diff --git a/packages/lib-reactive-io/package.json b/packages/lib-reactive-io/package.json
index 3f43643e..9b9a882b 100644
--- a/packages/lib-reactive-io/package.json
+++ b/packages/lib-reactive-io/package.json
@@ -1,10 +1,9 @@
 {
   "name": "@dassie/lib-reactive-io",
-  "type": "module",
-  "version": "0.0.0",
-  "private": true,
+  "version": "0.0.1",
   "description": "IO abstraction layer for Dassie",
-  "main": "./src/index.ts",
+  "type": "module",
+  "sideEffects": false,
   "exports": {
     ".": {
       "node": "./src/node/index.ts",
@@ -17,11 +16,36 @@
       "import": "./src/browser/index.ts"
     }
   },
+  "publishConfig": {
+    "exports": {
+      ".": {
+        "types": "./dist/browser/index.d.ts",
+        "node": "./dist/node/index.js",
+        "import": "./dist/browser/index.js"
+      },
+      "./node": {
+        "types": "./dist/node/index.d.ts",
+        "import": "./dist/node/index.js"
+      },
+      "./browser": {
+        "types": "./dist/browser/index.d.ts",
+        "import": "./dist/browser/index.js"
+      }
+    }
+  },
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "build": "tsc && rollup -c",
     "lint": "eslint --color .",
     "typecheck": "tsc --pretty"
   },
+  "files": [
+    "dist/node/index.js",
+    "dist/node/index.js.map",
+    "dist/node/index.d.ts",
+    "dist/browser/index.js",
+    "dist/browser/index.js.map",
+    "dist/browser/index.d.ts"
+  ],
   "author": {
     "name": "Stefan Thomas",
     "email": "justmoon@members.fsf.org",
@@ -34,6 +58,7 @@
     "uint8array-extras": "^1.4.0"
   },
   "devDependencies": {
+    "@dassie/meta-rollup-config": "workspace:^",
     "@dassie/meta-tsconfig": "workspace:^",
     "@types/node": "^22.5.5"
   },
diff --git a/packages/lib-reactive-io/rollup.config.js b/packages/lib-reactive-io/rollup.config.js
new file mode 100644
index 00000000..af81264a
--- /dev/null
+++ b/packages/lib-reactive-io/rollup.config.js
@@ -0,0 +1,12 @@
+import { entrypoint } from "@dassie/meta-rollup-config"
+
+const config = [
+  ...entrypoint("browser/index", {
+    external: ["@dassie/lib-type-utils", "@dassie/lib-reactive"],
+  }),
+  ...entrypoint("node/index", {
+    external: ["@dassie/lib-type-utils", "@dassie/lib-reactive"],
+  }),
+]
+
+export default config
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 05ad27fc..908f96bb 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -824,6 +824,9 @@ importers:
         specifier: ^1.4.0
         version: 1.4.0
     devDependencies:
+      '@dassie/meta-rollup-config':
+        specifier: workspace:^
+        version: link:../meta-rollup-config
       '@dassie/meta-tsconfig':
         specifier: workspace:^
         version: link:../meta-tsconfig