Superstonk/s/8TNza7V2IN

Discussion over on the 'stonk sub: https://old.reddit.com/r/Superstonk/comments/1d6r84q/roaring_kitty_theroaringkitty_on_x/

Twitter post tonight: https://x.com/theroaringkitty/status/1797418617908154621

GNU APL is easy to build on your own Linux machine, though the steps aren't detailed on the website.

Benefits of building yourself locally:

• One can customize how many cores GNU APL has access to
• Customizing optional extensions like PNG image, SQLite, GTK support etc.
• Having the latest bugfixes

1. Obtain the latest source

   • mkdir apl-build
   • svn checkout http://svn.savannah.gnu.org/svn/apl/trunk

2. Configure using autotools

   • cd trunk
   • make clean
   • ./configure CORE_COUNT_WANTED=3 RATIONAL_NUMBERS_WANTED=yes --with-ctrld_del

   Use ./configure --help to see other options, adjust to taste

3. Build and install

   • make -j && sudo make install

4. Set up your default workspace

   • cd ~
   • mkdir -p GNUAPL/workspaces