diff --git a/README.md b/README.md
index 4509ce9..a2fd047 100644
--- a/README.md
+++ b/README.md
@@ -26,16 +26,40 @@ And to make sure DNS is working:
     bun dev
     open localhost:3000
 
+## Production Dev
+
+Make sure you bundle the JS:
+
+    bun run bundle
+
+If you want to test (or run) production with DNS features, use `NO_DNS`:
+
+    env NO_DNS=1 NODE_ENV=production bun start
+
+You can also use the package commands:
+
+    # run without DNS
+    bun prod-nodns
+    # run normally
+    bun prod
+
 ## Commands
 
-Commands can return one of three types:
+Commands can return one of these types:
 
 - `string`
 - `{ error: string }`
 - `{ html: string }`
+- `{ text: string }`
 
 They can also `throw` to display an error.
 
+Additionally, you can return JS that gets immediately run in the browser using `script:`:
+
+- `{ html: string, script: string }`
+- `{ text: string, script: string }`
+- `{ script: string }`
+
 ## Fonts
 
 Use this to examine what's inside the C64 .woff2 font file in public/vendor:
@@ -60,7 +84,7 @@ https://wakamaifondue.com/
 - [ ] "project"-based rehaul
 - [ ] game/bin/www cartridges
 - [-] pico8-style games
-    - [x] init/update/draw 
+    - [x] init/update/draw
     - [x] simple drawing api
     - [x] gamepad support
     - [ ] sounds
diff --git a/package.json b/package.json
index bbf48c7..cecc1b2 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
     "dev": "env BUN_HOT=1 bun --hot src/server.tsx",
     "start": "bun src/server.tsx",
     "prod": "env NODE_ENV=production bun src/server.tsx",
+    "prod-nodns": "env NO_DNS=1 NODE_ENV=production bun src/server.tsx",
     "build": "./scripts/build.sh",
 
     "runner": "env NODE_ENV=production bun run src/runner.ts",
diff --git a/src/dns.ts b/src/dns.ts
index 1c1ee13..225ed9c 100644
--- a/src/dns.ts
+++ b/src/dns.ts
@@ -17,6 +17,7 @@ const host = hostRaw.toString().trim()
 let dnsInit = false
 
 export async function initDNS() {
+    if (process.env.NO_DNS) return
     if (process.env.NODE_ENV !== "production") return
     if (!await expectShellCmd("avahi-publish")) return
 
@@ -36,6 +37,7 @@ export async function initDNS() {
 }
 
 export function publishAppDNS(app: string) {
+    if (process.env.NO_DNS) return
     if (process.env.NODE_ENV !== "production") return
     if (!dnsInit) throw "publishAppDNS() must be called after initDNS()"