Submitted by Bill St. Clair on Mon, 13 Feb 2017 21:44:04 GMT  <== Computers ==> is a new (to me) image hosting site. They allow 5 megabyte uploads, and have a dirt-simple interface, with only one page, the home page, apparent. I discovered them via a Gab post that used them for its attached image, as I have done for the image below of the home page.

They appear to be hosted by Amazon and cached/distributed by Amazon CloudFront.

Registrant information is "WhoIsGuard Protected", so I don't know who owns them.

The .gg top-level domain is for the Balliwick of Guernsey, which apparently sells domains., the registrar for, charges $75/year for a .gg domain. Simple .com domains go for less than $10/year.


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Elm Digital Ocean Interface

Submitted by Bill St. Clair on Sat, 11 Feb 2017 01:00:10 GMT  <== Computers ==> 

Kakuro Dojo on Android

Submitted by Bill St. Clair on Tue, 17 Jan 2017 16:50:59 GMT  <== Computers ==>   <== Entertainment ==> 

My Kakuro puzzle game, Kakuro Dojo, is now available from the Google Play Store. You may now play on iPhone, iPad, iPad Touch, Android phones and tablets, and a web browser on any device.

Download on the App Store  Get it on Google Play

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Kakuro Dojo iOS App Ships!

Submitted by Bill St. Clair on Fri, 13 Jan 2017 17:02:09 GMT  <== Computers ==>   <== Entertainment ==> 

My Kakuro puzzle game, Kakuro Dojo, is available from the iOS App Store.

Download on the App Store

You can also play it online at

Next: Android version

Zen Master

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Qubes OS

Submitted by Bill St. Clair on Wed, 02 Nov 2016 14:31:01 GMT  <== Computers ==> 

Qubes OS bills itself as "a reasonably secure operating system." It uses hypervisors to provide separation between different domains on your computer. You can make as many of them as you want. They share read-only application software, but cannot write to each other's file storage, unless you explicitly copy between two of them. The windows for each domain are color-coded and identified, in a way that application code can't forge, so you always know which domain you're working with.

Great idea. Haven't tried it yet.

On Twitter @QubesOS.

Available as a 4 gig ISO image or a Torrent. Or on a live bootable USB.

Lots of Asus, Apple, Dell, HP, Lenovo, Sony, and Toshiba hardware have been reported to be compatible.

There's a good half hour overview here (embedded below).

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Gab Emojis

Submitted by Bill St. Clair on Wed, 26 Oct 2016 01:54:43 GMT  <== Computers ==> 

I snarfed from the page source at Gab all the Emojis that are available there, by typing a colon (":") followed by the first characters of its name. I made a big table at:


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Kakuro-Dojo Is Good Enough to Play

Submitted by Bill St. Clair on Tue, 25 Oct 2016 17:37:56 GMT  <== Computers ==> is now mobile-friendly and remembers your state. If you like Sudoku, you might like Kakuro. Check it out.

More details at

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Kakuro Dojo

Submitted by Bill St. Clair on Wed, 19 Oct 2016 19:19:22 GMT  <== Computers ==> I've been working for about ten days on a browser-based puzzle game, Kakuro. I discovered it a few months ago, and have been solving puzzles in an app I got for my iPhone. I had a new idea for the game, so I decided to write my own. I made some progress in plain JavaScript, but got stumped at creating new puzzle layouts.

I recently happened across a new computer programming language, Elm. It's a pure functional language that compiles into JavaScript, and has libraries that make web programming very easy. I decided to convert my Kakuro game to Elm and continue development.

I haven't had so much fun in years! I still didn't figure out how to generate puzzle layouts, but I wrote a Haskell program to scrape layouts from another game site, so that I could continue on game play development, and worry about layouts later. Haskell is a much older programming language, on which Elm is based.

Anyway, the game is now playable, though it doesn't help you any. It's sort of like filling out a Sudoku puzzle in a newspaper. But I'm working on feedback, and noticing when you've successfully completed a puzzle.

The game is most easily played with the keyboard, but the keypad below the game board makes it playable on touch screens. I have yet done window auto-sizing, so you may have to zoom a bit to get the right size.

Aim your JavaScript-enabled browser at, and watch that space for new features as I write them.

I originally called it "Kakuro Master", but I discovered a couple of days ago that somebody has already used that name for a PC product.

The source code is at

I plan to eventually wrap the game for sale on the iPhone and Android app stores.

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Installing Arch Linux on Wandboard

Submitted by Bill St. Clair on Thu, 01 Jan 2015 06:22:18 GMT  <== Computers ==> 

I have a dual-core Wandboard on which I've been running a Debian install a coworker built. I decided to try Arch Linux on it, for yuks, and to see if it fixed a multi-core thread switching bug I recently discovered in Clozure Common Lisp (CCL).

I followed the installation instructions, but when I booted up the Wandboard, it printed a few screen-fulls, ending with successfully mounting the file system I created, but then got:

Failed to mount devtmpfs at /dev: no such device

and the boot hung. Google was no help. Searching the Wandboard and Arch forums was no help. I finally went to #archlinux-arm on Freenode, where leming asked whether I had used the micro-SD card from which I was booting for another OS or machine. I had. He suggested zeroing the start of the card and reinstalling. So I did:

dd if=/dev/zero of=/dev/sdb bs=1M count=1000

This cleared the first gig of the 8 gig card, more than I needed, but after reinstalling the bits, the boot succeeded.

The new Linux still tickles the CCL bug.

I'm liking Arch on the Wandboard. Fast, spare, stable. Debian worked well, too, but somehow this new install feels snappier.

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Dell Inspiron 11 3000 Series

Submitted by Bill St. Clair on Sat, 13 Dec 2014 10:03:10 GMT  <== Computers ==> 

I received yesterday a Dell Inspiron i3147-3750sLV 11.6-Inch 2 in 1 Convertible Touchscreen Laptop from Amazon. Cost me $380 plus New York state sales tax. I'm typing this post on it. It's a cute little thing. I named it "Midget". The keyboard is a little smaller than full-size, but due to shorter-stroke keys, makes my typing less error-prone than my 15" Asus laptop. I bought it to have a machine that will work on an airplane. The 15" laptop doesn't fit in the tiny space between the seat in front of me and me, causing my to curl up my arms in a way that downright hurts after an hour or less of typing.

I chose this model because I read that it runs Ubuntu well. And so it does. I installed Ubuntu 14.10 from a USB flash drive I created on Thursday. It can also dual-boot to the supplied Windows 8.1, but I doubt I'll do that very often.

The "2 in 1 Convertible Touchscreen" means that you can fold the keyboard back behind the monitor, like the Lenova Yoga, but $130 cheaper. Ubuntu doesn't offer an on-screen keyboard, so it's only useful in that mode in Windows, but it makes an OK tablet, except that you must touch the screen very softly to get touches to register, something my daughter is good at but me not so much.

It's got a 4-core Pentium N3430 CPU, running at 2.16GHz. Plenty fast enough for the coding and web surfing I plan to do with it. For $140 more you can get the same machine with an Intel Core I3 processor, which I guess is faster.

The built-in speakers are tinny-sounding, but louder than most builtin laptop speakers, and it has Bluetooth, so I can use my Sharkk boombox for good-enough portable sound.

It weighs only 3 pounds and is purported to have a 7-hour battery life, likely a little less with my typical as-bright-as-I-can-get-it use.

Nowhere near as nice a computing environment as my 27" iMac with Apple's wonderful keyboard, but not bad for occasional travel.

Dell Inspiron 11 3000

Click on image for hi-res version

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