diff --git a/DOCS.md b/DOCS.md
new file mode 100644
index 0000000..3417f1f
--- /dev/null
+++ b/DOCS.md
@@ -0,0 +1,4 @@
+TypeScript goodies for [Determinate Systems][detsys]' GitHub Actions projects.
+
+[detsys]: https://determinate.systems
+
diff --git a/tsdown.config.ts b/tsdown.config.ts
index 8c1b3a7..0cc8375 100644
--- a/tsdown.config.ts
+++ b/tsdown.config.ts
@@ -4,7 +4,7 @@ export default defineConfig({
   name: "detsys-ts",
   entry: ["src/index.ts"],
   format: ["esm"],
-  target: "node20",
+  target: "esnext",
   sourcemap: true,
   dts: {
     resolve: false,
diff --git a/typedoc.config.cjs b/typedoc.config.cjs
index 7382bf4..ffd3133 100644
--- a/typedoc.config.cjs
+++ b/typedoc.config.cjs
@@ -2,5 +2,6 @@
 module.exports = {
   entryPoints: ["./src/index.ts"],
   out: "docs",
+  readme: "./DOCS.md",
   tsconfig: "./tsconfig.typedoc.json",
 };