diff --git a/doc/Makefile b/doc/Makefile
index 0148f93cf5..379a136e55 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,6 +1,10 @@
-all:
-	@dune build @gendune --auto-promote
+all: dune
 	@dune build @doc
 
 test:
 	@dune build @doctest
+
+dune:
+	@dune build @gendune --auto-promote
+
+.PHONY: dune
diff --git a/doc/content/cookbook.md b/doc/content/cookbook.md
index 049c1e918c..abd244b5d6 100644
--- a/doc/content/cookbook.md
+++ b/doc/content/cookbook.md
@@ -95,7 +95,7 @@ Receiver:
 
 ## Scheduling
 
-```{.liquidsoap include="content/liq/scheduling.liq"}
+```{.liquidsoap include="content/liq/scheduling.liq" from=1 to=-1}
 
 ```
 
diff --git a/doc/content/liq/check b/doc/content/liq/check
new file mode 100755
index 0000000000..fc644ae011
--- /dev/null
+++ b/doc/content/liq/check
@@ -0,0 +1,4 @@
+#!/bin/sh
+# shellcheck disable=SC2068
+
+../../../liquidsoap --check $@
diff --git a/doc/content/liq/re-encode.liq b/doc/content/liq/re-encode.liq
index ed694f4bef..ac19614b04 100644
--- a/doc/content/liq/re-encode.liq
+++ b/doc/content/liq/re-encode.liq
@@ -2,7 +2,7 @@
 input = "/tmp/input.mp3"
 
 # The output file
-output = "/tmp/output.ogg"
+target = "/tmp/output.ogg"
 
 # A source that plays the file once
 source = once(single(input))
@@ -11,4 +11,4 @@ source = once(single(input))
 clock.assign_new(sync="none", [source])
 
 # Finally, we output the source to an ogg/vorbis file
-output.file(%vorbis, output, fallible=true, on_stop=shutdown, source)
+output.file(%vorbis, target, fallible=true, on_stop=shutdown, source)
diff --git a/doc/content/liq/scheduling.liq b/doc/content/liq/scheduling.liq
index 2c88c2f888..565595689c 100644
--- a/doc/content/liq/scheduling.liq
+++ b/doc/content/liq/scheduling.liq
@@ -1,7 +1,8 @@
+night=sine() day=sine()
 # A fallback switch
 fallback([playlist("http://my/playlist"),
           single("/my/jingle.ogg")])
 
-# A scheduler,
-# assuming you have defined the night and day sources
-switch([ ({0h-7h}, night), ({7h-24h}, day) ])
+# A scheduler, assuming you have defined the night and day sources
+s = switch([ ({0h-7h}, night), ({7h-24h}, day) ])
+output.dummy(fallible=true,s)
diff --git a/doc/dune.inc b/doc/dune.inc
index 1d1ba1750d..b785e33e31 100644
--- a/doc/dune.inc
+++ b/doc/dune.inc
@@ -80,6 +80,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -129,6 +132,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -178,6 +184,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -227,6 +236,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -276,6 +288,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -325,6 +340,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -374,6 +392,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -423,6 +444,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -472,6 +496,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -521,6 +548,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -570,6 +600,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -619,6 +652,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -668,6 +704,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -717,6 +756,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -766,6 +808,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -815,6 +860,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -864,6 +912,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -913,6 +964,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -962,6 +1016,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1011,6 +1068,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1060,6 +1120,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1109,6 +1172,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1158,6 +1224,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1207,6 +1276,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1256,6 +1328,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1305,6 +1380,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1354,6 +1432,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1403,6 +1484,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1452,6 +1536,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1501,6 +1588,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1550,6 +1640,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1599,6 +1692,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1648,6 +1744,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1697,6 +1796,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1746,6 +1848,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1795,6 +1900,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1844,6 +1952,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1893,6 +2004,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1942,6 +2056,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -1991,6 +2108,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2040,6 +2160,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2089,6 +2212,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2138,6 +2264,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2187,6 +2316,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2236,6 +2368,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2285,6 +2420,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2334,6 +2472,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2383,6 +2524,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2432,6 +2576,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2481,6 +2628,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2530,6 +2680,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2579,6 +2732,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2628,6 +2784,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2677,6 +2836,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2726,6 +2888,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2775,6 +2940,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2824,6 +2992,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2873,6 +3044,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2922,6 +3096,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -2971,6 +3148,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3020,6 +3200,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3069,6 +3252,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3118,6 +3304,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3167,6 +3356,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3216,6 +3408,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3265,6 +3460,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3314,6 +3512,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3363,6 +3564,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3412,6 +3616,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3461,6 +3668,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3510,6 +3720,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3559,6 +3772,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3608,6 +3824,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3657,6 +3876,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3706,6 +3928,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3755,6 +3980,9 @@
     content/liq/ffmpeg-shared-encoding-rtmp.liq
     content/liq/ffmpeg-shared-encoding.liq
     content/liq/frame-size.liq
+    content/liq/harbor-insert-metadata.liq
+    content/liq/harbor-metadata.liq
+    content/liq/harbor.http.response.liq
     content/liq/http-input.liq
     content/liq/icy-update.liq
     content/liq/medialib.liq
@@ -3782,261 +4010,1632 @@
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/append-silence.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/append-silence.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/complete-case.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/complete-case.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/cross.smart.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/cross.smart.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/dump-hourly.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/dump-hourly.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/dump-hourly2.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/dump-hourly2.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/dynamic-source.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/dynamic-source.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/ffmpeg-live-switch.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/ffmpeg-live-switch.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/ffmpeg-relay-ondemand.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/ffmpeg-relay-ondemand.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/ffmpeg-relay.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/ffmpeg-relay.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/ffmpeg-shared-encoding-rtmp.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/ffmpeg-shared-encoding-rtmp.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/ffmpeg-shared-encoding.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/ffmpeg-shared-encoding.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/frame-size.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/frame-size.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
+    (:test_liq content/liq/harbor-insert-metadata.liq)
+  )
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/harbor-insert-metadata.liq))
+)
+
+(rule
+  (alias doctest)
+  (package liquidsoap)
+  (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
+    (:test_liq content/liq/harbor-metadata.liq)
+  )
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/harbor-metadata.liq))
+)
+
+(rule
+  (alias doctest)
+  (package liquidsoap)
+  (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
+    (:test_liq content/liq/harbor.http.response.liq)
+  )
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/harbor.http.response.liq))
+)
+
+(rule
+  (alias doctest)
+  (package liquidsoap)
+  (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/http-input.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/http-input.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/icy-update.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/icy-update.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/medialib.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/medialib.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/radiopi.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/radiopi.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/re-encode.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/re-encode.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/regular.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/regular.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/replaygain-metadata.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/replaygain-metadata.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/replaygain-playlist.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/replaygain-playlist.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/rtmp.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/rtmp.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/scheduling.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/scheduling.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/shoutcast.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/shoutcast.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/space_overhead.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/space_overhead.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/split-cue.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/split-cue.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/srt-receiver.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/srt-receiver.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/srt-sender.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/srt-sender.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/transcoding.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/transcoding.liq))
 )
 
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+    ../src/libs/audio.liq
+    ../src/libs/clock.liq
+    ../src/libs/error.liq
+    ../src/libs/fades.liq
+    ../src/libs/ffmpeg.liq
+    ../src/libs/file.liq
+    ../src/libs/getter.liq
+    ../src/libs/hls.liq
+    ../src/libs/http.liq
+    ../src/libs/http_codes.liq
+    ../src/libs/icecast.liq
+    ../src/libs/io.liq
+    ../src/libs/liquidsoap.liq
+    ../src/libs/list.liq
+    ../src/libs/log.liq
+    ../src/libs/math.liq
+    ../src/libs/medialib.liq
+    ../src/libs/metadata.liq
+    ../src/libs/null.liq
+    ../src/libs/playlist.liq
+    ../src/libs/predicate.liq
+    ../src/libs/process.liq
+    ../src/libs/profiler.liq
+    ../src/libs/protocols.liq
+    ../src/libs/ref.liq
+    ../src/libs/replaygain.liq
+    ../src/libs/request.liq
+    ../src/libs/resolvers.liq
+    ../src/libs/runtime.liq
+    ../src/libs/server.liq
+    ../src/libs/settings.liq
+    ../src/libs/socket.liq
+    ../src/libs/source.liq
+    ../src/libs/stdlib.liq
+    ../src/libs/string.liq
+    ../src/libs/switches.liq
+    ../src/libs/testing.liq
+    ../src/libs/thread.liq
+    ../src/libs/tracks.liq
+    ../src/libs/utils.liq
+    ../src/libs/video.liq
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq content/liq/video-static.liq)
   )
-  (action (run %{bin:liquidsoap} --check %{test_liq}))
+  (action (run %{bin:liquidsoap} --no-stdlib %{stdlib} --check content/liq/video-static.liq))
 )
 
 (install
diff --git a/doc/gen_dune.ml b/doc/gen_dune.ml
index 6d55792f5b..5275dd6703 100644
--- a/doc/gen_dune.ml
+++ b/doc/gen_dune.ml
@@ -88,19 +88,22 @@ let mk_generated_rule (file, option, header) =
 |}
     header_deps file file header_action option header_close
 
-let mk_test_rule file =
+let mk_test_rule ~stdlib file =
+  let stdlib = stdlib |> List.map (fun f -> "    " ^ f) |> String.concat "\n" in
   Printf.printf
     {|
 (rule
   (alias doctest)
   (package liquidsoap)
   (deps
+%s
+    (:stdlib ../src/libs/stdlib.liq)
     (:test_liq %s)
   )
-  (action (run %%{bin:liquidsoap} --check %%{test_liq}))
+  (action (run %%{bin:liquidsoap} --no-stdlib %%{stdlib} --check %s))
 )
 |}
-    file
+    stdlib file file
 
 let mk_html_install f =
   Printf.sprintf {|    (%s as html/%s)|} (mk_html f) (mk_html f)
@@ -131,13 +134,20 @@ let () =
     |> List.sort compare
     |> List.map (fun f -> "content/liq/" ^ f)
   in
+  let stdlib =
+    Sys.readdir (Filename.concat location "../src/libs")
+    |> Array.to_list
+    |> List.filter (fun f -> Filename.extension f = ".liq")
+    |> List.sort compare
+    |> List.map (fun f -> "../src/libs/" ^ f)
+  in
   List.iter mk_generated_rule generated_md;
   List.iter mk_subst_rule md;
   List.iter
     (fun (file, _, _) -> mk_html_rule ~liq ~content:false file)
     generated_md;
   List.iter (mk_html_rule ~liq ~content:true) md;
-  List.iter mk_test_rule liq;
+  List.iter (mk_test_rule ~stdlib) liq;
   let files =
     List.map
       (fun f -> Printf.sprintf {|    (orig/%s as html/%s)|} f f)