diff --git a/.hooks/pre-commit b/.hooks/pre-commit
index 6a82602..5396a51 100755
--- a/.hooks/pre-commit
+++ b/.hooks/pre-commit
@@ -1,7 +1,6 @@
 #!/bin/sh
 
 cargo readme -o README.md
-cargo readme -r default-for -o README.md
 cargo readme -r derive-bounded -o README.md
 cargo readme -r optimal-core -o README.md
 cargo readme -r optimal-pbil -o README.md
diff --git a/Cargo.lock b/Cargo.lock
index ef7ac2d..37ef771 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -70,10 +70,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 
-[[package]]
-name = "default-for"
-version = "0.1.0"
-
 [[package]]
 name = "derive-bounded"
 version = "0.1.0"
@@ -225,7 +221,6 @@ dependencies = [
 name = "optimal-pbil"
 version = "0.1.0"
 dependencies = [
- "default-for",
  "derive-bounded",
  "derive-getters",
  "derive_more",
@@ -246,7 +241,6 @@ dependencies = [
 name = "optimal-steepest"
 version = "0.1.0"
 dependencies = [
- "default-for",
  "derive-bounded",
  "derive-getters",
  "derive_more",
diff --git a/Cargo.toml b/Cargo.toml
index 814ebc6..cbcd859 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,5 @@
 [workspace]
 members = [
-  "default-for",
   "derive-bounded",
   "optimal-binary",
   "optimal-core",
diff --git a/default-for/Cargo.toml b/default-for/Cargo.toml
deleted file mode 100644
index b52ba3a..0000000
--- a/default-for/Cargo.toml
+++ /dev/null
@@ -1,15 +0,0 @@
-[package]
-name = "default-for"
-version = "0.1.0"
-edition = "2021"
-authors = ["Justin Lovinger"]
-description = "Generalization of the `Default` trait"
-repository = "https://github.com/justinlovinger/optimal-rs"
-readme = "README.md"
-keywords = ["trait"]
-categories = ["rust-patterns"]
-license = "MIT"
-
-[dependencies]
-
-[dev-dependencies]
diff --git a/default-for/README.md b/default-for/README.md
deleted file mode 100644
index 2dd07d5..0000000
--- a/default-for/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# default-for
-
-License: MIT
diff --git a/default-for/src/lib.rs b/default-for/src/lib.rs
deleted file mode 100644
index 55436b0..0000000
--- a/default-for/src/lib.rs
+++ /dev/null
@@ -1,15 +0,0 @@
-/// A type with a default value
-/// parameterized on another value.
-pub trait DefaultFor<T> {
-    /// Return a default value for `x`.
-    fn default_for(x: T) -> Self;
-}
-
-impl<A, T> DefaultFor<A> for T
-where
-    T: Default,
-{
-    fn default_for(_: A) -> Self {
-        T::default()
-    }
-}
diff --git a/derive-num-bounded/README.md b/derive-num-bounded/README.md
new file mode 100644
index 0000000..e0e8ea3
--- /dev/null
+++ b/derive-num-bounded/README.md
@@ -0,0 +1,3 @@
+# derive-bounded
+
+License: MIT
diff --git a/optimal-pbil/Cargo.toml b/optimal-pbil/Cargo.toml
index accaf62..8070d08 100644
--- a/optimal-pbil/Cargo.toml
+++ b/optimal-pbil/Cargo.toml
@@ -14,7 +14,6 @@ license = "MIT"
 serde = ["dep:serde", "rand/serde1", "rand_xoshiro/serde1"]
 
 [dependencies]
-default-for = { path = "../default-for" }
 derive-bounded = { path = "../derive-bounded" }
 derive-getters = "0.3.0"
 derive_more = "0.99.17"
diff --git a/optimal-pbil/src/lib.rs b/optimal-pbil/src/lib.rs
index 533a225..c5a17e3 100644
--- a/optimal-pbil/src/lib.rs
+++ b/optimal-pbil/src/lib.rs
@@ -23,7 +23,6 @@ mod state_machine;
 mod types;
 mod until_probabilities_converged;
 
-use default_for::DefaultFor;
 use derive_getters::{Dissolve, Getters};
 use derive_more::IsVariant;
 pub use optimal_core::prelude::*;
@@ -191,8 +190,9 @@ impl Config {
     }
 }
 
-impl DefaultFor<usize> for Config {
-    fn default_for(num_bits: usize) -> Self {
+impl Config {
+    /// Return default 'Config'.
+    pub fn default_for(num_bits: usize) -> Self {
         Self {
             num_samples: NumSamples::default(),
             adjust_rate: AdjustRate::default(),
@@ -200,9 +200,7 @@ impl DefaultFor<usize> for Config {
             mutation_adjust_rate: MutationAdjustRate::default(),
         }
     }
-}
 
-impl Config {
     /// Return this optimizer default
     /// running on the given problem.
     ///
diff --git a/optimal-pbil/src/types.rs b/optimal-pbil/src/types.rs
index 4ab5c1b..4c23c34 100644
--- a/optimal-pbil/src/types.rs
+++ b/optimal-pbil/src/types.rs
@@ -1,7 +1,6 @@
 use core::convert::TryFrom;
 use std::f64::EPSILON;
 
-use default_for::DefaultFor;
 use derive_bounded::{
     derive_from_str_from_try_into, derive_into_inner, derive_new_from_bounded_float,
     derive_new_from_lower_bounded, derive_try_from_from_new,
@@ -87,10 +86,10 @@ impl Ord for AdjustRate {
 #[cfg_attr(feature = "serde", serde(try_from = "f64"))]
 pub struct MutationChance(f64);
 
-impl DefaultFor<usize> for MutationChance {
+impl MutationChance {
     /// Return recommended default mutation chance,
     /// average of one mutation per step.
-    fn default_for(num_bits: usize) -> Self {
+    pub fn default_for(num_bits: usize) -> Self {
         if num_bits == 0 {
             Self(1.)
         } else {
diff --git a/optimal-steepest/Cargo.toml b/optimal-steepest/Cargo.toml
index 68f41fe..c37a9be 100644
--- a/optimal-steepest/Cargo.toml
+++ b/optimal-steepest/Cargo.toml
@@ -14,7 +14,6 @@ license = "MIT"
 serde = ["dep:serde"]
 
 [dependencies]
-default-for = { path = "../default-for" }
 derive-bounded = { path = "../derive-bounded" }
 derive-getters = "0.3.0"
 derive_more = "0.99.17"