diff --git a/flags.go b/flags.go
new file mode 100644
index 0000000..2a6d5c4
--- /dev/null
+++ b/flags.go
@@ -0,0 +1,9 @@
+package json
+
+import (
+	"github.com/go-json-experiment/json/internal/jsonflags"
+)
+
+type (
+	BoolFlags = jsonflags.Bools
+)
diff --git a/internal/jsonflags/flags.go b/internal/jsonflags/flags.go
index c2473cd..9860f17 100644
--- a/internal/jsonflags/flags.go
+++ b/internal/jsonflags/flags.go
@@ -6,8 +6,6 @@
 // These flags are shared across both "json", "jsontext", and "jsonopts".
 package jsonflags
 
-import "github.com/go-json-experiment/json/internal"
-
 // Bools represents zero or more boolean flags, all set to true or false.
 // The least-significant bit is the boolean value of all flags in the set.
 // The remaining bits identify which particular flags.
@@ -17,7 +15,7 @@ import "github.com/go-json-experiment/json/internal"
 //   - (Expand | Indent | 1) means "Expand and Indent are true"
 type Bools uint64
 
-func (Bools) JSONOptions(internal.NotForPublicUse) {}
+func (Bools) JSONOptions() {}
 
 const (
 	// AllFlags is the set of all flags.
diff --git a/internal/jsonopts/options.go b/internal/jsonopts/options.go
index 6b63d5c..376780c 100644
--- a/internal/jsonopts/options.go
+++ b/internal/jsonopts/options.go
@@ -5,14 +5,13 @@
 package jsonopts
 
 import (
-	"github.com/go-json-experiment/json/internal"
 	"github.com/go-json-experiment/json/internal/jsonflags"
 )
 
 // Options is the common options type shared across json packages.
 type Options interface {
 	// JSONOptions is exported so related json packages can implement Options.
-	JSONOptions(internal.NotForPublicUse)
+	JSONOptions()
 }
 
 // Struct is the combination of all options in struct form.
@@ -72,7 +71,7 @@ func (dst *Struct) CopyCoderOptions(src *Struct) {
 	dst.CoderValues = src.CoderValues
 }
 
-func (*Struct) JSONOptions(internal.NotForPublicUse) {}
+func (*Struct) JSONOptions() {}
 
 // GetUnknownOption is injected by the "json" package to handle Options
 // declared in that package so that "jsonopts" can handle them.
@@ -170,7 +169,13 @@ func (dst *Struct) Join(srcs ...Options) {
 				dst.FormatDepth = src.FormatDepth
 			}
 		default:
-			JoinUnknownOption(dst, src)
+			unknown := true
+			if joiner, ok := src.(interface{ Join(*Struct, Options) bool }); ok {
+				unknown = joiner.Join(dst, src)
+			}
+			if unknown {
+				JoinUnknownOption(dst, src)
+			}
 		}
 	}
 }
@@ -184,7 +189,7 @@ type (
 	// type for jsonflags.Unmarshalers declared in "json" package
 )
 
-func (Indent) JSONOptions(internal.NotForPublicUse)       {}
-func (IndentPrefix) JSONOptions(internal.NotForPublicUse) {}
-func (ByteLimit) JSONOptions(internal.NotForPublicUse)    {}
-func (DepthLimit) JSONOptions(internal.NotForPublicUse)   {}
+func (Indent) JSONOptions()       {}
+func (IndentPrefix) JSONOptions() {}
+func (ByteLimit) JSONOptions()    {}
+func (DepthLimit) JSONOptions()   {}
diff --git a/options.go b/options.go
index a43e31e..3bbd391 100644
--- a/options.go
+++ b/options.go
@@ -7,7 +7,6 @@ package json
 import (
 	"fmt"
 
-	"github.com/go-json-experiment/json/internal"
 	"github.com/go-json-experiment/json/internal/jsonflags"
 	"github.com/go-json-experiment/json/internal/jsonopts"
 )
@@ -69,6 +68,7 @@ import (
 //
 // Options that do not affect a particular operation are ignored.
 type Options = jsonopts.Options
+type OptionsStruct = jsonopts.Struct
 
 // JoinOptions coalesces the provided list of options into a single Options.
 // Properties set in later options override the value of previously set properties.
@@ -237,8 +237,8 @@ type (
 	unmarshalersOption Unmarshalers
 )
 
-func (*marshalersOption) JSONOptions(internal.NotForPublicUse)   {}
-func (*unmarshalersOption) JSONOptions(internal.NotForPublicUse) {}
+func (*marshalersOption) JSONOptions()   {}
+func (*unmarshalersOption) JSONOptions() {}
 
 // Inject support into "jsonopts" to handle these types.
 func init() {