diff --git a/.docs/eleventy.config.mjs b/.docs/eleventy.config.mjs
index 7c04b4a..dae1b25 100644
--- a/.docs/eleventy.config.mjs
+++ b/.docs/eleventy.config.mjs
@@ -47,10 +47,10 @@ async function shortcode_image_url(src) {
 }
 
 async function shortcode_image_urlpass(src) {
-	let target_dir = `./_site/img`;
+	const target_dir = `./_site/img`;
 	if(!fs.existsSync(target_dir))
 		await fs.promises.mkdir(target_dir, { recursive: true });
-	let filename = path.basename(src);
+	const filename = path.basename(src);
 	// Generally speaking we optimise PNGs *very* well with oxipng/Zopfli,
 	// and the Image plugin doesn't respect this
 	await fs.promises.copyFile(src, path.join(target_dir, filename));
diff --git a/.docs/eslint.config.mjs b/.docs/eslint.config.mjs
index 64db309..57d6003 100644
--- a/.docs/eslint.config.mjs
+++ b/.docs/eslint.config.mjs
@@ -2,8 +2,9 @@ export default [
     {
         files: ["**/*.js", "**/*.cjs", "**/*.mjs"],
         rules: {
-            "prefer-const": "warn",
+			"prefer-const": "warn",
             "no-constant-binary-expression": "error"
-        }
+        },
+		ignores: ["**/_site/**"]
     }
 ];
diff --git a/.docs/img2brush/img2brush.js b/.docs/img2brush/img2brush.js
index 5a9f487..5f837ef 100644
--- a/.docs/img2brush/img2brush.js
+++ b/.docs/img2brush/img2brush.js
@@ -1,12 +1,12 @@
 window.addEventListener("load", () => {
-	let dropzone = document.querySelector("#dropzone");
+	const dropzone = document.querySelector("#dropzone");
 	dropzone.addEventListener("dragenter", handle_drag_enter);
 	dropzone.addEventListener("dragleave", handle_drag_leave);
 	dropzone.addEventListener("dragover", handle_drag_over);
 	dropzone.addEventListener("drop", handle_drop);
 	
 	document.querySelector("#brushimg-tsv").addEventListener("click", select_output);
-	let button_copy = document.querySelector("#brushimg-copy")
+	const button_copy = document.querySelector("#brushimg-copy")
 	button_copy.addEventListener("click", () => {
 		select_output();
 		button_copy.innerHTML = document.execCommand("copy") ? "Copied!" : "Failed to copy :-(";
@@ -31,14 +31,14 @@ function get_source_channel_offset() {
 }
 
 function select_output() {
-	let output = document.querySelector("#brushimg-tsv");
+	const output = document.querySelector("#brushimg-tsv");
 	
-	let selection = window.getSelection();
+	const selection = window.getSelection();
 	
 	if (selection.rangeCount > 0)
 		selection.removeAllRanges();
 
-	let range = document.createRange();
+	const range = document.createRange();
 	range.selectNode(output);
 	selection.addRange(range);
 }
@@ -59,13 +59,11 @@ function handle_drop(event) {
 	event.preventDefault();
 	event.target.classList.remove("dropzone-active");
 	
-	let image_file = null;
+	const image_file = event.dataTransfer.files[0];
 	
-	image_file = event.dataTransfer.files[0];
-	
-	let reader = new FileReader();
+	const reader = new FileReader();
 	reader.addEventListener("load", function(_event) {
-		let image = new Image();
+		const image = new Image();
 		image.src = reader.result;
 		image.addEventListener("load", () => handle_new_image(image));
 		
@@ -78,7 +76,7 @@ function handle_drop(event) {
 }
 
 function image2pixels(image) {
-	let canvas = document.createElement("canvas"),
+	const canvas = document.createElement("canvas"),
 		ctx = canvas.getContext("2d");
 	
 	canvas.width = image.width;
@@ -90,7 +88,7 @@ function image2pixels(image) {
 }
 
 function handle_new_image(image) {
-	let tsv = pixels2tsv(image2pixels(image));
+	const tsv = pixels2tsv(image2pixels(image));
 	document.querySelector("#brushimg-stats").value = `${image.width} x ${image.height} | ${image.width * image.height} pixels`;
 	document.querySelector("#brushimg-tsv").value = tsv;
 }
@@ -100,7 +98,7 @@ function pixels2tsv(pixels) {
 	console.info(`pixels2tsv: offset is ${offset}`);
 	let result = "";
 	for(let y = 0; y < pixels.height; y++) {
-		let row = [];
+		const row = [];
 		for(let x = 0; x < pixels.width; x++) {
 			// No need to rescale here - this is done automagically by WorldEditAdditions.
 			// r/b/g/alpha
diff --git a/.docs/lib/HTMLPicture.mjs b/.docs/lib/HTMLPicture.mjs
index 4590359..fd0f026 100644
--- a/.docs/lib/HTMLPicture.mjs
+++ b/.docs/lib/HTMLPicture.mjs
@@ -62,10 +62,10 @@ async function srcset(source_image, target_dir, urlpath, format = "__AUTO__", si
 	
 	debug(`SOURCE_SIZE`, source_size, `TARGET_FORMAT`, target_format);
 	
-	let setitems = await Promise.all(sizes.map(async (size) => {
-		let target_filename = `${source_parsed.name}_${size}.${target_format}`
+	const setitems = await Promise.all(sizes.map(async (size) => {
+		const target_filename = `${source_parsed.name}_${size}.${target_format}`
 			.replace(/%/, "pcent");
-		let target_current = path.join(
+		const target_current = path.join(
 			target_dir,
 			target_filename
 		);
diff --git a/.docs/lib/parse_sections.mjs b/.docs/lib/parse_sections.mjs
index 018c65f..fa324fa 100644
--- a/.docs/lib/parse_sections.mjs
+++ b/.docs/lib/parse_sections.mjs
@@ -32,7 +32,7 @@ function extract_title(line) {
 }
 
 function make_section(acc, cat_current, cats) {
-	let title = extract_title(acc[0]);
+	const title = extract_title(acc[0]);
 	return {
 		category: cat_current,
 		category_colour: cats.get(cat_current),
@@ -62,14 +62,14 @@ export default function parse_sections(source) {
 	const result = [];
 	let acc = [];
 	let cat_current = null;
-	for(let line of lines) {
+	for(const line of lines) {
 		
 		if(line.startsWith(`#`)) {
-			let heading_level = line.match(/^#+/)[0].length;
+			const heading_level = line.match(/^#+/)[0].length;
 			
 			// 1: Deal with the previous section
 			if(acc.length > 0) {
-				let heading_level_prev = acc[0].match(/^#+/)[0].length;
+				const heading_level_prev = acc[0].match(/^#+/)[0].length;
 				if(heading_level_prev === 3 && acc.length > 0 && heading_level <= 3) {
 					result.push(make_section(acc, cat_current, cats));
 				}