redo date parsing stuff; add about section to homepage

4 files changed, 73 insertions, 53 deletions

diff --git a/article-dates.lua b/article-dates.lua
index 72bdba5..df4e2a0 100644
--- a/article-dates.lua
+++ b/article-dates.lua
@@ -1,19 +1,32 @@
+local function parse_inlines(text)
+  return pandoc.read(text, "markdown").blocks[1].content
+end
+
 function Pandoc(doc)
-  local heading
+  local articles = pandoc.List()
+  local blocks = pandoc.Blocks({})
 
   for _, block in ipairs(doc.blocks) do
     if block.t == "Header" and block.level == 1 then
-      heading = block
-    elseif heading and block.t == "Para" then
-      local date = pandoc.utils.stringify(block.content)
-      table.insert(heading.content, pandoc.RawInline(
-        "html", '<span class="article-date">' .. date .. "</span>"
-      ))
-      heading = nil
+      local date = block.attributes["data-date"]
+      if not date or date == "" then
+        error("article is missing data-date: " .. pandoc.utils.stringify(block.content))
+      end
+
+      block.attributes["data-date"] = nil
+
+      local label = pandoc.Inlines(block.content)
+      label:insert(pandoc.Span(parse_inlines(date), {class = "article-date"}))
+      articles:insert({pandoc.Plain({pandoc.Link(label, block.identifier .. ".html")})})
+
+      blocks:insert(block)
+      blocks:insert(pandoc.Para(parse_inlines(date)))
     else
-      heading = nil
+      blocks:insert(block)
     end
   end
 
+  doc.blocks = blocks
+  doc.meta["article-list"] = pandoc.MetaBlocks({pandoc.BulletList(articles)})
   return doc
 end
diff --git a/index.md b/index.md
index 3a260dd..3c47448 100755
--- a/index.md
+++ b/index.md
@@ -2,8 +2,7 @@
 pagetitle: yummers
 lang: en
 ---
-# how do you evenly tile a column?
-12 Jul 2026
+# how do you evenly tile a column? {data-date="12 Jul 2026"}
 
 While walking through town the other day, I saw a pillar that looks a bit like this:
 
@@ -189,8 +188,7 @@ $$
 e = 2r \tan{\frac{\pi}{n}}
 $$
 
-# histogram-preserving tri-planar projection
-31 March 2026
+# histogram-preserving tri-planar projection {data-date="31 March 2026"}
 
 I've been messing around with Burley's "On Histogram-Preserving Blending for
 Randomized Texture Tiling" ([link](https://jcgt.org/published/0008/04/02/)) for
@@ -242,8 +240,7 @@ The astute reader might find that just increasing contrast after the blend
 would produce a similar result, and I'm inclined to agree. The only possible
 advantage that this method has is that it doesn't demand fine-tuning.
 
-# using linux as a desktop os in 2026
-9 Feb 2026
+# using linux as a desktop os in 2026 {data-date="9 Feb 2026"}
 
 About a month ago, my PC's boot drive died. I had been running Windows 11 with
 moderate dissatisfaction for a few months, so I decided to switch over to
@@ -479,8 +476,7 @@ on Vulkan,~~* is what's keeping me from just deleting Windows.
 
 The Linux desktop is really good. You should give it a try.
 
-# hemi-octahedral impostors
-14 Jan 2026
+# hemi-octahedral impostors {data-date="14 Jan 2026"}
 
 *Note: this blog post is only like half way complete. I may or may not circle
 back to it. The stuff on octahedral mappings is all finished, but the
@@ -768,8 +764,7 @@ wrong.
 *Note: I stepped away from this project and don't plan to revisit it soon. If I
 do, I'll post updates in a followup and link to it from here.*
 
-# 6 wave dispersion relations with derivatives
-21 Sep 2025
+# 6 wave dispersion relations with derivatives {data-date="21 Sep 2025"}
 
 Tessendorf's 2005 paper
 "[Simulating Ocean Water](https://people.computing.clemson.edu/~jtessen/reports/papers_files/coursenotes2004.pdf)"
@@ -989,8 +984,7 @@ derivations of each derivative:
     Divide numerator and denominator by $\rho$ (or p in wolfram) to make them
     match.
 
-# meow meow meow meow
-10 Sep 2025
+# meow meow meow meow {data-date="10 Sep 2025"}
 
 meow meow meow meow meow meow meow meow'meow meow meow meow meow. meow
 meow meow meow.
@@ -1103,8 +1097,7 @@ meow
 * meow meow meow meow meow meow meow meow meow meow meow,
   meow 8.8% meow meow meow meow meow ~55% meow meow meow meow.
 
-# rasterized ray marching at scale
-11 Jun 2025
+# rasterized ray marching at scale {data-date="11 Jun 2025"}
 
 I've long had the dream of creating high resolution chains on characters with
 raymarching. The problem is that Unity's object transform is based on the
@@ -1357,8 +1350,7 @@ can correct for that in your SDF.)
 ![Visualize baked data in
 Unity.](./images/2025_06_11/fake_origins_39.jpg){width=80%}
 
-# how much CO2 do American cars produce?
-23 May 2025
+# how much CO2 do American cars produce? {data-date="23 May 2025"}
 
 TLDR: About $1.520 \cdot 10^{12}$ kg/year. This increases the CO$_2$ in the
 atmosphere by about $0.048$% per year.
@@ -1489,8 +1481,7 @@ we have arrived at the same conclusion as the "entrenched academics": that the
 change in CO$_2$ in the atmosphere over the last 200 years is due to human
 activity.
 
-# "big llms are memory bound"
-22 May 2025
+# "big llms are memory bound" {data-date="22 May 2025"}
 
 There is wisdom oft repeated that "big neural nets are limited by memory bandwidth."
 This is utter horseshit and I will show why.
@@ -1571,8 +1562,7 @@ In conclusion:
    bandwidth and compute dictate throughput in inverse proportion to model size.
 3. People on the internet (especially redditors) are fucking stupid.
 
-# meow meow meow meow
-14 Apr 2025
+# meow meow meow meow {data-date="14 Apr 2025"}
 
 meow meow meow meow meow meow meow meow. meow meow meow meow, meow meow
 meow meow meow meow meow.
@@ -1583,8 +1573,7 @@ meow meow; meow, meow meow meow meow meow meow meow.
 
 meow meow meow meow meow. meow meow meow. meow meow.
 
-# riding crop
-7 Apr 2025
+# riding crop {data-date="7 Apr 2025"}
 
 ![Image of a 3D model of a riding crop.](./vr_assets/riding_crop/cover_photo.jpg)
 
@@ -1595,8 +1584,7 @@ the gumroad page for setup instructions.
 Gumroad suspended my account over this product. Yes, over a fucking
 *riding crop*. That's why it's hosted here. Enjoy the 100% discount <3
 
-# a panoply of frameworks
-3 Apr 2025
+# a panoply of frameworks {data-date="3 Apr 2025"}
 
 I want to use electron. I know that raw CSS sucks dick so let's use a
 framework. Bootstrap sucks so let's use tailwind. Oh wait tailwind has a
@@ -1611,8 +1599,7 @@ Good thing I actually read the electron docs.
 
 I want to die.
 
-# electron first impressions
-1 Apr 2025
+# electron first impressions {data-date="1 Apr 2025"}
 
 Occasionally I want to build some throwaway app for use by other people.
 CLIs are nice and all, but they're hard to launch from VR, and most people
@@ -1647,8 +1634,7 @@ was around 30 MB with my entire STT app built in. Worse but IMO within the
 realm of reasonability. Time to first draw is pretty good - under a
 second according to the eyeball test.
 
-# hello world :3
-20 Mar 2025
+# hello world :3 {data-date="20 Mar 2025"}
 
 <video autoplay loop muted playsinline>
   <source src="https://yummers.dev/images/danser.webm" type="video/webm">
diff --git a/make_html b/make_html
index f36d616..fe42448 100755
--- a/make_html
+++ b/make_html
@@ -14,8 +14,6 @@ pandoc \
   --mathml \
   --lua-filter article-dates.lua \
   --template template.html \
-  --toc \
-  --toc-depth 1 \
   -t chunkedhtml \
   --split-level 1 \
   --chunk-template "%i.html" \
@@ -23,7 +21,5 @@ pandoc \
   "$MARKDOWN_IN"
 
 unzip -o "$OUTPUT_DIR/site.zip" -d /var/www/html/
-# Remove in-page hash fragments from TOC links on the landing page so links open at page top
-sed -E -i 's/(href="[^"#]+\.html)#[^"]+"/\1"/g' /var/www/html/index.html || true
 cp -r vr_assets /var/www/html/
 cp -r images /var/www/html/
diff --git a/template.html b/template.html
index 1bf6217..6e05cbc 100755
--- a/template.html
+++ b/template.html
@@ -139,7 +139,7 @@ $endif$
       }
     }
     /* AI blurb */
-    h1 + p::after {
+    .article h1 + p::after {
       content: "All prose on this website is written by a human.";
       display: block;
       margin-top: 1em;
@@ -156,7 +156,7 @@ $if(math)$
   $math$
 $endif$
 </head>
-<body>
+<body class="$if(top)$article$else$home$endif$">
 $for(include-before)$
 $include-before$
 $endfor$
@@ -180,19 +180,44 @@ $if(title)$
   $endif$
   </header>
 $endif$
-$if(toc)$
+$if(top)$
+$body$
+  <p><a href="/">back to main page</a></p>
+$else$
   <h1>articles</h1>
   <nav id="$idprefix$TOC" role="doc-toc">
-  $if(toc-title)$
-    <h2 id="$idprefix$toc-title">$toc-title$</h2>
-  $endif$
-  $table-of-contents$
+  $article-list$
   </nav>
-$endif$
-$body$
-$if(toc)$
-$else$
-  <p><a href="/">back to main page</a></p>
+  <h1>about</h1>
+  <p>
+  hello, my name is yum. i am a virtual person interested in realtime
+  graphics and math. this website is a collection of my stray thoughts that i
+  feel ought to be written down. i think of it as something slightly more
+  public than a diary.
+  </p>
+  <p>
+  all prose on this website is written by a human (me). i do use ai when
+  developing software. i don't disclose it. unless you see something in the
+  README saying that i *didn't* use AI, assume i did. the skilled reader should
+  be able to quickly assess quality regardless of how the code is made.
+  </p>
+  <p>
+  my open source code is hosted at
+  <a href="https://git.yummers.dev">git.yummers.dev</a>. it may be slow to load
+  (10-20 seconds). i doubt much of it will be of use to others, besides
+  HLSL_OKLAB and maybe modular_slang.
+  </p>
+  <p>
+  core beliefs:
+  <ol>
+    <li>information should be free;</li>
+    <li>human-caused climate change is real, significant, and solvable;</li>
+    <li>passive acceptance of cruelty is complicity;</li>
+    <li>trans rights are human rights;</li>
+    <li>the web is a vast sea made of individuals with feelings;</li>
+    <li>your actions matter.</li>
+  </ol>
+  </p>
 $endif$
 $for(include-after)$
 $include-after$