add config environment.etc which gets converted to pseudofiles

modules/base.nix

@@ -17,6 +17,7 @@ in {
     services = mkOption {
       type = types.attrsOf type_service;
     };
+    environment = mkOption { type = types.anything; };
     kernel = {
       config = mkOption {
         # mostly the values are y n or m, but sometimes
@@ -28,4 +29,16 @@ in {
       };
     };
   };
+  config = {
+    environment = dir {
+      etc = dir {
+        profile = symlink
+          (pkgs.writeScript ".profile" ''
+            PATH=${lib.makeBinPath (with pkgs; [ s6-init-bin busybox execline s6-linux-init s6-rc])}
+            export PATH
+          '');
+
+      };
+    };
+  };
 }