change how static is handled

nodes/1_lib/source/default.nix

@@ -4,11 +4,11 @@
  * for new functions in `./tests.nix`.
  */
 let
-  foundation = import ./detangled/1_foundation.nix;
+  foundation  = import ./detangled/1_foundation.nix;
-  fixedPoints = import ./detangled/2_fixed-points.nix;
+  static      = import ./detangled/2_static.nix;
+  fixedPoints = import ./detangled/3_fixed-points.nix;
 in
   let
-    static = foundation.loadStatic ../.;
     untangledBase = {
       # constants
       sourceTypes  = static.setup.sourceTypes;

nodes/1_lib/source/detangled/1_foundation.nix

@@ -153,6 +153,18 @@ let
       __functionArgs = args;
     };
   
+  # See https://github.com/NixOS/nix/issues/749. Eventually we'd like these
+  # to expand to Nix builtins that carry metadata so that Nix can filter out
+  # the INFO messages without parsing the message string.
+  #
+  # Usage:
+  # {
+  #   foo = lib.warn "foo is deprecated" oldFoo;
+  #   bar = lib.warnIf (bar == "") "Empty bar is deprecated" bar;
+  # }
+  #
+  # TODO: figure out a clever way to integrate location information from
+  # something like __unsafeGetAttrPos.
   /**
     Print a warning before returning the second argument. This function behaves
     like `builtins.trace`, but requires a string message and formats it as a

nodes/1_lib/source/detangled/2_static.nix

@@ -0,0 +1,19 @@
+let # internal lib dependencies
+  foundation = import ./1_foundation.nix;
+in
+  # e.g. the root of the node
+  foundation.loadStatic ../../.
+  # will end up being an object like this:
+    # {
+    #   setup = {
+    #     release = "";
+    #     sourceTypes = { ...};
+    #     licenses = { ... };
+    #     maintainers = [ ... ];
+    #     teams = { ... };
+    #   };
+    #   meta = {
+    #     minNixVersion = "2.3";
+    #     generatedBy = "";
+    #   };
+    # }