4 files changed, 131 insertions, 49 deletions
diff --git a/community/README.md b/community/README.md
index 3953c445..9f25c7a1 100644
--- a/community/README.md
+++ b/community/README.md
@@ -2,34 +2,10 @@
 
 # BQN community links
 
-<center>
-
-[Advent of Code](https://adventofcode.com/) 2021 is now running! Solutions are being published by:
-
-[Antti Keränen](https://github.com/Detegr/aoc2021) •
-[dzaima](https://github.com/dzaima/aoc/tree/master/2021/BQN) •
-[Raghu Ranganathan](https://github.com/razetime/AOC2021-BQN) •
-[Leah Neukirchen](https://github.com/leahneukirchen/adventofcode2021)+[blog](https://leahneukirchen.org/blog/archive/2021/12/counting-lanternfish-with-bqn-and-linear-algebra.html) •
-[frasiyav](https://github.com/frasiyav/AoC2021)
-
-Partial:
-[Hannu Hartikainen](https://github.com/dancek/bqn-advent2021) •
-[Andrey Popp](https://github.com/andreypopp/aoc2021) •
-[Alex Dikelsky](https://github.com/AlexDikelsky/puzzles/tree/main/advent_of_code/advent_2021) •
-[Caleb Quilley](https://gitlab.com/icen/aoc21) •
-[Johnny](https://github.com/JohnnyJayJay/adventofcode-21) •
-[Alastair Williams](https://github.com/alephno/aoc2021) •
-[Aren Windham](https://github.com/arwn/aoc2021) •
-[Olodus](https://github.com/Olodus/advent_of_code2021) •
-[Josh Holland](https://git.sr.ht/~jshholland/adventofcode/tree/master/item/2021/) •
-[Ben Dean](https://github.com/bddean/aoc-2021) •
-[Alexander Wood](https://github.com/knightzmc/advent-of-code-2021) •
-[Dimitri Lozeve](https://github.com/dlozeve/aoc2021)
-
-</center>
-
 This page gathers links to work by the community. To get in touch, please use our [chat forums](forums.md).
 
+[Advent of Code](https://adventofcode.com/) 2021 is complete: check out the [review and retrospective](aoc.md)!
+
 For code repositories using BQN, see:
 
 - Github repositories [tagged BQN](https://github.com/topics/bqn)
diff --git a/community/aoc.md b/community/aoc.md
new file mode 100644
index 00000000..b636668d
--- /dev/null
+++ b/community/aoc.md
@@ -0,0 +1,73 @@
+*View this file with results and syntax highlighting [here](https://mlochbaum.github.io/BQN/community/aoc.html).*
+
+# Advent of Code
+
+[Advent of Code 2021](https://adventofcode.com/2021) saw great participation by the BQN community, with a total of 225 solutions published by 22 programmers. They can be found in these repositories:
+
+<center>
+
+[Raghu Ranganathan](https://github.com/razetime/AOC2021-BQN) •
+[dzaima](https://github.com/dzaima/aoc/tree/master/2021/BQN) •
+[Hannu Hartikainen](https://github.com/dancek/bqn-advent2021) •
+[frasiyav](https://github.com/frasiyav/AoC2021) •
+[Leah Neukirchen](https://github.com/leahneukirchen/adventofcode2021) •
+[Antti Keränen](https://github.com/Detegr/aoc2021) •
+[Caleb Quilley](https://gitlab.com/icen/aoc21) •
+[Alex Dikelsky](https://github.com/AlexDikelsky/puzzles/tree/main/advent_of_code/advent_2021) •
+[Andrey Popp](https://github.com/andreypopp/aoc2021) •
+[Johnny](https://github.com/JohnnyJayJay/adventofcode-21) •
+[Ben Dean](https://github.com/bddean/aoc-2021) •
+[Alvin Voo](https://github.com/alvinvoo/aoc2021) •
+[Josh Holland](https://git.sr.ht/~jshholland/adventofcode/tree/master/item/2021) •
+[Alastair Williams](https://github.com/alephno/aoc2021/tree/main/BQN) •
+[Olodus](https://github.com/Olodus/advent_of_code2021) •
+[Aren Windham](https://github.com/arwn/aoc2021) •
+[Dimitri Lozeve](https://github.com/dlozeve/aoc2021) •
+[Alexander Wood](https://github.com/knightzmc/advent-of-code-2021) •
+[Mathias Magnusson](https://github.com/mathiasmagnusson/advent-of-code-21) •
+[m-lima](https://github.com/m-lima/advent-of-code-2021) •
+[Dunya Kirkali](https://github.com/dunyakirkali/aoc.bqn/tree/main/2021) •
+[Benjamin Applegate](https://github.com/Camto/Advent-of-Code-2021/tree/master/BQN)
+
+</center>
+
+In addition to these, Leah wrote two blog posts explaining her solutions for [day 6](https://leahneukirchen.org/blog/archive/2021/12/counting-lanternfish-with-bqn-and-linear-algebra.html) and [day 9](https://leahneukirchen.org/blog/archive/2021/12/surveying-lava-basins-with-bqn-and-fixpoints.html).
+
+The number of solutions for each of the 25 days is plotted below, along with totals from AoC's [stats page](https://adventofcode.com/2021/stats). The BQN solutions are scaled to be visible here: there are 6839 times more valid AoC submissions than published BQN solutions overall.
+
+<!--GEN
+aoc ← 212619‿177297‿155605‿100935‿88219‿88679‿83481‿74615‿68643‿61663‿53952‿47051‿47966‿48138‿37624‿30770‿30625‿21869‿14145‿20024‿22761‿18378‿12258‿9212‿12204
+bqn ← 19‿14‿18‿12‿13‿15‿15‿8‿12‿9‿9‿7‿9‿8‿8‿5‿7‿6‿4‿7‿6‿4‿2‿4‿4
+
+width ← 256
+pad   ← 40‿40
+pad1  ← 40‿10+pad
+
+pa ← At "class=Paren|stroke=currentColor"
+pc ← At "class=red|r=4"
+rc ← At "class=code|stroke-width=1|rx=6"
+gr ← "g" At "stroke-width=1|font-size=13px|text-anchor=end|fill=currentColor"
+Path ← "path" Elt ⊣∾"d"⋈⊢
+
+col ← "class"⊸⋈¨"red"‿"green"
+lab ← "Solutions in:"‿"Anything"‿"BQN"
+win ← ⌈´¨ pts ← <∘∾˘ xy ← ⍉> ((↕≠)⋈÷⟜(+´))¨ aoc‿bqn
+ar  ← ÷2
+dim ← width (⊣≍×) ar
+Scale ← ¬⌾(1⊸⊑) ÷⟜win
+line ← (/≠¨⊏xy) ⊔ FmtNum ⍉> dim×Scale pts
+((-pad1÷2)∾dim+pad1) SVG gr Enc ∾⥊¨ ⟨
+  <"rect" Elt rc∾(Pos-pad÷2)∾"width"‿"height"≍˘FmtNum dim+pad
+  ((col∾¨⊢)⌾(1⊸↓)(Pos(⊑dim)⊸⋈)¨18×0.5+↕3) "text"⊸Attr⊸Enc¨ lab
+  ("g" At "text-anchor=middle|opacity=0.8") Enc "text"⊸Attr⊸Enc˜´¨ ⟨
+    ⟨"day", "dy"‿"1em"∾Pos dim×0.5‿1⟩
+    ⟨"count", "transform"‿"rotate(-90)"∾"dy"‿"-0.35em"∾Pos ⌽dim×0‿¯0.5⟩
+  ⟩
+  pa⊸Path¨ ((0⊸≤∧≤⟜1)/·<∘∾˘("M "⊸∾˘"VH")∾¨·FmtNum dim(×∾˘⌽∘⊣)(=⌜˜↕2)⊸×) Scale 0
+  col ≍⟜"style"‿"fill:none"⊸Path⟜('M'⌾⊑∘∾·⥊ "L "∾¨⎉1⊢)¨ line
+⟩
+-->
+
+The BQN counts fall off much less than the average. Most likely this is because programmers who decide to try AoC in a crazy new language like BQN tend to be more committed to the task, but BQN also has to meet some minimum bar to enable these crazy people to continue.
+
+Just how okay is BQN? Further discussion to come.
diff --git a/docs/community/aoc.html b/docs/community/aoc.html
new file mode 100644
index 00000000..7c0c717f
--- /dev/null
+++ b/docs/community/aoc.html
@@ -0,0 +1,55 @@
+<head>
+  <link href="../favicon.ico" rel="shortcut icon" type="image/x-icon"/>
+  <link href="../style.css" rel="stylesheet"/>
+  <title>BQN: Advent of Code</title>
+</head>
+<div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">community</a></div>
+<h1 id="advent-of-code"><a class="header" href="#advent-of-code">Advent of Code</a></h1>
+<p><a href="https://adventofcode.com/2021">Advent of Code 2021</a> saw great participation by the BQN community, with a total of 225 solutions published by 22 programmers. They can be found in these repositories:</p>
+<center>
+
+<p><a href="https://github.com/razetime/AOC2021-BQN">Raghu Ranganathan</a> •
+<a href="https://github.com/dzaima/aoc/tree/master/2021/BQN">dzaima</a> •
+<a href="https://github.com/dancek/bqn-advent2021">Hannu Hartikainen</a> •
+<a href="https://github.com/frasiyav/AoC2021">frasiyav</a> •
+<a href="https://github.com/leahneukirchen/adventofcode2021">Leah Neukirchen</a> •
+<a href="https://github.com/Detegr/aoc2021">Antti Keränen</a> •
+<a href="https://gitlab.com/icen/aoc21">Caleb Quilley</a> •
+<a href="https://github.com/AlexDikelsky/puzzles/tree/main/advent_of_code/advent_2021">Alex Dikelsky</a> •
+<a href="https://github.com/andreypopp/aoc2021">Andrey Popp</a> •
+<a href="https://github.com/JohnnyJayJay/adventofcode-21">Johnny</a> •
+<a href="https://github.com/bddean/aoc-2021">Ben Dean</a> •
+<a href="https://github.com/alvinvoo/aoc2021">Alvin Voo</a> •
+<a href="https://git.sr.ht/~jshholland/adventofcode/tree/master/item/2021">Josh Holland</a> •
+<a href="https://github.com/alephno/aoc2021/tree/main/BQN">Alastair Williams</a> •
+<a href="https://github.com/Olodus/advent_of_code2021">Olodus</a> •
+<a href="https://github.com/arwn/aoc2021">Aren Windham</a> •
+<a href="https://github.com/dlozeve/aoc2021">Dimitri Lozeve</a> •
+<a href="https://github.com/knightzmc/advent-of-code-2021">Alexander Wood</a> •
+<a href="https://github.com/mathiasmagnusson/advent-of-code-21">Mathias Magnusson</a> •
+<a href="https://github.com/m-lima/advent-of-code-2021">m-lima</a> •
+<a href="https://github.com/dunyakirkali/aoc.bqn/tree/main/2021">Dunya Kirkali</a> •
+<a href="https://github.com/Camto/Advent-of-Code-2021/tree/master/BQN">Benjamin Applegate</a></p>
+</center>
+
+<p>In addition to these, Leah wrote two blog posts explaining her solutions for <a href="https://leahneukirchen.org/blog/archive/2021/12/counting-lanternfish-with-bqn-and-linear-algebra.html">day 6</a> and <a href="https://leahneukirchen.org/blog/archive/2021/12/surveying-lava-basins-with-bqn-and-fixpoints.html">day 9</a>.</p>
+<p>The number of solutions for each of the 25 days is plotted below, along with totals from AoC's <a href="https://adventofcode.com/2021/stats">stats page</a>. The BQN solutions are scaled to be visible here: there are 6839 times more valid AoC submissions than published BQN solutions overall.</p>
+<svg viewBox='-40 -25 336 178'>
+  <g stroke-width='1' font-size='13px' text-anchor='end' fill='currentColor'>
+    <rect class='code' stroke-width='1' rx='6' x='-20' y='-20' width='296' height='168'/>
+    <text x='256' y='9'>Solutions in:</text>
+    <text class='red' x='256' y='27'>Anything</text>
+    <text class='green' x='256' y='45'>BQN</text>
+    <g text-anchor='middle' opacity='0.8'>
+      <text dy='1em' x='128' y='128'>day</text>
+      <text transform='rotate(-90)' dy='-0.35em' x='-64' y='0'>count</text>
+    </g>
+    <path class='Paren' stroke='currentColor' d='M0 0V128'/>
+    <path class='Paren' stroke='currentColor' d='M0 128H256'/>
+    <path class='red' style='fill:none' d='M0 0L10.667 21.264L21.333 34.323L32 67.236L42.667 74.891L53.333 74.614L64 77.743L74.667 83.081L85.333 86.676L96 90.878L106.667 95.52L117.333 99.675L128 99.124L138.667 99.02L149.333 105.35L160 109.476L170.667 109.563L181.333 114.835L192 119.484L202.667 115.945L213.333 114.298L224 116.936L234.667 120.62L245.333 122.454L256 120.653'/>
+    <path class='green' style='fill:none' d='M0 49.776L10.667 70.361L21.333 53.893L32 78.595L42.667 74.478L53.333 66.244L64 66.244L74.667 95.063L85.333 78.595L96 90.946L106.667 90.946L117.333 99.18L128 90.946L138.667 95.063L149.333 95.063L160 107.415L170.667 99.18L181.333 103.298L192 111.532L202.667 99.18L213.333 103.298L224 111.532L234.667 119.766L245.333 111.532L256 111.532'/>
+  </g>
+</svg>
+
+<p>The BQN counts fall off much less than the average. Most likely this is because programmers who decide to try AoC in a crazy new language like BQN tend to be more committed to the task, but BQN also has to meet some minimum bar to enable these crazy people to continue.</p>
+<p>Just how okay is BQN? Further discussion to come.</p>
diff --git a/docs/community/index.html b/docs/community/index.html
index 92a62da1..64791fb3 100644
--- a/docs/community/index.html
+++ b/docs/community/index.html
@@ -5,30 +5,8 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a></div>
 <h1 id="bqn-community-links"><a class="header" href="#bqn-community-links">BQN community links</a></h1>
-<center>
-
-<p><a href="https://adventofcode.com/">Advent of Code</a> 2021 is now running! Solutions are being published by:</p>
-<p><a href="https://github.com/Detegr/aoc2021">Antti Keränen</a> •
-<a href="https://github.com/dzaima/aoc/tree/master/2021/BQN">dzaima</a> •
-<a href="https://github.com/razetime/AOC2021-BQN">Raghu Ranganathan</a> •
-<a href="https://github.com/leahneukirchen/adventofcode2021">Leah Neukirchen</a>+<a href="https://leahneukirchen.org/blog/archive/2021/12/counting-lanternfish-with-bqn-and-linear-algebra.html">blog</a> •
-<a href="https://github.com/frasiyav/AoC2021">frasiyav</a></p>
-<p>Partial:
-<a href="https://github.com/dancek/bqn-advent2021">Hannu Hartikainen</a> •
-<a href="https://github.com/andreypopp/aoc2021">Andrey Popp</a> •
-<a href="https://github.com/AlexDikelsky/puzzles/tree/main/advent_of_code/advent_2021">Alex Dikelsky</a> •
-<a href="https://gitlab.com/icen/aoc21">Caleb Quilley</a> •
-<a href="https://github.com/JohnnyJayJay/adventofcode-21">Johnny</a> •
-<a href="https://github.com/alephno/aoc2021">Alastair Williams</a> •
-<a href="https://github.com/arwn/aoc2021">Aren Windham</a> •
-<a href="https://github.com/Olodus/advent_of_code2021">Olodus</a> •
-<a href="https://git.sr.ht/~jshholland/adventofcode/tree/master/item/2021/">Josh Holland</a> •
-<a href="https://github.com/bddean/aoc-2021">Ben Dean</a> •
-<a href="https://github.com/knightzmc/advent-of-code-2021">Alexander Wood</a> •
-<a href="https://github.com/dlozeve/aoc2021">Dimitri Lozeve</a></p>
-</center>
-
 <p>This page gathers links to work by the community. To get in touch, please use our <a href="forums.html">chat forums</a>.</p>
+<p><a href="https://adventofcode.com/">Advent of Code</a> 2021 is complete: check out the <a href="aoc.html">review and retrospective</a>!</p>
 <p>For code repositories using BQN, see:</p>
 <ul>
 <li>Github repositories <a href="https://github.com/topics/bqn">tagged BQN</a></li>