diff --git a/justfile b/justfile
index 0a8f431..31fd2f9 100644
--- a/justfile
+++ b/justfile
@@ -24,6 +24,9 @@ check:
     cargo fmt --all --check
     cargo clippy --locked --workspace --all-targets -- -D warnings
     cargo clippy --locked --workspace --all-targets --features {{ features }} -- -D warnings
+    # The studio as `cargo run -p moq-studio` builds it: alone, so the features
+    # only its tests' dependencies turn on cannot hide one it needs.
+    cargo check --locked -p moq-studio --features {{ features }}
 
 # Run the tests.
 [positional-arguments]
diff --git a/quest/m0/README.md b/quest/m0/README.md
index 19208a4..302d5fc 100644
--- a/quest/m0/README.md
+++ b/quest/m0/README.md
@@ -101,7 +101,6 @@ repository.
 - [Virtual camera](/quest/m0/vcam/README.md) - the program or a published scene exposed as a system camera on Linux, Windows, and macOS
 - [Browser sources on the GPU under Mesa](/quest/m0/cef-headless.md) - shared-texture pages paint on Intel and AMD under Wayland, and a page that cannot paint fails loudly
 - [Browser sources make no outside requests](/quest/m0/browser-offline.md) - no component updates, spellcheck downloads, or network time from the helper
-- [moq-studio builds on its own](/quest/m0/studio-builds-alone.md) - `cargo build -p moq-studio` no longer leans on a test dependency's features
 - [Unpublishing a scene ends its broadcast cleanly](/quest/m0/unpublish-clean.md) - viewers get a clean finish, not `Unroutable`, when a scene stops publishing
 - [A media file's sound plays with its pictures](/quest/m0/media-av-sync.md) - media sources write a bus latency ahead, as broadcast sources do
 - [The Apple signing identity is available](/quest/m0/signing.md) - the Apple credentials packaging and the macOS camera need; Windows ships unsigned
diff --git a/quest/m0/studio-builds-alone.md b/quest/m0/studio-builds-alone.md
deleted file mode 100644
index e004243..0000000
--- a/quest/m0/studio-builds-alone.md
+++ /dev/null
@@ -1,20 +0,0 @@
-# [XS] moq-studio builds on its own
-
-## Goal
-
-`cargo build -p moq-studio` succeeds on its own, not only inside a workspace
-build, because every feature the studio uses is enabled by its own
-dependencies.
-
-## Plan
-
-From [moq-dev/studio#84](https://github.com/moq-dev/studio/pull/84), picked
-2026-11-07 (maintainer away under /afk, recommended option), m0 by the rule
-that fixes join m0.
-
-`rs/moq-studio/src/health.rs` awaits moq-stats' async wrappers, but only a
-test dependency turns on moq-stats' `async` feature, so the workspace build
-and CI unify it in and never notice. Enable `async` on the studio's own
-moq-stats dependency, and check the other moq crates the studio awaits for
-the same gap. Recommendation, not settled: have `just check` build
-`moq-studio` on its own so CI catches the next one.