The Vault

If you were a fan of Cube (which you should be), then you should definitely check out The Vault.

It's a web series that started last year, but has just gotten a big influx of viewers. Watch all 7 episodes and then share your theories with me on twitter.

As a bonus, try solving the puzzle on their blog. Should take about 20 minutes (puzzle spoiler).

Patricio Palladino has done a really nice job with hieroglyphy, a library for turning any JavaScript code into strings of only ()[]{}!+. The explanation of his blog is a great read.

Björn Höhrmann's excellent compact UTF-8 decoder is one of those C masterpieces that makes you realize quite how powerful the language can be.

If you often find yourself using curl or even crafting HTTP requests by hand in telnet, httpie seems like some nice syntactic sugar. Easily make GETs and POSTs from the command line, with sensible syntax

Perhaps next time I'm writing a presentation, I'll give reveal.js a try. Some of the examples looks pretty good.

git-up seems to be the Git tool I had been missing - fetch, stash, rebase, unstash for all branches.

In the wake of password-hacking-month (Linkedin, Last.fm, Yahoo, etc) Jeremy Spilman talks about an interesting idea for increasing the cost to stealing password databases, rather than just the hashing: part 1, part 2

If your application uses getaddrinfo instead of gethostbyname (for IPv6), DNS round robin will not work. Urgh. Recently found this as the cause of our Java app only connecting to half of the hosts in our AWS ELB.

Javelin JS is full of interesting little things - always fun to find out what compormises other teams make to allow their particular development model to scale. The css classes vs sigils part makes a lot of sense.

More Underground Maps

Andrew Godwin has just released an excellent mapping project, visualizing a few London Underground stations, complete with public corridors, escalators, spiral staircases and platforms. The maps are 3D models, which you can pan and zoom inside the browser. Digging into the source is also worth a look, since it uses some nice canvas and three.js guts.

Poking around his other work, the Twin Tubes map is also worth a look - the underground network with each individual track visualized.

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About

This is the personal website of Cal Henderson, Slack co-founder & CTO.

I give occasional talks, write code and sometimes articles.

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