diff --git a/examples/package-stats/package.json b/examples/package-stats/package.json
index c1f488c9d6..6f6df41603 100644
--- a/examples/package-stats/package.json
+++ b/examples/package-stats/package.json
@@ -14,8 +14,8 @@
 		"typescript": "^5.5.3"
 	},
 	"dependencies": {
-		"@thi.ng/checks": "workspace:^",
 		"@thi.ng/dgraph": "workspace:^",
+		"@thi.ng/file-io": "workspace:^",
 		"@thi.ng/hiccup": "workspace:^",
 		"@thi.ng/hiccup-svg": "workspace:^",
 		"@thi.ng/math": "workspace:^",
@@ -32,10 +32,10 @@
 		"online": false,
 		"readme": [
 			"dgraph",
+			"file-io",
 			"hiccup",
 			"hiccup-svg",
-			"transducers",
-			"vectors"
+			"transducers"
 		],
 		"screenshot": "examples/package-stats.png"
 	}
diff --git a/examples/package-stats/src/dep-chart.ts b/examples/package-stats/src/dep-chart.ts
index b773131498..9ed5d41f9a 100644
--- a/examples/package-stats/src/dep-chart.ts
+++ b/examples/package-stats/src/dep-chart.ts
@@ -1,10 +1,9 @@
-import { exists } from "@thi.ng/checks";
 import { DGraph } from "@thi.ng/dgraph";
+import { files, readJSON, writeText } from "@thi.ng/file-io";
 import { serialize } from "@thi.ng/hiccup";
 import { group, text } from "@thi.ng/hiccup-svg";
 import {
 	comp,
-	filter,
 	map,
 	mapcat,
 	mapIndexed,
@@ -16,22 +15,13 @@ import {
 	transduce,
 	zip,
 } from "@thi.ng/transducers";
-import * as fs from "node:fs";
 import { barChart, labeledTickX, labeledTickY } from "./viz.js";
 
-const BASE_DIR = "../../packages/";
+const BASE_DIR = "../../packages";
 
 const packages: { id: string; v: string; deps: string[] }[] = transduce(
 	comp(
-		map((f) => BASE_DIR + f),
-		filter((f) => fs.statSync(f).isDirectory()),
-		map((f) => {
-			try {
-				return fs.readFileSync(f + "/package.json");
-			} catch (_) {}
-		}),
-		filter(exists),
-		map((p) => JSON.parse(p!.toString())),
+		map(readJSON),
 		map((p) => ({
 			id: p.name,
 			v: p.version,
@@ -39,7 +29,7 @@ const packages: { id: string; v: string; deps: string[] }[] = transduce(
 		}))
 	),
 	push(),
-	fs.readdirSync(BASE_DIR)
+	files(BASE_DIR, "package.json", 2)
 );
 
 const graph = transduce(
@@ -59,7 +49,7 @@ const maxDeps = transduce<any, number, number>(pluck(1), max(), packageDeps);
 
 const width = packages.length * 16;
 
-fs.writeFileSync(
+writeText(
 	`package-deps.svg`,
 	serialize([
 		barChart,
diff --git a/examples/package-stats/src/size-chart.ts b/examples/package-stats/src/size-chart.ts
index ca5222895e..8488b95175 100644
--- a/examples/package-stats/src/size-chart.ts
+++ b/examples/package-stats/src/size-chart.ts
@@ -1,3 +1,4 @@
+import { dirs, readJSON, writeJSON, writeText } from "@thi.ng/file-io";
 import { serialize } from "@thi.ng/hiccup";
 import { group, text } from "@thi.ng/hiccup-svg";
 import { defGetterUnsafe } from "@thi.ng/paths";
@@ -11,27 +12,29 @@ import {
 	push,
 	transduce,
 } from "@thi.ng/transducers";
-import { existsSync, readdirSync, readFileSync, writeFileSync } from "node:fs";
+import { existsSync } from "node:fs";
 import { barChart, labeledTickX, labeledTickY } from "./viz.js";
 
-const BASE_DIR = "../../packages/";
+const BASE_DIR = "../../packages";
 
 const IGNORE_PACKAGES = new Set(["hiccup-carbon-icons"]);
 
+const shortName = (x: string) => x.substring(x.lastIndexOf("/") + 1);
+
 const meta = transduce(
 	comp(
-		filter((x) => !IGNORE_PACKAGES.has(x)),
-		map((m: string) => [m, BASE_DIR + m + "/.meta/size.json"]),
+		filter((x) => !IGNORE_PACKAGES.has(shortName(x))),
+		map((m: string) => [shortName(m), m + "/.meta/size.json"]),
 		filter(([_, path]) => existsSync(path)),
-		map(([m, path]) => [m, JSON.parse(readFileSync(path).toString())])
+		map(([m, path]) => [m, readJSON(path)])
 	),
 	push(),
-	readdirSync(BASE_DIR)
+	dirs(BASE_DIR, "", 1)
 );
 
-writeFileSync(
-	`package-sizes-${new Date().toISOString().substring(0, 10)}.json`,
-	JSON.stringify(meta, null, 4)
+writeJSON(
+	`../../dev/package-sizes-${new Date().toISOString().substring(0, 10)}.json`,
+	meta
 );
 console.log(meta.length);
 
@@ -47,7 +50,7 @@ const fileSizeChart = (stats: any, modType: string, type: string) => {
 		stats
 	);
 
-	writeFileSync(
+	writeText(
 		`package-sizes-${modType}.svg`,
 		serialize([
 			barChart,
diff --git a/yarn.lock b/yarn.lock
index 2375e3e9ec..cd96af596b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1618,8 +1618,8 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@example/package-stats@workspace:examples/package-stats"
   dependencies:
-    "@thi.ng/checks": "workspace:^"
     "@thi.ng/dgraph": "workspace:^"
+    "@thi.ng/file-io": "workspace:^"
     "@thi.ng/hiccup": "workspace:^"
     "@thi.ng/hiccup-svg": "workspace:^"
     "@thi.ng/math": "workspace:^"
@@ -1720,6 +1720,7 @@ __metadata:
     "@thi.ng/color-palettes": "workspace:^"
     "@thi.ng/pixel": "workspace:^"
     "@thi.ng/pixel-dither": "workspace:^"
+    "@thi.ng/transducers": "workspace:^"
     typescript: "npm:^5.5.3"
     vite: "npm:^5.3.3"
   languageName: unknown