diff --git a/.env.example b/.env.example
index 7f682ca8..9b0ba49a 100644
--- a/.env.example
+++ b/.env.example
@@ -1,6 +1,6 @@
 NUXT_PUBLIC_TRANSLATE_API=
 NUXT_PUBLIC_DEFAULT_SERVER=
-SINGLE_INSTANCE_SERVER=
+NUXT_PUBLIC_SINGLE_INSTANCE=
 NUXT_PUBLIC_PRIVACY_POLICY_URL=
 
 # Production only
diff --git a/composables/sign-in.ts b/composables/sign-in.ts
index 139d792f..437d8fd7 100644
--- a/composables/sign-in.ts
+++ b/composables/sign-in.ts
@@ -1,7 +1,7 @@
 import type { Ref } from 'vue'
 
 export const useSignIn = (input?: Ref<HTMLInputElement | undefined>) => {
-  const singleInstanceServer = useAppConfig().singleInstanceServer
+  const singleInstanceServer = useRuntimeConfig().public.singleInstance
   const userSettings = useUserSettings()
   const users = useUsers()
   const { t } = useI18n()
diff --git a/docs/content/2.deployment/1.netlify.md b/docs/content/2.deployment/1.netlify.md
index 2184d472..22fe4caf 100644
--- a/docs/content/2.deployment/1.netlify.md
+++ b/docs/content/2.deployment/1.netlify.md
@@ -45,7 +45,7 @@ There are 5 environment variables to add.
 | NUXT_CLOUDFLARE_NAMESPACE_ID | This is your CloudFlare KV Namespace ID. You can find it in "Workers > KV". |
 | NUXT_STORAGE_DRIVER | Because we're using CloudFlare, we'll need to set this to `cloudflare`. |
 | NUXT_PUBLIC_DEFAULT_SERVER | This is the address of the Mastodon instance that will show up when a user visits your Elk deployment and is not logged in. If you don't make that variable, it will point to `m.webtoo.ls` by default. |
-| SINGLE_INSTANCE_SERVER | This can't be set at runtime, but if enabled at build-time it will disable signing in to servers other than the server specified in `NUXT_PUBLIC_DEFAULT_SERVER` |
+| NUXT_PUBLIC_SINGLE_INSTANCE | If enabled it will disable signing in to servers other than the server specified in `NUXT_PUBLIC_DEFAULT_SERVER` |
 | NUXT_PUBLIC_PRIVACY_POLICY_URL | This is the URL to a web page with information on your privacy policy. |
 
 That's it! All that's left to do is...
diff --git a/middleware/1.permalink.global.ts b/middleware/1.permalink.global.ts
index 64c789fa..c6aa8901 100644
--- a/middleware/1.permalink.global.ts
+++ b/middleware/1.permalink.global.ts
@@ -24,7 +24,7 @@ export default defineNuxtRouteMiddleware(async (to, from) => {
     return
 
   // Handle redirecting to new permalink structure for users with old links
-  if (!useAppConfig().singleInstanceServer && !to.params.server) {
+  if (!useRuntimeConfig().public.singleInstance && !to.params.server) {
     return {
       ...to,
       params: {
diff --git a/middleware/2.single-instance.global.ts b/middleware/2.single-instance.global.ts
index 4b12cddd..83bb9a2c 100644
--- a/middleware/2.single-instance.global.ts
+++ b/middleware/2.single-instance.global.ts
@@ -1,5 +1,5 @@
 export default defineNuxtRouteMiddleware(async (to) => {
-  if (process.server || !useAppConfig().singleInstanceServer)
+  if (process.server || !useRuntimeConfig().public.singleInstance)
     return
 
   if (to.params.server) {
diff --git a/nuxt.config.ts b/nuxt.config.ts
index abf34990..d17ad2ec 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -96,7 +96,6 @@ export default defineNuxtConfig({
     },
   },
   appConfig: {
-    singleInstanceServer: process.env.SINGLE_INSTANCE_SERVER === 'true',
     storage: {
       driver: process.env.NUXT_STORAGE_DRIVER ?? (isCI ? 'cloudflare' : 'fs'),
     },
@@ -115,6 +114,7 @@ export default defineNuxtConfig({
       translateApi: '',
       // Use the instance where Elk has its Mastodon account as the default
       defaultServer: 'm.webtoo.ls',
+      singleInstance: false,
     },
     storage: {
       fsBase: 'node_modules/.cache/app',