diff --git a/ent/application.go b/ent/application.go
index fdd9b7e..fc613b2 100644
--- a/ent/application.go
+++ b/ent/application.go
@@ -1,127 +1,18 @@
 package ent
 
 import (
-	"encoding/json"
-
-	"github.com/reiver/go-erorr"
 	"github.com/reiver/go-opt"
 	"github.com/reiver/go-nul"
 )
 
-var _ json.Marshaler = Application{}
-
-const (
-	errCannotMashalApplicationAsJSONNoName = erorr.Error("cannot marshal ent.Application to JSON — no ‘name’ set")
-)
-
 // Appication represents a Mastodon API "Appication".
 //
 // See:
 // https://docs.joinmastodon.org/entities/Application/
 type Application struct {
 	Name         opt.Optional[string] `json:"name"`
-	WebSite      nul.Nullable[string] `json:"website"`       // optional — field has JSON null value in JSON if not set
-	VapidKey     opt.Optional[string] `json:"vapid_key"`     // optional — field not included in JSON if not set
-	ClientID     opt.Optional[string] `json:"client_id"`     // optional — field not included in JSON if not set
-	ClientSecret opt.Optional[string] `json:"client_secret"` // optional — field not included in JSON if not set
-}
-
-func (receiver Application) MarshalJSON() ([]byte, error) {
-
-	var array [512]byte
-	var buffer []byte = array[0:0]
-
-	buffer = append(buffer, "{"...)
-
-	{
-		val, found := receiver.Name.Get()
-		if !found {
-			return nil, errCannotMashalApplicationAsJSONNoName
-		}
-
-		buffer = append(buffer, `"name":`...)
-
-		{
-			marshaled, err := json.Marshal(val)
-			if nil != err {
-				return nil, erorr.Errorf("ent: could not marshal ent.Application.Name as JSON: %w", err)
-			}
-
-			buffer = append(buffer, marshaled...)
-		}
-	}
-
-	{
-		buffer = append(buffer, `,"website":`...)
-
-		switch receiver.WebSite {
-		case nul.Nothing[string](), nul.Null[string]():
-			buffer = append(buffer, `null`...)
-		default:
-			website, found := receiver.WebSite.Get()
-			if !found {
-				return nil, erorr.Error("ent: could not marshal ent.Application.WebSite as JSON: internal error")
-			}
-
-			marshaled, err := json.Marshal(website)
-			if nil != err {
-				return nil, erorr.Errorf("ent: could not marshal ent.Application.WebSite as JSON: %w", err)
-			}
-
-			buffer = append(buffer, marshaled...)
-		}
-	}
-
-	{
-		val, found := receiver.VapidKey.Get()
-		if found {
-			buffer = append(buffer, `,"vapid_key":`...)
-
-			{
-				marshaled, err := json.Marshal(val)
-				if nil != err {
-					return nil, erorr.Errorf("ent: could not marshal ent.Application.VapidKey as JSON: %w", err)
-				}
-
-				buffer = append(buffer, marshaled...)
-			}
-		}
-	}
-
-	{
-		val, found := receiver.ClientID.Get()
-		if found {
-			buffer = append(buffer, `,"client_id":`...)
-
-			{
-				marshaled, err := json.Marshal(val)
-				if nil != err {
-					return nil, erorr.Errorf("ent: could not marshal ent.Application.ClientID as JSON: %w", err)
-				}
-
-				buffer = append(buffer, marshaled...)
-			}
-		}
-	}
-
-	{
-		val, found := receiver.ClientSecret.Get()
-		if found {
-			buffer = append(buffer, `,"client_secret":`...)
-
-			{
-				marshaled, err := json.Marshal(val)
-				if nil != err {
-					return nil, erorr.Errorf("ent: could not marshal ent.Application.ClientSecret as JSON: %w", err)
-				}
-
-				buffer = append(buffer, marshaled...)
-			}
-		}
-	}
-
-	buffer = append(buffer, "}"...)
-
-
-	return buffer, nil
+	WebSite      nul.Nullable[string] `json:"website,omitempty"`       // optional — field has JSON null value in JSON if not set
+	VapidKey     opt.Optional[string] `json:"vapid_key,omitempty"`     // optional — field not included in JSON if not set
+	ClientID     opt.Optional[string] `json:"client_id,omitempty"`     // optional — field not included in JSON if not set
+	ClientSecret opt.Optional[string] `json:"client_secret,omitempty"` // optional — field not included in JSON if not set
 }
diff --git a/ent/application_marshaljson_test.go b/ent/application_marshaljson_test.go
index beaedf6..12ea057 100644
--- a/ent/application_marshaljson_test.go
+++ b/ent/application_marshaljson_test.go
@@ -3,8 +3,7 @@ package ent_test
 import (
 	"testing"
 
-	"encoding/json"
-
+	"github.com/reiver/go-json"
 	"github.com/reiver/go-jsonpp"
 	"github.com/reiver/go-nul"
 	"github.com/reiver/go-opt"
@@ -21,6 +20,7 @@ func TestApplication_MarshalJSON(t *testing.T) {
 		{
 			Application: ent.Application{
 				Name:     opt.Something("acme app"),
+				WebSite: nul.Null[string](),
 				VapidKey: opt.Something("BHgNMADAUjgYgM4PZtHkY3yTQRYD-ibS_qrWYg2KPBRidocowKcOc-8YpyItumamkGph2bk8FuryT4-p3Eymwz8"),
 			},
 			Expected: