Merge branch 'main' into debugging-client

doc/en/scripting/builtins/libapp.md

@@ -173,3 +173,21 @@ app.create_memory_device(
 ```
 
 Creates an in-memory filesystem.
+
+```lua
+app.get_content_sources() -> table<string>
+```
+
+Returns a list of content sources (paths), in descending priority order.
+
+``lua
+app.set_content_sources(sources: table<string>)
+```
+
+Sets a list of content sources (paths). Specified in descending priority order.
+
+``lua
+app.reset_content_sources()
+```
+
+Resets content sources.