treehouse/content/about-treehouse.tree

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- liquidex's treehouse can be thought of as many things.

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+ ### the treehouse is a reflection of my own personality

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    - this is a literal braindump

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    - whatever's on my mind at the time that I wanna share with the world, I write down here

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        - doing my best to keep it approachable and readable by not just me, but _you_ too

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    - I built this treehouse because I love sharing cool stuff with people

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        - and also because I am obsessed with many things and I wanna share this obsession with the world

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    - wouldn't you make yourself at home?

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    + …

        % content.link = "about-treehouse/emoji"
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        + by the way did you know this website has custom emojis? and quite a lot of them, too

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+ ### the treehouse is a statement of artistic expression

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    - the treehouse is not your typical blog

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    - as you can tell the structure is quite different

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        - instead of containing finished posts, it just sort of… is

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        + nesting indefinitely

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            + like really, where does it end?

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                + _where?_

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                      content.link = "about-treehouse/the-end-is-never"
                    + _*WHERE???*_

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        - always evolving and shaping and shifting

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            - so that I never need to _finish_ anything

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            - I can just sit down, type something out

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                - then forget about it

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                - then come back again, type out something more

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                - isn't this just way more pleasant?

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                - isn't that… in the spirit of [Agile](https://en.wikipedia.org/wiki/Agile_software_development)

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                    - …of all things?

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                    - not that I designed around its ideas, but there's a semblance, isn't there?

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    + it is designed to be elegant and clutter-free

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        - the treehouse contains no ads to annoy you, no [sidebars][page:design/sidebars] to interrupt

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        - it doesn't even have a navigation bar, because it doesn't need one

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        - it's built to focus on the substance

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        - it's built to let your imagination go free

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        - it's just a cool space to let go of your worries, and breathe

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    + it is designed to be user-friendly

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        - because there is too much software nowadays that does not care about _you_

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        - and that frustrates me, too

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        - there are bits of JavaScript that power this site, to make it just that little bit more pleasant

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            - but without overwhelming your computer or bandwidth

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            - you can disable the JavaScript, and everything will mostly work

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                - but you may not find the experience favorable

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    + but most important of all, it is _weird_.

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        - weird as me

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        - writing this "poem"

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            + can you even call it that?

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                + have I invented something new here?

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                    - the "Choose Your Own Poem" lol

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        - I understand if this form of writing can be daunting at first, but please, give it a shot. I'm doing my best to make it as accessible as possible.

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+ ### the treehouse is a mostly statically generated website

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    + weird poems and philosophical talk are over, it's time to focus on the tech.

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        - call this an overview, Defense of Design, or what have you

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    - treehouse is built in the programming language that gives me the most pleasure coding.

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        - no need for you to know more. :shhh:

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        - personally… the language you build a personal project with almost never matters. it's rather how you execute your ideas.

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            + therefore I find boasting that my project is powered by a `$LANGUAGE` or a `$FRAMEWORK` unnecessary.

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                + but if you really care that much, it's built with Rust, plain HTML5, plain CSS, and
                [Vanilla JS](http://vanilla-js.com/).

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                    - (yes, I know that website is super old, but I still find it incredibly funny :hueh:)

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        - if you wanna browse the source code, feel free to [check it out here][def:treehouse/repo]

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    - as I alluded to [here][branch:01H89RFHCQ3EAP0F6PRSEK7S1T], treehouse is built to decay gracefully
      as you take away the fancy parts.

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        + you will be able to read it just fine without JavaScript, just that it'll be a little
          less pleasant.

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            - that's because the JS handles stuff like lazy loading of linked trees.

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                - you may have seen a brief _"Loading…"_ text flash before your eyes as you opened this
                _about this_ branch - that's it downloading another tree and pasting it into this document

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                    - when JS is unavailable we fall back to a plain old `<a>` link through a
                    `<noscript>` tag. if you have uBlock Origin, or any other JS blocker, you can try
                    that out yourself!

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            - the JS also lets you select text in these `<details>` elements without them collapsing
              as you release the mouse button.

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                - I have no clue why it is this way by default, but frankly it's like a 5 line
                  usability fix, so why not.

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                    - if you have accessibility concerns about this decision, please let me know.

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            - it also saves your progress as you read. if you refresh the page, you'll notice you end up exactly where you left off!

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            - but, there is one very crucial piece of JavaScript that makes this website tick, and your experience *will be degraded* if you disable it. that feature is linking to branches.

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                - by default, if you link to an element by its id and it's contained within a `<details>`, the `<details>` will not expand. :ralsei_dead:

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                - therefore there's a bit of JS to make that work, _and_ to tie that together with lazy loading.

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        - treehouse will not work *as* fine without CSS though - the `<details>` will look extremely
          janky, but the content should still be fully readable.

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    + myself, I'm writing this content in a bespoke format called `.tree`.

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        - the structure of `.tree` files is extremely minimal. there are only a few syntactic features to speak of.

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        - here's a taste of `.tree`:

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            - ```treehouse
            % id = "root"
            - this is a branch

                % id = "child"
                - this is a child branch

                + this is a branch that is collapsed

                    - and this is a child of that branch

                % content.link = "some-other-tree"
                - and this branch links to another tree
            ```

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        - the `.tree` format is line-based. that means the `%`, `-`, and `+` tokens are only
          interpreted when at the beginning of a line.

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        - the basic unit of `.tree` is a branch. branches…

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            - …are located at a specific _indent level_

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            - …may or may not have _attributes_ - that's what the percentage sign `%` begins

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            - …may or may not be expanded by default (this is the branch's _kind_) - that's what the minus `-` and plus `+` tokens do

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        - each branch is constructed in this order: optional attributes, kind, content

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        - and ends when another line beginning with `%`, `-`, or `+` is found.

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        - other than that, `.tree` assumes nothing about what format the branch attributes or content are encoded in.

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            - I chose TOML and [Djot](https://djot.net) for their ease of use and flexibility, but the parser couldn't care less.

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                - …actually, that's a lie. see that code example above? Markdown code fences \`\`\` are handled specially to let embed `.tree` source code blocks within `.tree` files. that's all.

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                - I actually used to use Markdown, but then I saw Djot and progressively warmed up to it until I convinced myself fully that "yes, this is a better markup format."

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    - every branch in the treehouse has a globally unique ID.

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        + this is because I want every branch to be individually linkable and quotable.

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            - if you ever want to link anything I said in an argument online: hover over a branch, right-click that little _permalink_ icon that's on the right side of the screen, and _Copy Link_.

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        - but manually coming up with ids for branches would be quite the nuisance.

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            + that's why with the power of Tools Programming™, I built a tool that fills out all the ids for me.

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                - I chose [ulids](https://github.com/ulid/spec) for generated ids, for a few reasons:

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                    - they're guaranteed to be unique, so I can be sure no two branches end up having the same id

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                        - which is precisely what lets me pull the trick where I embed one tree within another, and you just dig into `index.html`.

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                    - they embed a timestamp, which I can use to display the date/time when a branch was written, because I generally `fix` branches right after writing

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                        - as well as highlight branches which were added since your last visit

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                        - not that either of these features are implemented as of writing this

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                            - actually they're implemented now so yeah

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                    - they're much more compact than [uuids](https://en.wikipedia.org/wiki/Uuid)

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                        - which use 32 hexadecimal digits separated unevenly by 4 dashes, giving you 36 characters.

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                            - who even remembers how many digits there are between each dash? I know I don't.

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                        - ulids on the other hand are 26 digits encoded with [Crockford's base32](https://www.crockford.com/base32.html)

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                            - which is cool because it's much denser while avoiding ambiguous characters - `0`, `O`, and `o` are all interpreted as `0` (zero).

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    + noticed how fast the treehouse restores your state? there's basically no delay.

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        + this is because it restores your state _as it's loading in_, by using a [`MutationObserver`](https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver).

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            - initially the treehouse used Web Components, but for Webkit compatibility reasons, I had to switch that out to a more bespoke solution.

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            - elements such as linked branches are implemented using _spells_, which are a custom framework for composing behaviors on top of existing elements.

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        + in addition to that, many things on the treehouse are Web Components, which are another awesome API that lets you prepare the DOM as soon as everything is ready.

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            - despite many people calling that API extremely low-level, I beg to differ. it's actually pretty easy and pleasant to use.

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            - most importantly it lets me enhance vanilla `<li>` elements with custom behavior executed on load, which I use to restore your reading progress as the page is loading in.

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    + while not strictly a technical topic, I'd like to shout out [Recursive](https://recursive.design) for being an awesome font :ralsei_love:

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        - (not to be confused with [Font Awesome](https://fontawesome.com/), which I do not use here. icon designs are my own.)

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        + being a variable font, I can tweak the text's look and feel on many different axes.

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            + the one that I wanted to shout out in particular is `CASL`, which lets me make it look a lot more happy and playful.

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                + almost like Comic Sans, but without all the stigma.

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                    - I actually considered using [Comic Neue](https://comicneue.com/) as the font on this website, but ultimately chose Recursive.

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                        - Comic Neue and not the Real™ Comic Sans MS because it's licensed under the SIL Open Font License, which means I could redistribute it on my website.

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                            - not everyone runs Windows or macOS, so just assuming the reader has Comic Sans installed isn't ideal.

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            + {-in particular the variant on my website is 100% casual (`CASL`), and -2.0 slanted (`slnt`).-}

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                + that little bit of slant makes it look just a little more like handwriting.

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                    - I actually thought of handwriting all the text in the treehouse, but ultimately thought it would be too much work. and a technical challenge too.

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                        - how to make it scalable (as in, how to keep it smooth when you zoom in?)

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                        - how to make it scalable (as in, my hand really fucking hurts from writing this much, and I *really* do not wanna go back to the times of writing school essays please?)

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                        - how to make it scalable (as in, how to distribute this many images to the user without tanking their internet connection?)

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                        - not to mention I'd have to handwrite a lot of text, and *then* either use OCR or type it all out again for accessibility. yeah, no thanks methinks.

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                - NOTE: not slanted anymore. `slnt` is 0.