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Questions Asked During the Presentation Websockets For Real-time And Interactive Interfaces At Code4lib 2014

Apr 7, 2014

During my presentation on WebSockets, there were a couple points where folks in the audience could enter text in an input field that would then show up on a slide. The data was sent to the slides via WebSockets. It is not often that you get a chance to incorporate the technology that you’re talking about directly into how the presentation is given, so it was a lot of fun. At the end of the presentation, I allowed folks to anonymously submit questions directly to the HTML slides via WebSockets.

I ran out of time before I could answer all of the questions that I saw. I’ll try to answer them now.

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HTML and PDF Slideshows Written in Markdown with DZSlides, Pandoc, Guard, Capybara Webkit, and a little Ruby

Nov 8, 2013

Update: This post is still an alright overview of how to simply create HTML slide decks using these tools. See the more recent version of the code I created to jump start slide deck creation that has added features including synchronized audience notes.

I’ve used different HTML slideshow tools in the past, but was never satisfied with them. I didn’t like to have to run a server just for a slideshow. I don’t like when a slideshow requires external dependencies that make it difficult to share the slides. I don’t want to actually have to write a lot of HTML.

I want to write my slides in a single Markdown file. As a backup I always like to have my slides available as a PDF.

For my latest presentations I came up with workflow that I’m satisfied with. Once all the little pieces were stitched together it worked really well for me. I’ll show you how I did it.

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DLF Forum 2013 presentation: Embedded Semantic Markup,, the Common Crawl, and Web Data Commons

Nov 4, 2013

I spoke at the 2013 DLF Forum about Embedded Semantic Markup,, the Common Crawl, and Web Data Commons: What Big Web Data Means for Libraries and Archives. My slides, code, and data are all open.

Here’s the abstract:

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Back Up Middleman Source to Dropbox Automatically on Build

Oct 11, 2013

Yes, I have my site source under version control. In order to have a private repository for free I’m using BitBucket to host my source repository. I then publish the build to github pages. In any case, I still like knowing that I have a backup of my site content somewhere else. I also wanted to play around with custom extensions. Here’s a task I use to backup the source of my site to Dropbox after each build.

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Automated Testing of HTML5 Microdata in Rails

Mar 22, 2013

While HTML5 Microdata has the advantage of using visible markup, it can still be invisible enough that when your app changes your Microdata goes out of sync. Testing your Microdata is important for ensuring your Microdata parses correctly and you’re communicating to the search engines what you think you are. I’ll show you a simple example of test-first addition of Microdata in a Rails project.

Spoiler: It is super easy using the microdata gem.

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