diff --git a/.gitignore b/.gitignore
index 597ce1580..5412c5798 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,10 @@ marketing/channels/marketing/cowork/outbox/dry-runs/
 .next
 out
 .vercel
+# Regenerated by every `next build` / `next dev`, and its contents differ
+# between the two (dev writes ./.next/dev/types, build writes the Nx dist
+# path). Tracking it means every build dirties the working tree.
+apps/*/next-env.d.ts
 
 # Whitepaper signup data
 apps/website/data/
diff --git a/apps/cockpit/next-env.d.ts b/apps/cockpit/next-env.d.ts
deleted file mode 100644
index c4b7818fb..000000000
--- a/apps/cockpit/next-env.d.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-/// <reference types="next" />
-/// <reference types="next/image-types/global" />
-import "./.next/dev/types/routes.d.ts";
-
-// NOTE: This file should not be edited
-// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.
diff --git a/apps/website/next-env.d.ts b/apps/website/next-env.d.ts
deleted file mode 100644
index c4b7818fb..000000000
--- a/apps/website/next-env.d.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-/// <reference types="next" />
-/// <reference types="next/image-types/global" />
-import "./.next/dev/types/routes.d.ts";
-
-// NOTE: This file should not be edited
-// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.