3 files changed, 186 insertions, 6 deletions
diff --git a/docs/src/components/hardware-list.tsx b/docs/src/components/hardware-list.tsx
new file mode 100644
index 0000000..ec7e8a1
--- /dev/null
+++ b/docs/src/components/hardware-list.tsx
@@ -0,0 +1,176 @@
+import React from "react";
+
+import {
+  Board,
+  HardwareMetadata,
+  Interconnect,
+  Shield,
+} from "../hardware-metadata";
+
+interface HardwareListProps {
+  items: HardwareMetadata[];
+}
+
+type ElementOrString = JSX.Element | string;
+
+function itemHasMultiple(item: HardwareMetadata) {
+  return (
+    (item.type == "board" || item.type == "shield") &&
+    (item.siblings?.length ?? 1) > 1
+  );
+}
+
+function itemIds(item: HardwareMetadata) {
+  if (item.type == "board" || item.type == "shield") {
+    let nodes = (item.siblings ?? [item.id])
+      .map<ElementOrString>((id) => <code key={id}>{id}</code>)
+      .reduce(
+        (prev, curr, index) => [...prev, index > 0 ? ", " : "", curr],
+        [] as ElementOrString[]
+      );
+    return <span key={item.id}>{nodes}</span>;
+  } else {
+    return <code key={item.id}>{item.id}</code>;
+  }
+}
+
+const TYPE_LABELS: Record<
+  HardwareMetadata["type"],
+  Record<"singular" | "plural", string>
+> = {
+  board: { plural: "Boards: ", singular: "Board: " },
+  shield: { singular: "Shield: ", plural: "Shields: " },
+  interconnect: { singular: "Interconnect: ", plural: "Interconnects: " },
+};
+
+function HardwareLineItem({ item }: { item: HardwareMetadata }) {
+  return (
+    <li>
+      <a href={item.url}>{item.name}</a> (
+      {TYPE_LABELS[item.type][itemHasMultiple(item) ? "plural" : "singular"]}{" "}
+      {itemIds(item)})
+    </li>
+  );
+}
+
+interface InterconnectDetails {
+  interconnect?: Interconnect;
+  boards: Board[];
+  shields: Shield[];
+}
+
+function mapInterconnect({
+  interconnect,
+  boards,
+  shields,
+}: InterconnectDetails) {
+  if (!interconnect) {
+    return null;
+  }
+
+  return (
+    <div key={interconnect.id}>
+      <h4>{interconnect.name} Keyboards</h4>
+      {interconnect.description && <p>{interconnect.description}</p>}
+      <h5>Boards</h5>
+      <ul>
+        {boards.map((s) => (
+          <HardwareLineItem key={s.id} item={s} />
+        ))}
+      </ul>
+      <h5>Shields</h5>
+      <ul>
+        {shields.map((s) => (
+          <HardwareLineItem key={s.id} item={s} />
+        ))}
+      </ul>
+    </div>
+  );
+}
+
+interface GroupedMetadata {
+  onboard: Board[];
+  interconnects: Record<string, InterconnectDetails>;
+}
+
+function groupedBoard(agg: GroupedMetadata, board: Board) {
+  if (board.features?.includes("keys")) {
+    agg.onboard.push(board);
+  } else if (board.exposes) {
+    board.exposes.forEach((element) => {
+      let ic = agg.interconnects[element] ?? {
+        boards: [],
+        shields: [],
+      };
+      ic.boards.push(board);
+      agg.interconnects[element] = ic;
+    });
+  } else {
+    console.error("Board without keys or interconnect");
+  }
+
+  return agg;
+}
+
+function groupedShield(agg: GroupedMetadata, shield: Shield) {
+  shield.requires.forEach((id) => {
+    let ic = agg.interconnects[id] ?? { boards: [], shields: [] };
+    ic.shields.push(shield);
+    agg.interconnects[id] = ic;
+  });
+
+  return agg;
+}
+
+function groupedInterconnect(agg: GroupedMetadata, item: Interconnect) {
+  let ic = agg.interconnects[item.id] ?? { boards: [], shields: [] };
+  ic.interconnect = item;
+  agg.interconnects[item.id] = ic;
+
+  return agg;
+}
+
+function HardwareList({ items }: HardwareListProps) {
+  let grouped = items.reduce<GroupedMetadata>(
+    (agg, hm) => {
+      switch (hm.type) {
+        case "board":
+          return groupedBoard(agg, hm);
+        case "shield":
+          return groupedShield(agg, hm);
+        case "interconnect":
+          return groupedInterconnect(agg, hm);
+      }
+    },
+    { onboard: [] as Board[], interconnects: {} }
+  );
+
+  return (
+    <>
+      <h2>Keyboards</h2>
+      <h3>Onboard Controller Boards</h3>
+      <p>
+        Keyboards with onboard controllers are single PCBs that contain all the
+        components of a keyboard, including the controller chip, switch
+        footprints, etc.
+      </p>
+      <ul>
+        {grouped["onboard"]
+          .sort((a, b) => a.name.localeCompare(b.name))
+          .map((s) => (
+            <HardwareLineItem key={s.id} item={s} />
+          ))}
+      </ul>
+      <h3>Composite Boards</h3>
+      <p>
+        Composite keyboards are composed of two main PCBs: a small controller
+        board with exposed pads, and a larger keyboard PCB (a shield, in ZMK
+        lingo) with switch footprints and location a where the controller is
+        added.
+      </p>
+      {Object.values(grouped.interconnects).map(mapInterconnect)}
+    </>
+  );
+}
+
+export default HardwareList;
diff --git a/docs/src/hardware-metadata-collection-plugin/index.js b/docs/src/hardware-metadata-collection-plugin/index.js
index cbea805..5f5660b 100644
--- a/docs/src/hardware-metadata-collection-plugin/index.js
+++ b/docs/src/hardware-metadata-collection-plugin/index.js
@@ -8,12 +8,16 @@ var PrebuildPlugin = require("prebuild-webpack-plugin");
 const fs = require("fs");
 const yaml = require("js-yaml");
 const glob = require("glob");
-const { compile, compileFromFile } = require('json-schema-to-typescript');
 
 function generateHardwareMetadataAggregate() {
   glob("../app/boards/**/*.zmk.yml", (error, files) => {
-    const aggregated = files.flatMap(f => yaml.safeLoadAll(fs.readFileSync(f, "utf8")));
-    fs.writeFileSync("src/data/hardware-metadata.json", JSON.stringify(aggregated));
+    const aggregated = files.flatMap((f) =>
+      yaml.safeLoadAll(fs.readFileSync(f, "utf8"))
+    );
+    fs.writeFileSync(
+      "src/data/hardware-metadata.json",
+      JSON.stringify(aggregated)
+    );
   });
 }
 
@@ -30,4 +34,4 @@ module.exports = function () {
       };
     },
   };
-};
-\ No newline at end of file
+};
diff --git a/docs/src/hardware-schema-typescript-plugin/index.js b/docs/src/hardware-schema-typescript-plugin/index.js
index 2ccbf19..728d501 100644
--- a/docs/src/hardware-schema-typescript-plugin/index.js
+++ b/docs/src/hardware-schema-typescript-plugin/index.js
@@ -6,7 +6,7 @@
 
 var PrebuildPlugin = require("prebuild-webpack-plugin");
 const fs = require("fs");
-const { compileFromFile } = require('json-schema-to-typescript');
+const { compileFromFile } = require("json-schema-to-typescript");
 
 async function generateHardwareMetadataTypescript() {
   const ts = await compileFromFile("../schema/hardware-metadata.schema.json");
@@ -26,4 +26,4 @@ module.exports = function () {
       };
     },
   };
-};
-\ No newline at end of file
+};