very elegant extension API and parts of it used in std as POC

orchid-base/src/lib.rs

@@ -5,14 +5,15 @@ pub mod event;
 pub mod msg;
 // pub mod gen;
 pub mod api_utils;
+pub mod box_cow;
 pub mod char_filter;
+pub mod error;
 pub mod id_store;
-pub mod intern;
+pub mod interner;
 pub mod join;
 pub mod location;
 pub mod name;
-pub mod proj_error;
 pub mod reqnot;
 pub mod sequence;
 pub mod tree;
-pub mod virt_fs;
+// pub mod virt_fs;