commit a1072f203d33597157b0763bdac8addafee92386
Author: Smaug123 <patrick+github@patrickstevens.co.uk>
Date:   Sun Sep 10 21:21:51 2023 +0100

    Initial commit of new flow

diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
new file mode 100644
index 0000000..14045b8
--- /dev/null
+++ b/.devcontainer/Dockerfile
@@ -0,0 +1,9 @@
+FROM pandoc/latex:2.14.0.1
+
+RUN apk add --no-cache git=2.26.3-r0 texlive=20190410-r13 && \
+    tlmgr update --self && \
+    tlmgr install tikz-cd && \
+    tlmgr install mdframed && \
+    # Dependencies of mdframed \
+    tlmgr install zref && \
+    tlmgr install needspace
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000..9b64cde
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,7 @@
+{
+  "build": { "dockerfile": "Dockerfile" },
+  "extensions": ["james-yu.latex-workshop", "vscodevim.vim", "timonwong.shellcheck"],
+  "settings": {
+
+  }
+}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..571df56
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,30 @@
+/result
+public/
+.ionide/
+hugo/static/images/galleries
+images/**/*-thumb.jpg
+*.log
+*.fls
+*.fdb_latexmk
+*.out
+*.aux
+*.synctex.gz
+*.swp
+
+pdfs/*.pdf
+
+hugo/static/misc/AdjointFunctorTheorems
+hugo/static/misc/FriedbergMuchnik/
+hugo/static/misc/ModularMachines/*.tex
+hugo/static/misc/ModularMachines/*.pdf
+hugo/static/misc/MonadicityTheorems/
+hugo/static/misc/MultiplicativeDetProof/
+hugo/static/misc/NonstandardAnalysis/
+hugo/static/misc/ParametricBoundedLoeb2016/
+hugo/static/misc/RepresentableFunctors/
+hugo/static/misc/Tennenbaum/
+hugo/static/misc/TokyoEntrance2016/
+
+.DS_Store
+
+.idea/
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..fd015aa
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "images"]
+	path = images
+	url = ../static-site-images
+[submodule "extra-content"]
+	path = extra-content
+	url = ../extra-site-content
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..b1ee325
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+
+rm -rf public
+mkdir public || exit 1
+
+DOCKERUSER="$(id -u):$(id -g)"
+export DOCKERUSER
+IMAGES="$(pwd)/images"
+export IMAGES
+PDFS="$(pwd)/pdfs"
+export PDFS
+HUGO="$(pwd)/hugo"
+export HUGO
+OUTPUT="$(pwd)/public"
+export OUTPUT
+
+docker build docker/hadolint -t build-hadolint || exit 1
+docker run --user "$(id -u):$(id -g)" -v "$(pwd):/work" build-hadolint sh -c "/build.sh" || exit 1
+
+docker build docker/shellcheck -t build-shellcheck || exit 1
+docker run --user "$(id -u):$(id -g)" -v "$(pwd):/work" build-shellcheck sh -c "/build.sh /work" || exit 1
+
+docker build docker/latex -t build-latex || exit 1
+docker build docker/pictures -t build-pictures || exit 1
+docker build docker/hugo -t build-hugo || exit 1
+
+echo Building thumbnails.
+docker run --user "$(id -u):$(id -g)" -v "$IMAGES:/output" build-pictures sh -c "/build.sh /output" || exit 1
+while read -r d
+do
+    mkdir -p "$HUGO/$d" || exit 1
+    DESIRED_LOCATION=$(basename "$d")
+    DEST=$(dirname "$d")
+    cp -r "$IMAGES/$DESIRED_LOCATION" "$HUGO/$DEST"
+done < "$IMAGES/image-targets.txt"
+
+echo Building LaTeX.
+docker run --user "$(id -u):$(id -g)" -v "$PDFS:/inputs" build-latex sh -c "/build.sh /inputs" || exit 1
+while read -r texfile
+do
+    DIR="$HUGO"/$(dirname "$texfile")
+    TEXFILE_BASE=$(basename "$texfile")
+    PDFFILE=$(basename "$texfile" .tex).pdf
+    mkdir -p "$DIR"
+    cp "$PDFS/$TEXFILE_BASE" "$DIR/"
+    cp "$PDFS/$PDFFILE" "$DIR/"
+done < "$PDFS/pdf-targets.txt"
+
+echo Building site.
+docker run --user "$(id -u):$(id -g)" -v "$HUGO:/hugo" -v "$OUTPUT:/output" build-hugo sh -c "/build.sh /hugo /output" || exit 1
+
+echo Done.
diff --git a/build/all.sh b/build/all.sh
new file mode 100755
index 0000000..fd2a616
--- /dev/null
+++ b/build/all.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+
+pdfs=$1
+images=$2
+ankiDecks=$3
+buildHugo=$4
+katex=$5
+extraContent=$6
+
+echo "Linking PDFs: $PDF_FOLDER/pdf-targets.txt"
+while IFS= read -r texfile || [[ -n "$r" ]]
+do
+    DIR=$(dirname "$texfile")
+    TEXFILE_BASE=$(basename "$texfile")
+    if [ -z "${TEXFILE_BASE}" ]; then
+      echo "Skipping empty line"
+    else
+      PDFFILE=$(basename "$texfile" .tex).pdf
+      mkdir -p "$DIR"
+      echo "$TEXFILE_BASE"
+      echo "$PDFFILE"
+      cp "${pdfs}/$TEXFILE_BASE" "$texfile"
+      cp "${pdfs}/$PDFFILE" "$DIR/"
+    fi
+done < "${pdfs}/pdf-targets.txt"
+
+echo "Linking thumbnails."
+while IFS= read -r d || [[ -n "$d" ]]
+do
+    if [ -n "${d}" ]; then
+      DIR=$(dirname "$d")
+      mkdir -p "$DIR" || exit 1
+      DESIRED_LOCATION=$(basename "$d")
+      echo "$d -> $DESIRED_LOCATION"
+      cp -r "${images}/$DESIRED_LOCATION" "$d"
+    fi
+done < "${images}/image-targets.txt"
+
+echo "Linking Anki decks."
+mkdir static/AnkiDecks && cp -R "${ankiDecks}/." static/AnkiDecks
+
+echo "Building site."
+
+mkdir -p "themes/anatole/assets"
+cp -r "$katex"/dist/fonts themes/anatole/assets/fonts
+cp -r "$katex/dist/contrib" themes/anatole/assets/contrib
+cp "$katex"/dist/*.js themes/anatole/assets/
+cp "$katex"/dist/*.css themes/anatole/assets/
+
+while IFS= read -r file_to_copy
+do
+    echo "$file_to_copy"
+    sourcefile=$(echo "$file_to_copy" | cut -d ' ' -f 1)
+    destfile=$(echo "$file_to_copy" | cut -d ' ' -f 2-)
+    cp "$extraContent/$sourcefile" "$destfile"
+done < "$extraContent/map.txt"
+
+/bin/sh "${buildHugo}/run.sh" . ./output
diff --git a/build/anki.sh b/build/anki.sh
new file mode 100755
index 0000000..74a4d4b
--- /dev/null
+++ b/build/anki.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+input_folder=$1
+anki=$2
+out=$3
+
+mkdir -p "$out"
+
+for item in "$input_folder"/*.json; do
+  output_file=$(echo "$item" | sed 's/\.json$/.apkg/')
+  # Invoke the binary command on the item
+  echo "$item"
+  echo "$out/$output_file"
+  "$anki" render --output "$out/$output_file" "$item"
+done
diff --git a/docker/hadolint/Dockerfile b/docker/hadolint/Dockerfile
new file mode 100644
index 0000000..3d8dd70
--- /dev/null
+++ b/docker/hadolint/Dockerfile
@@ -0,0 +1,9 @@
+FROM hadolint/hadolint:v2.10.0-beta-alpine
+COPY "build.sh" "/build.sh"
+
+RUN chmod +x /build.sh && \
+	addgroup -S hugo && adduser -S hugo -G hugo
+
+USER hugo
+
+ENTRYPOINT []
diff --git a/docker/hadolint/build.sh b/docker/hadolint/build.sh
new file mode 100755
index 0000000..e8f0a56
--- /dev/null
+++ b/docker/hadolint/build.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+find /work -type f -name 'Dockerfile' -print0 | xargs -0 -n1 hadolint
\ No newline at end of file
diff --git a/docker/html/Dockerfile b/docker/html/Dockerfile
new file mode 100644
index 0000000..51f36ab
--- /dev/null
+++ b/docker/html/Dockerfile
@@ -0,0 +1,19 @@
+FROM debian:stable-20211011-slim AS builder
+
+ADD https://github.com/validator/validator/releases/download/20.6.30/vnu.linux.zip .
+ADD https://github.com/validator/validator/releases/download/20.6.30/vnu.linux.zip.sha1 .
+COPY "build.sh" "/build.sh"
+
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+RUN apt-get update && apt-get install --no-install-recommends -y \
+       unzip=6.0-26 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    && echo "$(cat vnu.linux.zip.sha1) vnu.linux.zip" | sha1sum -c - \
+    && unzip ./vnu.linux.zip \
+    && rm ./vnu.linux.zip* \
+    && apt-get purge -y --auto-remove unzip \
+    && chmod +x /build.sh \
+	&& addgroup --gid 1000 hugo && adduser --gid 1000 hugo
+
+USER hugo
diff --git a/docker/html/build.sh b/docker/html/build.sh
new file mode 100755
index 0000000..b5e39f5
--- /dev/null
+++ b/docker/html/build.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+find result/ -type f -name '*.html' -print0 | xargs -0 -n1 /nix/store/p7adf8zk6akdbjr60vb98fajxp5aaa7i-html-tidy-5.8.0/bin/tidy 2>/dev/null
diff --git a/docker/hugo/Dockerfile b/docker/hugo/Dockerfile
new file mode 100644
index 0000000..48ce02f
--- /dev/null
+++ b/docker/hugo/Dockerfile
@@ -0,0 +1,12 @@
+FROM alpine:3.15.4
+RUN apk add --no-cache hugo=0.89.4-r2 git-2.34.8-r0
+COPY "build.sh" "/build.sh"
+
+RUN chmod +x /build.sh && \
+	mkdir /sentinels && \
+	chmod a+rwx /sentinels && \
+	addgroup -S hugo && adduser -S hugo -G hugo
+
+USER hugo
+
+ENTRYPOINT []
diff --git a/docker/hugo/build.sh b/docker/hugo/build.sh
new file mode 100755
index 0000000..6ce5c2d
--- /dev/null
+++ b/docker/hugo/build.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+SOURCE_DIR=$(readlink -f "$1")
+OUTPUT_DIR=$(readlink -f "$2")
+
+rm -rf "${OUTPUT_DIR:?}/*" && \
+hugo --minify --source "$SOURCE_DIR" --destination "$OUTPUT_DIR"
diff --git a/docker/latex/Dockerfile b/docker/latex/Dockerfile
new file mode 100644
index 0000000..db90bcb
--- /dev/null
+++ b/docker/latex/Dockerfile
@@ -0,0 +1,28 @@
+FROM pandoc/latex:2.18.0.0 AS basic
+
+RUN apk add --no-cache texlive=20210325-r4
+
+# texlive is huuuge and we don't want to keep re-downloading it; don't warn on the repeated RUN command
+# hadolint ignore=DL3059
+RUN tlmgr update --self && \
+    tlmgr install tikz-cd && \
+    tlmgr install mdframed && \
+    tlmgr install mathtools && \
+    # Dependencies of mdframed \
+    tlmgr install zref && \
+    tlmgr install needspace
+
+FROM basic AS build
+
+COPY "build.sh" "/build.sh"
+
+RUN mkdir /sentinels && \
+    chmod a+rwx /sentinels && \
+    chmod +x /build.sh && \
+    addgroup -S pdftex && adduser -S pdftex -G pdftex
+
+USER pdftex
+
+WORKDIR /home/pdftex
+
+ENTRYPOINT []
diff --git a/docker/latex/build.sh b/docker/latex/build.sh
new file mode 100755
index 0000000..f39ae38
--- /dev/null
+++ b/docker/latex/build.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+USER_DIR=$(readlink -f "$1")
+WORKDIR=$(mktemp -d -p "$USER_DIR")
+
+cd "$WORKDIR" || exit 1
+
+SHELL="/bin/sh"
+
+# Build PDFs from LaTeX. Do the build twice to sort out any bookmarks.
+# For some reason, using $0 instead of `sh` makes Hadolint warn about the single-quotes not expanding expressions
+# shellcheck disable=SC2016
+find "$USER_DIR" -type f -name '*.tex' -exec "$SHELL" -c '
+  if [ -f "${@%.*}.pdf" ]; then exit 0; fi;
+  output=$(dirname "$@")/$(basename "$@" .tex).pdf
+  echo "$@ - $output"
+  HOME=$(pwd) SOURCE_DATE_EPOCH=1622905527 pdflatex "$@" || exit 1
+  HOME=$(pwd) SOURCE_DATE_EPOCH=1622905527 pdflatex "$@" || exit 1
+  mv "$(basename "$output")" "$output" || exit 1
+' -- {} \; || exit 1
+
+cd "$USER_DIR" || exit 1
+rm -r "$WORKDIR"
diff --git a/docker/load/Dockerfile b/docker/load/Dockerfile
new file mode 100644
index 0000000..743b47a
--- /dev/null
+++ b/docker/load/Dockerfile
@@ -0,0 +1,13 @@
+FROM alpine:3.13.5
+
+COPY "build.sh" "/build.sh"
+RUN chmod +x /build.sh && \
+    mkdir /sentinels && \
+    chmod a+rwx /sentinels && \
+    addgroup -S load && adduser -S load -G load && \
+    mkdir /output && \
+    chown load /output
+
+USER load
+
+ENTRYPOINT []
diff --git a/docker/load/build.sh b/docker/load/build.sh
new file mode 100755
index 0000000..b522023
--- /dev/null
+++ b/docker/load/build.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+rm -f /sentinels/load.txt
+
+rm -rf -- /output/*
+cp -Rf /git/. /output || exit 1
+
+chmod -R a+rw /output || exit 1
+
+touch /sentinels/load.txt
\ No newline at end of file
diff --git a/docker/pictures/Dockerfile b/docker/pictures/Dockerfile
new file mode 100644
index 0000000..d8eed15
--- /dev/null
+++ b/docker/pictures/Dockerfile
@@ -0,0 +1,14 @@
+FROM alpine:3.15.4
+RUN apk add --no-cache imagemagick=7.1.0.16-r0
+
+COPY "build.sh" "/build.sh"
+
+RUN chmod +x /build.sh && \
+	mkdir /sentinels && \
+	chmod a+rwx /sentinels && \
+	addgroup -S pictures && adduser -S pictures -G pictures
+
+USER pictures
+WORKDIR /home/pictures
+
+ENTRYPOINT []
diff --git a/docker/pictures/build.sh b/docker/pictures/build.sh
new file mode 100755
index 0000000..23b5250
--- /dev/null
+++ b/docker/pictures/build.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+TO_SCAN="$1"
+
+SHELL="/bin/sh"
+
+# For some reason, using $0 instead of `sh` makes Shellcheck warn about the single-quotes not expanding expressions
+# shellcheck disable=SC2016
+find "$TO_SCAN" -type f ! -name '*-thumb.jpg' -name '*.jpg' -exec "$SHELL" -c '
+  if [ -f "${@%.*}-thumb.jpg" ]; then exit 0; fi;
+  echo "$@"
+  convert "$@" -thumbnail 100x100^ -gravity center -extent 100x100 "${1%.*}-thumb.jpg"
+' -- {} \; || exit 1
diff --git a/docker/reconcile/Dockerfile b/docker/reconcile/Dockerfile
new file mode 100644
index 0000000..3066fee
--- /dev/null
+++ b/docker/reconcile/Dockerfile
@@ -0,0 +1,9 @@
+FROM alpine:3.13.5
+
+COPY "build.sh" "/build.sh"
+
+RUN chmod +x /build.sh && \
+	mkdir /sentinels && \
+	chmod a+rwx /sentinels
+
+ENTRYPOINT []
diff --git a/docker/shellcheck/Dockerfile b/docker/shellcheck/Dockerfile
new file mode 100644
index 0000000..c5ca9ce
--- /dev/null
+++ b/docker/shellcheck/Dockerfile
@@ -0,0 +1,9 @@
+FROM koalaman/shellcheck-alpine:v0.8.0
+COPY "build.sh" "/build.sh"
+
+RUN chmod +x /build.sh && \
+	addgroup -S shellcheck && adduser -S shellcheck -G shellcheck
+
+USER shellcheck
+
+ENTRYPOINT []
diff --git a/docker/shellcheck/build.sh b/docker/shellcheck/build.sh
new file mode 100755
index 0000000..be60268
--- /dev/null
+++ b/docker/shellcheck/build.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+find "$1" -type f -name '*.*sh' -print0 | xargs -0 -n1 shellcheck
diff --git a/external-links.txt b/external-links.txt
new file mode 100644
index 0000000..be4c0cb
--- /dev/null
+++ b/external-links.txt
@@ -0,0 +1,9 @@
+https://www.patrickstevens.co.uk/slightly-silly-sylow-pseudo-sonnets/
+https://www.patrickstevens.co.uk/misc/YonedaWithoutTears/YonedaWithoutTears.pdf
+https://www.patrickstevens.co.uk/misc/ModularMachines/EmbedMMIntoTuringMachine.pdf
+https://www.patrickstevens.co.uk/posts/2021-10-19-crates/
+https://www.patrickstevens.co.uk/posts/2016-05-25-finitistic-reducibility/
+https://www.patrickstevens.co.uk/posts/2016-04-13-independence-of-choice/
+https://www.patrickstevens.co.uk/posts/2016-04-08-another-monty-hall-explanation/
+https://www.patrickstevens.co.uk/misc/AdjointFunctorTheorems/AdjointFunctorTheorems.pdf
+https://www.patrickstevens.co.uk/posts/2021-02-20-in-praise-of-dry-run/
diff --git a/extra-content b/extra-content
new file mode 160000
index 0000000..62e61fa
--- /dev/null
+++ b/extra-content
@@ -0,0 +1 @@
+Subproject commit 62e61fa89e83d76ab705230591136258e657a156
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..54c0809
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,129 @@
+{
+  "nodes": {
+    "anki-compiler": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1694219801,
+        "narHash": "sha256-8KFSy+R0nwUeZ3U2WYvRRjEYEk8iLXwWM9onvz5pixE=",
+        "owner": "Smaug123",
+        "repo": "anki-dotnet",
+        "rev": "8d1904d5cea06c8c20f5712ba865ace2d61b6255",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Smaug123",
+        "repo": "anki-dotnet",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1692799911,
+        "narHash": "sha256-3eihraek4qL744EvQXsK1Ha6C3CR7nnT8X2qWap4RNk=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "f9e7cf818399d17d347f847525c5a5a8032e4e44",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1692799911,
+        "narHash": "sha256-3eihraek4qL744EvQXsK1Ha6C3CR7nnT8X2qWap4RNk=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "f9e7cf818399d17d347f847525c5a5a8032e4e44",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1694021185,
+        "narHash": "sha256-v5Ie83yfsiQgp4GDRZFIsbkctEynfOdNOi67vBH12XM=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "3e233330d9f88f78c75c2a164a50807e44245007",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1688392541,
+        "narHash": "sha256-lHrKvEkCPTUO+7tPfjIcb7Trk6k31rz18vkyqmkeJfY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "ea4c80b39be4c09702b0cb3b42eab59e2ba4f24b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "anki-compiler": "anki-compiler",
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_2"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..cd825cf
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,200 @@
+{
+  description = "Static site builder for patrickstevens.co.uk";
+
+  inputs = {
+    flake-utils.url = github:numtide/flake-utils;
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.11";
+    anki-compiler.url = "github:Smaug123/anki-dotnet";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    anki-compiler,
+  }:
+    flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = nixpkgs.legacyPackages.${system};
+    in let
+      texlive = pkgs.texlive.combine {
+        inherit (pkgs.texlive) scheme-medium mdframed etoolbox zref needspace tikz-cd;
+      };
+    in rec {
+      packages = flake-utils.lib.flattenTree {
+        gitAndTools = pkgs.gitAndTools;
+      };
+      defaultPackage = let
+        createShellScript = name: contents:
+          pkgs.stdenv.mkDerivation {
+            __contentAddressed = true;
+            pname = name;
+            version = "0.1.0";
+            src = contents;
+
+            buildInputs = [
+              pkgs.shellcheck
+            ];
+
+            phases = ["configurePhase" "buildPhase" "installPhase"];
+
+            configurePhase = ''
+              ${pkgs.shellcheck}/bin/shellcheck "${contents}"
+            '';
+
+            buildPhase = ''
+              cp "${contents}" run.sh
+              patchShebangs run.sh
+              sed -i 's_"/bin/sh"_"${pkgs.bash}/bin/sh"_' run.sh
+            '';
+
+            installPhase = ''
+              mkdir -p $out
+              mv run.sh $out/run.sh
+            '';
+          };
+      in let
+        buildLatex = createShellScript "latex" ./docker/latex/build.sh;
+        buildPictures = createShellScript "pictures" ./docker/pictures/build.sh;
+        buildHugo = createShellScript "hugo" ./docker/hugo/build.sh;
+        buildAnki = createShellScript "anki" ./build/anki.sh;
+        buildEverything = createShellScript "all" ./build/all.sh;
+      in let
+        katex = pkgs.stdenv.mkDerivation {
+          pname = "katex";
+          version = "0.1.0";
+          src = pkgs.fetchFromGitHub {
+            owner = "KaTeX";
+            repo = "KateX";
+            rev = "4f1d9166749ca4bd669381b84b45589f1500a476";
+            sha256 = "sha256-hDHo7JQAo+fGxQvY5OtXlfh+e6PjlVIQPTyCa3Fjg0Y=";
+          };
+
+          buildInputs = [pkgs.nodejs pkgs.yarn];
+
+          buildPhase = ''
+            export HOME=$(mktemp -d)
+            yarn --immutable
+            yarn build
+            find . -type f -name "katex.min.*"
+          '';
+
+          installPhase = ''
+            mkdir -p "$out/fonts"
+            cp ./fonts/* "$out/fonts"
+            cp -r ./dist "$out/dist"
+          '';
+        };
+      in let
+        pdfs = pkgs.stdenv.mkDerivation {
+          __contentAddressed = true;
+          pname = "patrickstevens.co.uk-latex";
+          version = "0.1.2";
+          src = pkgs.fetchFromGitHub {
+            owner = "Smaug123";
+            repo = "static-site-pdfs";
+            rev = "d8cf76c2f1f669e177cff5217f9ebbf763070d71";
+            sha256 = "sha256-BH8EoVP4jtqisjIuayDKxXrvjzyNrJJP/OJf6rH0zgE=";
+          };
+          buildInputs = [
+            texlive
+            buildLatex
+          ];
+
+          buildPhase = ''
+            ${pkgs.bash}/bin/sh ${buildLatex}/run.sh .
+          '';
+
+          installPhase = ''
+            mkdir -p $out
+            cp ./* $out
+          '';
+        };
+      in let
+        images = pkgs.stdenv.mkDerivation {
+          __contentAddressed = true;
+          pname = "patrickstevens.co.uk-images";
+          version = "0.1.0";
+          src = ./images;
+          buildInputs = [
+            pkgs.imagemagick
+            buildPictures
+          ];
+
+          buildPhase = ''
+            ${pkgs.bash}/bin/sh ${buildPictures}/run.sh .
+          '';
+
+          installPhase = ''
+            ls -la .
+            mkdir -p $out
+            mv ./* $out
+          '';
+        };
+      in let
+        extraContent = pkgs.stdenv.mkDerivation {
+          __contentAddressed = true;
+          pname = "patrickstevens.co.uk-extraContent";
+          version = "0.1.0";
+          src = ./extra-content;
+          buildInputs = [];
+          installPhase = ''
+            mkdir -p $out
+            cp -r ./. $out
+          '';
+        };
+      in let
+        ankiDecks = pkgs.stdenv.mkDerivation {
+          __contentAddressed = true;
+          pname = "patrickstevens.co.uk-anki";
+          version = "0.2.0";
+          src = pkgs.fetchFromGitHub {
+            owner = "Smaug123";
+            repo = "anki-decks";
+            rev = "589a52858d5dca419ad8866946b7418f30b36eff";
+            sha256 = "sha256-tc3Twev82WVFbHbEgLVwgcQnPaEYGAUHqw8lpj1Kuqk=";
+          };
+          buildInputs = [];
+          installPhase = ''
+            pwd
+            ${./build/anki.sh} . "${anki-compiler.packages.${system}.default}/bin/AnkiStatic" "$out"
+          '';
+        };
+      in
+        pkgs.stdenv.mkDerivation {
+          __contentAddressed = true;
+          pname = "patrickstevens.co.uk";
+          version = "0.1.0";
+
+          src = pkgs.fetchFromGitHub {
+            owner = "Smaug123";
+            repo = "static-site-content";
+            rev = "67c4f084fc3425e86c1f98e3b0e5fa1b8049296d";
+            sha256 = "sha256-fOhvSnah74ZLYV130HOYnVduw5qpK32GikDdC6u/4gA=";
+          };
+
+          buildInputs = [
+            pkgs.hugo
+            buildHugo
+            images
+            pdfs
+            ankiDecks
+            katex
+            extraContent
+            pkgs.html-tidy
+          ];
+
+          buildPhase = ''
+            ${./build/all.sh} "${pdfs}" "${images}" "${ankiDecks}" "${buildHugo}" "${katex}" "${extraContent}"
+          '';
+
+          checkPhase = ''
+            echo "Linting HTML."
+            ${pkgs.html-tidy}/bin/tidy
+          '';
+
+          installPhase = ''
+            mv output $out
+          '';
+        };
+    });
+}
diff --git a/images b/images
new file mode 160000
index 0000000..c0bfc30
--- /dev/null
+++ b/images
@@ -0,0 +1 @@
+Subproject commit c0bfc303ff5a0c89e43d1e1ea3cd988fd6bf5af1
diff --git a/lint.sh b/lint.sh
new file mode 100755
index 0000000..65e39dc
--- /dev/null
+++ b/lint.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+OUTPUT="$(pwd)/public"
+export OUTPUT
+
+docker build docker/html -t build-html || exit 1
+
+echo Validating HTML.
+docker run --user "$(id -u):$(id -g)" -v "$OUTPUT:/public" build-html sh -c "/build.sh" || exit 1