diff --git a/config/config.ts b/config/config.ts
index 2c5e020..cd4ef3e 100644
--- a/config/config.ts
+++ b/config/config.ts
@@ -7,9 +7,10 @@ export class Config<A extends ConfigSpec> extends IBuilder<A> {
     return new Config({});
   }
   static withValue<K extends string, B extends ValueSpec>(key: K, value: Value<B>) {
-    return new Config({
-      [key]: value.build(),
-    } as { [key in K]: B });
+    return Config.empty().withValue(key, value);
+  }
+  static addValue<K extends string, B extends ValueSpec>(key: K, value: Value<B>) {
+    return Config.empty().withValue(key, value);
   }
 
   static of<B extends { [key: string]: Value<C> }, C extends ValueSpec>(spec: B) {
diff --git a/config/list.ts b/config/list.ts
index f2ffaad..1ed3a4b 100644
--- a/config/list.ts
+++ b/config/list.ts
@@ -1,4 +1,4 @@
-import { IBuilder } from "./builder.ts";
+import { BuilderExtract, IBuilder } from "./builder.ts";
 import { Config } from "./config.ts";
 import { Default, NullableDefault, NumberSpec, StringSpec } from "./value.ts";
 import { Description } from "./value.ts";
@@ -50,19 +50,18 @@ export class List<A extends ValueSpecList> extends IBuilder<A> {
   }
   static objectV<
     A extends Description &
-      NullableDefault<Record<string, unknown>[]> & {
+      Default<Record<string, unknown>[]> & {
         range: string;
         spec: {
-          spec: Config<B>;
+          spec: Config<ConfigSpec>;
           "display-as": null | string;
           "unique-by": null | UniqueBy;
         };
-      },
-    B extends ConfigSpec
+      }
   >(a: A) {
     const { spec: previousSpec, ...rest } = a;
     const { spec: previousSpecSpec, ...restSpec } = previousSpec;
-    const specSpec = previousSpecSpec.build();
+    const specSpec = previousSpecSpec.build() as BuilderExtract<A["spec"]["spec"]>;
     const spec = {
       ...restSpec,
       spec: specSpec,
@@ -75,7 +74,7 @@ export class List<A extends ValueSpecList> extends IBuilder<A> {
       type: "list" as const,
       subtype: "object" as const,
       ...value,
-    } as ValueSpecListOf<"object">);
+    });
   }
   static union<
     A extends Description &
@@ -90,17 +89,16 @@ export class List<A extends ValueSpecList> extends IBuilder<A> {
               [key: string]: string;
             };
           };
-          variants: Variants<B>;
+          variants: Variants<{ [key: string]: ConfigSpec }>;
           "display-as": null | string;
           "unique-by": UniqueBy;
           default: string;
         };
-      },
-    B extends { [key: string]: ConfigSpec }
+      }
   >(a: A) {
     const { spec: previousSpec, ...rest } = a;
     const { variants: previousVariants, ...restSpec } = previousSpec;
-    const variants = previousVariants.build();
+    const variants = previousVariants.build() as BuilderExtract<A["spec"]["variants"]>;
     const spec = {
       ...restSpec,
       variants,
diff --git a/config/value.ts b/config/value.ts
index c87d190..61dd24e 100644
--- a/config/value.ts
+++ b/config/value.ts
@@ -1,4 +1,4 @@
-import { IBuilder } from "./builder.ts";
+import { BuilderExtract, IBuilder } from "./builder.ts";
 import { Config } from "./config.ts";
 import { List } from "./list.ts";
 import { Pointer } from "./pointer.ts";
@@ -9,6 +9,7 @@ import {
   ValueSpec,
   ValueSpecList,
   ValueSpecNumber,
+  ValueSpecObject,
   ValueSpecString,
 } from "../types/config-types.ts";
 
@@ -80,18 +81,20 @@ export class Value<A extends ValueSpec> extends IBuilder<A> {
       ...a,
     });
   }
-  static objectV<
-    A extends Description &
-      NullableDefault<{ [k: string]: unknown }> & {
-        "display-as": null | string;
-        "unique-by": null | string;
-        spec: Config<B>;
-        "value-names": Record<string, string>;
-      },
-    B extends ConfigSpec
+  static object<
+    A extends {
+      name: string;
+      description: string | null;
+      warning: string | null;
+      default: null | { [k: string]: unknown };
+      "display-as": null | string;
+      "unique-by": null | string;
+      spec: Config<ConfigSpec>;
+      "value-names": Record<string, string>;
+    }
   >(a: A) {
     const { spec: previousSpec, ...rest } = a;
-    const spec = previousSpec.build();
+    const spec = previousSpec.build() as BuilderExtract<A["spec"]>;
     return new Value({
       type: "object" as const,
       ...rest,
@@ -110,14 +113,13 @@ export class Value<A extends ValueSpec> extends IBuilder<A> {
             [key: string]: string;
           };
         };
-        variants: Variants<B>;
+        variants: Variants<{ [key: string]: ConfigSpec }>;
         "display-as": string | null;
         "unique-by": UniqueBy;
-      },
-    B extends { [key: string]: ConfigSpec }
+      }
   >(a: A) {
     const { variants: previousVariants, ...rest } = a;
-    const variants = previousVariants.build();
+    const variants = previousVariants.build() as BuilderExtract<A["variants"]>;
     return new Value({
       type: "union" as const,
       ...rest,
@@ -128,7 +130,7 @@ export class Value<A extends ValueSpec> extends IBuilder<A> {
   static pointer<A extends ValueSpec>(a: Pointer<A>) {
     return new Value(a.build());
   }
-  static list<A extends List<B>, B extends ValueSpecList>(a: A) {
+  static list<A extends List<ValueSpecList>>(a: A) {
     return new Value(a.build());
   }
 }
diff --git a/types/config-types.ts b/types/config-types.ts
index 6eb6275..e7d2c8c 100644
--- a/types/config-types.ts
+++ b/types/config-types.ts
@@ -135,7 +135,7 @@ export interface ListValueSpecEnum {
 export interface ListValueSpecObject {
   spec: ConfigSpec; // this is a mapped type of the config object at this level, replacing the object's values with specs on those values
   "unique-by": UniqueBy; // indicates whether duplicates can be permitted in the list
-  "display-as"?: string; // this should be a handlebars template which can make use of the entire config which corresponds to 'spec'
+  "display-as"?: null | string; // this should be a handlebars template which can make use of the entire config which corresponds to 'spec'
 }
 
 export type UniqueBy =
diff --git a/utils/propertiesMatcher.ts b/utils/propertiesMatcher.ts
index 636ab6e..b0c4395 100644
--- a/utils/propertiesMatcher.ts
+++ b/utils/propertiesMatcher.ts
@@ -52,7 +52,7 @@ type GuardList<A> =
 // prettier-ignore
 // deno-fmt-ignore
 type GuardPointer<A> = 
-    A extends {readonly type:TypePointer} ? {_UNKNOWN: "Pointer"} :
+    A extends {readonly type:TypePointer} ? (string | null) :
     unknown
 // prettier-ignore
 // deno-fmt-ignore