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-rw-r--r--docs/config.md3
1 files changed, 2 insertions, 1 deletions
diff --git a/docs/config.md b/docs/config.md
index 972f9403..a55aef1c 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -496,7 +496,8 @@ palette; Ripple and Glitch primarily perturb sample coordinates.
`EffectCode PanelAscii` or `EffectCode Crt` lists the current backend's
build-embedded source paths under `/virtual`. Look opens each full file;
-no checkout is needed. TTY exposes grid transitions, native GUI builds also
+no checkout is needed, but the build must carry them (`-Dembed-sources=true`,
+the default only for esp32p4); otherwise the command reports them unavailable. TTY exposes grid transitions, native GUI builds also
expose scene shaders, and web has neither. Shared implementations share paths.
SDL reports whether GLSL was compiled during this build or came from the
`-Dprebuilt-shaders` snapshot paired with the committed SPIR-V.