diff --git a/string/gen_optiontype.go b/string/gen_optiontype.go
deleted file mode 100644
index 5bf16aa..0000000
--- a/string/gen_optiontype.go
+++ /dev/null
@@ -1,248 +0,0 @@
-package optstring
-
-/*
- * CODE GENERATED AUTOMATICALLY WITH https://github.com/reiver/gogen-optiontype
- * THIS FILE SHOULD NOT BE EDITED BY HAND
- */
-
-import (
-	"bytes"
-	"database/sql/driver"
-	"encoding/json"
-	"errors"
-	"fmt"
-)
-
-var (
-	errNilReceiver  = errors.New("Nil Receiver")
-	errNone         = errors.New("optstring.None()")
-	errNoneNullable = errors.New("optstring.NoneNullable()")
-	errNull         = errors.New("optstring.Null()")
-)
-
-func (receiver *NullableType) Scan(src interface{}) error {
-	if nil == receiver {
-		return errNilReceiver
-	}
-
-	if nil == src {
-		*receiver = Null()
-		return nil
-	}
-
-	switch t := src.(type) {
-	case NullableType:
-		*receiver = t
-		return nil
-	case Type:
-		switch t {
-		case None():
-			*receiver = NoneNullable()
-		default:
-			datum, err := t.String()
-			if nil != err {
-				return fmt.Errorf("Problem unwrapping %T: (%T) %v", t, err, err)
-			}
-			*receiver = SomeNullable(datum)
-		}
-		return nil
-	case string:
-		*receiver = SomeNullable(t)
-		return nil
-	case []byte:
-		s := string(t)
-		*receiver = SomeNullable(s)
-		return nil
-	default:
-		return fmt.Errorf("Cannot scan something of type %T into an %T.", src, *receiver)
-	}
-}
-
-func (receiver NullableType) String() (string, error) {
-	if NoneNullable() == receiver {
-		return "", errNoneNullable
-	}
-	if Null() == receiver {
-		return "", errNull
-	}
-
-	return receiver.value, nil
-}
-
-type NullableType struct {
-	loaded bool
-	null   bool
-	value  string
-}
-
-func (receiver NullableType) MarshalJSON() ([]byte, error) {
-	if NoneNullable() == receiver {
-		return nil, errNoneNullable
-	}
-	if Null() == receiver {
-		return json.Marshal(nil)
-	}
-
-	return json.Marshal(receiver.value)
-}
-
-func (receiver NullableType) WhenNone(fn func()) {
-	if NoneNullable() == receiver {
-		fn()
-	}
-}
-
-func (receiver NullableType) WhenNull(fn func()) {
-	if Null() == receiver {
-		fn()
-	}
-}
-
-func (receiver NullableType) WhenSome(fn func(string)) {
-	if NoneNullable() != receiver && Null() != receiver {
-		fn(receiver.value)
-	}
-}
-
-func (receiver *NullableType) UnmarshalJSON(b []byte) error {
-	if nil == receiver {
-		return errNilReceiver
-	}
-
-	if 0 == bytes.Compare(b, []byte{'n','u','l','l'}) {
-		*receiver = Null()
-		return nil
-	}
-
-	var target string
-
-	if err := json.Unmarshal(b, &target); nil != err {
-		return err
-	}
-
-	*receiver = SomeNullable(target)
-
-	return nil
-}
-
-func (receiver NullableType) Value() (driver.Value, error) {
-	if NoneNullable() == receiver {
-		return nil, errNoneNullable
-	}
-	if Null() == receiver {
-		return nil, nil
-	}
-
-	return receiver.value, nil
-}
-
-func NoneNullable() NullableType {
-	return NullableType{}
-}
-
-func SomeNullable(value string) NullableType {
-	return NullableType{
-		value:  value,
-		loaded: true,
-	}
-}
-
-func Null() NullableType {
-	return NullableType{
-		null:   true,
-		loaded: true,
-	}
-}
-
-func (receiver *Type) Scan(src interface{}) error {
-	if nil == receiver {
-		return errNilReceiver
-	}
-
-	switch t := src.(type) {
-	case Type:
-		*receiver = t
-		return nil
-	case string:
-		*receiver = Some(t)
-		return nil
-	case []byte:
-		s := string(t)
-		*receiver = Some(s)
-		return nil
-	default:
-		return fmt.Errorf("Cannot scan something of type %T into an %T.", src, *receiver)
-	}
-}
-
-func (receiver Type) String() (string, error) {
-	if None() == receiver {
-		return "", errNone
-	}
-
-	return receiver.value, nil
-}
-
-type Type struct {
-	loaded bool
-	value  string
-}
-
-func (receiver Type) MarshalJSON() ([]byte, error) {
-	if None() == receiver {
-		return nil, errNone
-	}
-
-	return json.Marshal(receiver.value)
-}
-
-func (receiver *Type) UnmarshalJSON(b []byte) error {
-	if nil == receiver {
-		return errNilReceiver
-	}
-
-	if 0 == bytes.Compare(b, []byte{'n','u','l','l'}) {
-		return fmt.Errorf("Cannot unmarshal %q into %T.", string(b), *receiver)
-	}
-
-	var target string
-
-	if err := json.Unmarshal(b, &target); nil != err {
-		return err
-	}
-
-	*receiver = Some(target)
-
-	return nil
-}
-
-func (receiver Type) WhenNone(fn func()) {
-	if None() == receiver {
-		fn()
-	}
-}
-
-func (receiver Type) WhenSome(fn func(string)) {
-	if None() != receiver {
-		fn(receiver.value)
-	}
-}
-
-func (receiver Type) Value() (driver.Value, error) {
-	if None() == receiver {
-		return nil, errNone
-	}
-
-	return receiver.value, nil
-}
-
-func None() Type {
-	return Type{}
-}
-
-func Some(value string) Type {
-	return Type{
-		value:  value,
-		loaded: true,
-	}
-}
diff --git a/string/optiontype.go b/string/optiontype.go
deleted file mode 100644
index a411f77..0000000
--- a/string/optiontype.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package optstring
-
-//go:generate gogen-optiontype --pkg=optstring --type=string --one-file --no-tests