path: root/2020/subtitles/emacsconf-2020--15-moving-from-jekyll-to-orgmode-an-experience-report--adolfo-villafiorita-autogen.vtt

WEBVTT

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okay okay excellent sorry okay so

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uh hello everyone um and um

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uh nice meeting you and let me

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thank the the organizer for all the

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organization and all the work they are

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doing to support us

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my name is adolfo villaferita

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I'm teaching at the university of

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trenton I'm also

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work will shortly be working at

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shared.tech which is a comp

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a non-profit organization developing an

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applications to

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[Music]

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recover surplus food but the the

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reason of the talk today and the reason

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I'm here today

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is to talk about my experience in moving

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from jekyll uh

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static website generator to org mode and

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the reason

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I move to work mode is to have better

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support for

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literary programming on the websites

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at the university of trento where we

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make available the content for the

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the students okay so

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first of all what is a static website

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generator it is basically a tool which

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allows you to

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generate html files out of text files

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containing basically two types of

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information metadata

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and content metadata is let's say a

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set of key pairs describing the the

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content of the file such as the title

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author

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tags and so on and so forth and the

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content is what you actually want to to

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get published on the on the internet in

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the html file

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and usually the content is written in

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some kind of

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markup language such as markdown or

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possibly

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org mode and well jackie is a very

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popular website uh

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a static website generator it is written

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in a ruby

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and what it does it it it systematically

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let's say transforms all the input files

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by making the content into

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html and systematically applying a

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template in order to generate the

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html files which you can then deploy

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on your server of choice to make them

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available on the on the internet

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and one of the features uh most

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well I would say all static website

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generators have

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is a debt of being able to let's say

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collect the metadata information

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uh of the files being part of your of

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your project

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and the reason they do that is because

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you sometimes want to generate pages

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based on the content

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of your um of your projects

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such as for instance the the list of

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posts you have recently published or

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maybe the list of tags

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uh you uh have defined for your post and

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so on and so forth so so

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dracula gives the possibility of

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generating this kind of dynamic

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content by using liquid which is a

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templating language which

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looks like these

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so basically you you have all the

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constructs you can

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expect in a programming language this

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for instance

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is a fourth cycle which

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iterates over all the post or the

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files in a specific directory of the

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jacket project

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and for each post it takes the the title

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and the url and generates a link

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okay so dracule is

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nice and sweet but over the years

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I started using more and more

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systematically

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or mode to write all my files and I

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moved from markdown to word mode I am a

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long time Emacs user so I've been using

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imax for 30 years now so

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or mode is a more recent discovery

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but it is a very nice uh let's say

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discovery I

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I made and the reason I like org mode

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is because for instance you can write

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formulas using

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mac jacks and you can generate diagrams

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or plots with new plots and

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also important is the fact that you have

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the possibility of let's say publishing

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your documents

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to multiple ends backhands such as pdf

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or

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maybe a review presentations or

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or html and this is all made possible

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by bubble which is

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exactly what we just saw in the the

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previous talk

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namely the possibility of executing a

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snippet of code

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embedded in in your pages

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um and our model can also be used

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within let's say jackie and in fact

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there is a

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a nice gem a nice library called jackie

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org which allows you to use org modifies

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directly

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into jekyll but when you start using

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org mode when I started using

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mode I realized I could move

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all my workflow to or my publishing

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workflow to image

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and and and in fact

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org mode is also static website

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generator because

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it has got the possibility of publishing

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um projects made of org mode files

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and one of the nice things about let's

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say that the publishing features of work

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mode

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is that it allows you to define in the

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org publish

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project a list of the components

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which are part of your project and in a

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sense it is

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also more flexible than jackie lee's

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because it also allows you for instance

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to

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let's say publish a single file rather

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than having to recompile everything

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every time you want to publish your

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your project to your website however

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there are some short comments I would

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say or some some

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areas of improvement improvement let me

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say

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the first is that let's say support for

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templating

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is not so obvious as it is let's say

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in jackie or even though there are some

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let's say

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nice extensions such as argo t html

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for instance which allows you to use

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templates and

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more important to me was the fact that

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apparently there is little support for

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the creation of dynamic

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content so I was very curious and very

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keen to use

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or mode for let's say publishing my blog

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and my the the courses at the university

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but then uh I had to find a way

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to let's say being able to publish these

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dynamic pages finding some kind of

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replacement so to speak for uh the

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liquid

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the liquid engine and and the solution

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was

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that at hand actually because

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basically I realized I could use bubble

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for exactly this purpose so rather than

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using bubble for generating

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plots or let's say my other computation

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or whatever I was using them for

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I realized they could use bubble to

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generate

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html which could be let's say

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uh then published uh uh

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in the project so uh so all I needed to

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do then

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was defining some kind of functions some

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kind of code in order to read

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all the org mode uh the metadata of all

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the

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opmod files of my web project so that

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I could let's say then publish uh

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generate the dynamic content and

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this is a snippet taken from

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one of my html projects

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which basically shows the way in which

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I generate the um the list of posts on

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my on my page it is uh

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exactly how the the liquid that we saw

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in a couple of a couple of slides

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earlier that looks like

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uh in inner mode

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and basically what I'm doing I'm using I

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wrote a ruby script which

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reads all the metadata so this uh

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highlighted code

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basically loads the script which is

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stored

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externally and then it collects all the

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metadata from the

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org mode files in the current uh in the

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current directory

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and then the the following the the code

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you can see here

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basically iterate over all the

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past red the at the previous step

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and it generates um

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a list with the title and uh

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and the urls and so basically

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replicating what jackie does so

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okay so there are some some other things

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I have to to deal with in order to let's

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say

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accommodate my workflow and but that was

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relatively easy in the sense that one of

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the

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uh problem one of the issue I had to

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solve was that of let's say having

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a common navigation on all my

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pages uh but that was easily solved

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using

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uh the include feature so I basically

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made available

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and include with all the navigation

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which is uh embedded in all the pages of

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my websites

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uh through the could include and another

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nice feature which

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jackie las is the possibility of

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previewing

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a website before deploying it and but

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then

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Emacs also has got a node which allows

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you to

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launch a web server and in fact

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I wrote a quick ack

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which allows you to which allows to

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basically

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invoke a node on a on our

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mode project and start a local preview

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and then use rsync

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in order to deploy the the website

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um

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five minutes left okay okay more than

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enough okay

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thanks thank you thank you very much I'm

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nearly done so then I can take some some

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questions

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so okay just to give you maybe

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a slightly more in-depth uh

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view of what the pages look like so

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these are

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one of the pages or the source files

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of one of the websites it is

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in literate programming so basically uh

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you see there is some metadata here I

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mean this is a regular old mod file

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and this part here

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basically defines some common options

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for publication

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and these two includes here

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put some extra html in the head part and

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the navigation and here as you can see

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is the code generating the

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the list in chronological order it is

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slightly more complex than the example I

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made in the slide

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because uh there is some more

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elaboration to

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uh to do including putting some

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javascript to identify

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according to let's say the the tags

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so to go back to the to the presentation

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um so the okay so

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I I managed this migration uh a few

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months ago

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and then uh all my workflow is within

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with old mode and within imax and um

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I'm very happy with it because it's

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simplified

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uh quite a bit let's say my public

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publication process

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and uh one of the advantages so another

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advantage so the first advantage is that

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everything is in ork mode and dmax

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second advantage

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is that everything is based on the

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standard machinery provided by orb mode

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so in a sense it is kind of let's say

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more robust with respect to

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dependencies and possible errors and so

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on and so forth

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and um and the fact that the old mode

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allows you to publish

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a single file in a project is is also

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very interesting because

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it allows to let's say be more robust to

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problems you might introduce when

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you're changing when I'm changing the

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setup

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and another interesting thing which I

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realized that I

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uh I could have is that

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in a sense the specification of the

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website

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is uh can be embedded in the website

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itself

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so in a sense this is some kind of let's

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say self

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the command it's a real set documenting

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uh what I'm actually doing so for

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instance

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uh here on my

00:13:43.199 --> 00:13:46.399
website you can see let's say the

00:13:46.399 --> 00:13:48.240
specification of the

00:13:48.240 --> 00:13:51.519
of the of the project which is uh loaded

00:13:51.519 --> 00:13:52.320
from my

00:13:52.320 --> 00:13:55.519
initialization file but then it is also

00:13:55.519 --> 00:13:56.320
published

00:13:56.320 --> 00:13:59.440
together with my home page and it leaves

00:13:59.440 --> 00:14:01.360
with the repository where

00:14:01.360 --> 00:14:05.360
I keep all the sources of my website

00:14:05.360 --> 00:14:08.079
which is kind of nice because it

00:14:08.079 --> 00:14:09.839
basically isolates

00:14:09.839 --> 00:14:14.079
everything in a single in a single place

00:14:14.079 --> 00:14:16.880
okay so there are some examples I'm

00:14:16.880 --> 00:14:18.000
showing them

00:14:18.000 --> 00:14:20.320
more because of the let's say source

00:14:20.320 --> 00:14:21.760
code which

00:14:21.760 --> 00:14:25.519
you can grab from the git repositories

00:14:25.519 --> 00:14:26.160
if you are

00:14:26.160 --> 00:14:28.399
interested of course I'm also available

00:14:28.399 --> 00:14:30.079
to provide some

00:14:30.079 --> 00:14:32.959
support and help if you are interested

00:14:32.959 --> 00:14:34.480
in this kind of stuff

00:14:34.480 --> 00:14:37.760
the the next step for me will be that of

00:14:37.760 --> 00:14:38.560
let's say trying

00:14:38.560 --> 00:14:41.600
making this kind of machinery available

00:14:41.600 --> 00:14:45.199
for more general use at the moment

00:14:45.199 --> 00:14:47.120
if you are interested in trying out my

00:14:47.120 --> 00:14:48.800
suggestion is let's say grabbing the

00:14:48.800 --> 00:14:49.839
sources

00:14:49.839 --> 00:14:52.959
or one of the let's say websites to see

00:14:52.959 --> 00:14:56.000
what how they look like and maybe try

00:14:56.000 --> 00:14:56.720
and

00:14:56.720 --> 00:15:00.160
customize it for your purposes

00:15:00.160 --> 00:15:02.720
and this is basically the content of my

00:15:02.720 --> 00:15:03.839
talk so

00:15:03.839 --> 00:15:06.959
I'm open to two questions and thank you

00:15:06.959 --> 00:15:07.279
for

00:15:07.279 --> 00:15:10.880
your attention you are now unmuted uh

00:15:10.880 --> 00:15:12.880
thank you very much adolfo for your

00:15:12.880 --> 00:15:14.480
awesome presentation

00:15:14.480 --> 00:15:17.360
um I think we have time for maybe like

00:15:17.360 --> 00:15:19.360
one or two questions

00:15:19.360 --> 00:15:21.279
um and then the rest maybe you could

00:15:21.279 --> 00:15:22.880
take up um

00:15:22.880 --> 00:15:26.639
after the stream after sure

00:15:26.639 --> 00:15:30.000
uh I we should do um would you like me

00:15:30.000 --> 00:15:31.839
to read you the questions

00:15:31.839 --> 00:15:35.199
uh yeah probably better because

00:15:35.199 --> 00:15:40.399
I kind of lost there okay no problem um

00:15:40.399 --> 00:15:42.480
okay so someone asks do you have any

00:15:42.480 --> 00:15:45.440
opinion on fern

00:15:45.440 --> 00:15:48.639
fan I I don't know fans

00:15:48.639 --> 00:15:51.839
so I'll give it a try and uh and uh

00:15:51.839 --> 00:15:55.040
and check it out okay

00:15:55.040 --> 00:15:57.839
thanks and um people are also asking do

00:15:57.839 --> 00:15:59.680
you discuss this for example in a blog

00:15:59.680 --> 00:16:01.279
or anywhere else they could find more

00:16:01.279 --> 00:16:02.800
about it

00:16:02.800 --> 00:16:05.600
oh yes I'm going to publish the let's

00:16:05.600 --> 00:16:08.560
say the talk and the content on the

00:16:08.560 --> 00:16:11.120
on my website and then I'll link it from

00:16:11.120 --> 00:16:12.320
the max conf

00:16:12.320 --> 00:16:14.720
conference so that it will be easier for

00:16:14.720 --> 00:16:15.680
people to

00:16:15.680 --> 00:16:19.040
to reach it so I will shortly make it

00:16:19.040 --> 00:16:22.880
available right after the conference

00:16:22.880 --> 00:16:25.440
wonderful and I think that's all for the

00:16:25.440 --> 00:16:26.160
questions

00:16:26.160 --> 00:16:28.560
thank you very much okay thank you very

00:16:28.560 --> 00:16:29.600
much thank you

00:16:29.600 --> 00:16:34.800
and cheers bye cheers bye