diff --git a/AUTHORS b/AUTHORS
index 78d9c1e..2cde0f6 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -3,3 +3,4 @@
 
 Manfred Touron <94029+moul@users.noreply.github.com>
 Manfred Touron <m@42.am>
+Renovate Bot <bot@renovateapp.com>
diff --git a/api/sgtm.proto b/api/sgtm.proto
index 580eb6f..a29d9fc 100644
--- a/api/sgtm.proto
+++ b/api/sgtm.proto
@@ -30,10 +30,10 @@ message Status {
 
 message Register {
   message Request {
-    string email = 10 [(go.field.options) = {tags: 'gorm:"size:255;not null;index:,unique"'}];
-    string username = 11 [(go.field.options) = {tags: 'gorm:"size:32;not null;default:\'\'"'}];
-    string firstname = 12 [(go.field.options) = {tags: 'gorm:"size:255;not null;default:\'\'"'}];
-    string lastname = 13 [(go.field.options) = {tags: 'gorm:"size:255;not null;default:\'\'"'}];
+    string email = 10;
+    string slug = 11;
+    string firstname = 12;
+    string lastname = 13;
   }
   message Response {
     User user = 1;
@@ -56,6 +56,19 @@ message PostList {
 
 /// Models
 
+/*
+╔══════════════╗    ╔══════════════╗
+║     Post     ║    ║     User     ║
+║              ║    ║              ║
+║    Author    ║    ║    Email     ║
+║    Title     ║    ║     Slug     ║
+║     Slug     ║────║     Name     ║
+║   ReplyTo    ║    ║              ║
+║    ForkOf    ║    ║              ║
+║     Kind     ║    ║              ║
+╚══════════════╝    ╚══════════════╝
+ */
+
 message User {
   int64 id = 1 [(go.field.options) = {name: 'ID', tags: 'gorm:"primary_key"'}];
   int64 created_at = 2 [(go.field.options) = {tags: 'gorm:"autocreatetime:nano"'}];
@@ -63,9 +76,13 @@ message User {
   int64 deleted_at = 4;
 
   string email = 10 [(go.field.options) = {tags: 'gorm:"size:255;not null;index:,unique"'}];
-  string username = 11 [(go.field.options) = {tags: 'gorm:"size:32;not null;default:\'\'"'}];
+  string slug = 11 [(go.field.options) = {tags: 'gorm:"size:32;not null;default:\'\'"'}];
   string firstname = 12 [(go.field.options) = {tags: 'gorm:"size:255;not null;default:\'\'"'}];
   string lastname = 13 [(go.field.options) = {tags: 'gorm:"size:255;not null;default:\'\'"'}];
+  // bio
+  // timezone
+  // location
+  // avatar
 }
 
 message Post {
@@ -74,6 +91,19 @@ message Post {
   int64 updated_at = 3 [(go.field.options) = {tags: 'gorm:"autoupdatetime:nano"'}];
   int64 deleted_at = 4;
 
-  User user = 10;
-  int64 user_id = 11 [(go.field.options) = {name: 'UserID'}];
+  User author = 10;
+  int64 author_id = 11 [(go.field.options) = {name: 'AuthorID'}];
+  string title = 12;
+  string slug = 13;
+  int64 thread_post_id = 14 [(go.field.options) = {name: 'ThreadPostID'}];
+  Post thread_post = 15;
+  int64 reply_to_id = 16 [(go.field.options) = {name: 'ReplyToID'}];
+  Post reply_to = 17;
+  Kind kind = 18;
+
+  enum Kind {
+    Unknown = 0;
+    Post = 1;
+    Comment = 2;
+  }
 }
diff --git a/gen.sum b/gen.sum
index 9ccf176..8db294d 100644
--- a/gen.sum
+++ b/gen.sum
@@ -1,2 +1,2 @@
 3c759a52c992517ba41fe8b27d51e4704e8ab80b  Makefile
-dd8d46f72532b4883761936936116c1e93a47e94  ./api/sgtm.proto
+bc89bb4fa0662005e650784929a9e1a48c098007  ./api/sgtm.proto
diff --git a/go.sum b/go.sum
index c43ce77..1bc4fec 100644
--- a/go.sum
+++ b/go.sum
@@ -7,8 +7,6 @@ github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAE
 github.com/PuerkitoBio/goquery v1.5.1/go.mod h1:GsLWisAFVj4WgDibEWF4pvYnkVQBpKBKeU+7zCJoLcc=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alta/protopatch v0.0.0-20200625224233-3948e4f364d5 h1:gypx3TTaUxvKo0oU2kqUx1ThiA+hpj3nXwDai9+/Ufc=
-github.com/alta/protopatch v0.0.0-20200625224233-3948e4f364d5/go.mod h1:HXJRgQ8KH43H398kvLjYVfRJ2qhmsWuw1tXs/JolOlo=
 github.com/alta/protopatch v0.0.0-20200626224044-476e721b7775 h1://p5bjjSu8R9sr4WWXX9JzuX2PATby88jav3fNJSWSY=
 github.com/alta/protopatch v0.0.0-20200626224044-476e721b7775/go.mod h1:VjEhmdGPImOJJNfuOpyJ0X5hL8ByRXQNUA7UOyiMGAE=
 github.com/andybalholm/cascadia v1.1.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y=
@@ -291,8 +289,7 @@ golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200308013534-11ec41452d41 h1:9Di9iYgOt9ThCipBxChBVhgNipDoE5mxO84rQV7D0FE=
 golang.org/x/tools v0.0.0-20200308013534-11ec41452d41/go.mod h1:o4KQGtdN14AW+yjsvvwRTJJuXz8XRtIHtEnmAXLyFUw=
-golang.org/x/tools v0.0.0-20200617212913-87be026d3888 h1:RhVvG5xCyGuE1Y6VrAtr0GLMLS36XSD6OF8LIIVB8No=
-golang.org/x/tools v0.0.0-20200617212913-87be026d3888/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
+golang.org/x/tools v0.0.0-20200626032829-bcbc01e07a20 h1:q+ysxVHVQNTVHgzwjuk4ApAILRbfOLARfnEaqCIBR6A=
 golang.org/x/tools v0.0.0-20200626032829-bcbc01e07a20/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -319,8 +316,7 @@ google.golang.org/grpc v1.29.1 h1:EC2SB8S04d2r73uptxphDSUG+kTKVgjRPF+N3xpxRB4=
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.30.0 h1:M5a8xTlYTxwMn5ZFkwhRabsygDY5G8TYLyQDBxJNAxE=
 google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v0.0.0-20200617041141-9a465503579e h1:580RpKFLO8Xra4cgj3UmFukvMmMosqUNse1x6E6hwL8=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v0.0.0-20200617041141-9a465503579e/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v0.0.0-20200626030347-424195440776 h1:pQdN2GCyXwNoWsCd0IPtYDDCTLiGjNyYIJ3qcZCxNYI=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v0.0.0-20200626030347-424195440776/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/grpc/examples v0.0.0-20200626030347-424195440776 h1:KptVG3kkyYx1GS1+J2Y8e8MmRajMTizPEs1XEbRUayM=
 google.golang.org/grpc/examples v0.0.0-20200626030347-424195440776/go.mod h1:5j1uub0jRGhRiSghIlrThmBUgcgLXOVJQ/l1getT4uo=
diff --git a/pkg/sgtm/api.go b/pkg/sgtm/api.go
index d1345a6..e4e67b9 100644
--- a/pkg/sgtm/api.go
+++ b/pkg/sgtm/api.go
@@ -12,16 +12,16 @@ import (
 
 func (svc *Service) Register(ctx context.Context, input *sgtmpb.Register_Request) (*sgtmpb.Register_Response, error) {
 	fmt.Println(godev.PrettyJSON(input))
-	if input == nil || input.Email == "" || input.Username == "" {
+	if input == nil || input.Email == "" || input.Slug == "" {
 		return nil, fmt.Errorf("missing required fields")
 	}
 
-	// FIXME: generate username if empty
+	// FIXME: generate slug if empty
 	// FIXME: captcha
 	// FIXME: validate valid email
 	// FIXME: activity -> register (in a transaction)
 	user := sgtmpb.User{
-		Username:  input.Username,
+		Slug:      input.Slug,
 		Email:     input.Email,
 		Firstname: input.Firstname,
 		Lastname:  input.Lastname,
diff --git a/pkg/sgtm/api_test.go b/pkg/sgtm/api_test.go
index 5535fce..b4aeb09 100644
--- a/pkg/sgtm/api_test.go
+++ b/pkg/sgtm/api_test.go
@@ -24,17 +24,17 @@ func TestServiceRegister(t *testing.T) {
 	}{
 		{"nil", nil, nil, true},
 		{"empty", &sgtmpb.Register_Request{}, nil, true},
-		{"no-email", &sgtmpb.Register_Request{Username: "moul", Firstname: "Manfred", Lastname: "Touron"}, nil, true},
-		{"no-username", &sgtmpb.Register_Request{Email: "m@42.am", Firstname: "Manfred", Lastname: "Touron"}, nil, true},
+		{"no-email", &sgtmpb.Register_Request{Slug: "moul", Firstname: "Manfred", Lastname: "Touron"}, nil, true},
+		{"no-slug", &sgtmpb.Register_Request{Email: "m@42.am", Firstname: "Manfred", Lastname: "Touron"}, nil, true},
 		{
 			"manfred",
-			&sgtmpb.Register_Request{Username: "moul", Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am"},
-			&sgtmpb.Register_Response{User: &sgtmpb.User{Username: "moul", Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am"}},
+			&sgtmpb.Register_Request{Slug: "moul", Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am"},
+			&sgtmpb.Register_Response{User: &sgtmpb.User{Slug: "moul", Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am"}},
 			false,
 		},
 		{
 			"manfred.bis",
-			&sgtmpb.Register_Request{Username: "moul", Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am"},
+			&sgtmpb.Register_Request{Slug: "moul", Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am"},
 			nil,
 			true,
 		},
diff --git a/pkg/sgtm/db_test.go b/pkg/sgtm/db_test.go
index 280f04e..dad7367 100644
--- a/pkg/sgtm/db_test.go
+++ b/pkg/sgtm/db_test.go
@@ -25,25 +25,25 @@ func TestDBUserCreate(t *testing.T) {
 		},*/
 		{
 			"manfred",
-			&sgtmpb.User{Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am", Username: "moul"},
-			&sgtmpb.User{Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am", Username: "moul"},
+			&sgtmpb.User{Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am", Slug: "moul"},
+			&sgtmpb.User{Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am", Slug: "moul"},
 			false,
 		},
 		{
 			"manfred2",
-			&sgtmpb.User{Firstname: "Manfred2", Lastname: "Touron2", Email: "m@42.am2", Username: "moul2"},
-			&sgtmpb.User{Firstname: "Manfred2", Lastname: "Touron2", Email: "m@42.am2", Username: "moul2"},
+			&sgtmpb.User{Firstname: "Manfred2", Lastname: "Touron2", Email: "m@42.am2", Slug: "moul2"},
+			&sgtmpb.User{Firstname: "Manfred2", Lastname: "Touron2", Email: "m@42.am2", Slug: "moul2"},
 			false,
 		},
 		{
 			"manfred:again",
-			&sgtmpb.User{Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am", Username: "moul"},
+			&sgtmpb.User{Firstname: "Manfred", Lastname: "Touron", Email: "m@42.am", Slug: "moul"},
 			nil,
 			true,
 		},
 		{
 			"manfred2:again",
-			&sgtmpb.User{Firstname: "Manfred2", Lastname: "Touron2", Email: "m@42.am2", Username: "moul2"},
+			&sgtmpb.User{Firstname: "Manfred2", Lastname: "Touron2", Email: "m@42.am2", Slug: "moul2"},
 			nil,
 			true,
 		},
diff --git a/pkg/sgtmpb/sgtm.pb.go b/pkg/sgtmpb/sgtm.pb.go
index 19583c4..e45912e 100644
--- a/pkg/sgtmpb/sgtm.pb.go
+++ b/pkg/sgtmpb/sgtm.pb.go
@@ -28,6 +28,55 @@ const (
 // of the legacy proto package is being used.
 const _ = proto.ProtoPackageIsVersion4
 
+type Post_Kind int32
+
+const (
+	Post_Unknown Post_Kind = 0
+	Post_Post    Post_Kind = 1
+	Post_Comment Post_Kind = 2
+)
+
+// Enum value maps for Post_Kind.
+var (
+	Post_Kind_name = map[int32]string{
+		0: "Unknown",
+		1: "Post",
+		2: "Comment",
+	}
+	Post_Kind_value = map[string]int32{
+		"Unknown": 0,
+		"Post":    1,
+		"Comment": 2,
+	}
+)
+
+func (x Post_Kind) Enum() *Post_Kind {
+	p := new(Post_Kind)
+	*p = x
+	return p
+}
+
+func (x Post_Kind) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Post_Kind) Descriptor() protoreflect.EnumDescriptor {
+	return file_sgtm_proto_enumTypes[0].Descriptor()
+}
+
+func (Post_Kind) Type() protoreflect.EnumType {
+	return &file_sgtm_proto_enumTypes[0]
+}
+
+func (x Post_Kind) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use Post_Kind.Descriptor instead.
+func (Post_Kind) EnumDescriptor() ([]byte, []int) {
+	return file_sgtm_proto_rawDescGZIP(), []int{6, 0}
+}
+
 type Ping struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -228,7 +277,7 @@ type User struct {
 	UpdatedAt int64  `protobuf:"varint,3,opt,name=updated_at,json=updatedAt,proto3" json:"updated_at,omitempty" gorm:"autoupdatetime:nano"`
 	DeletedAt int64  `protobuf:"varint,4,opt,name=deleted_at,json=deletedAt,proto3" json:"deleted_at,omitempty"`
 	Email     string `protobuf:"bytes,10,opt,name=email,proto3" json:"email,omitempty" gorm:"size:255;not null;index:,unique"`
-	Username  string `protobuf:"bytes,11,opt,name=username,proto3" json:"username,omitempty" gorm:"size:32;not null;default:''"`
+	Slug      string `protobuf:"bytes,11,opt,name=slug,proto3" json:"slug,omitempty" gorm:"size:32;not null;default:''"`
 	Firstname string `protobuf:"bytes,12,opt,name=firstname,proto3" json:"firstname,omitempty" gorm:"size:255;not null;default:''"`
 	Lastname  string `protobuf:"bytes,13,opt,name=lastname,proto3" json:"lastname,omitempty" gorm:"size:255;not null;default:''"`
 }
@@ -300,9 +349,9 @@ func (x *User) GetEmail() string {
 	return ""
 }
 
-func (x *User) GetUsername() string {
+func (x *User) GetSlug() string {
 	if x != nil {
-		return x.Username
+		return x.Slug
 	}
 	return ""
 }
@@ -326,12 +375,19 @@ type Post struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	ID        int64 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty" gorm:"primary_key"`
-	CreatedAt int64 `protobuf:"varint,2,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty" gorm:"autocreatetime:nano"`
-	UpdatedAt int64 `protobuf:"varint,3,opt,name=updated_at,json=updatedAt,proto3" json:"updated_at,omitempty" gorm:"autoupdatetime:nano"`
-	DeletedAt int64 `protobuf:"varint,4,opt,name=deleted_at,json=deletedAt,proto3" json:"deleted_at,omitempty"`
-	User      *User `protobuf:"bytes,10,opt,name=user,proto3" json:"user,omitempty"`
-	UserID    int64 `protobuf:"varint,11,opt,name=user_id,json=userId,proto3" json:"user_id,omitempty"`
+	ID           int64     `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty" gorm:"primary_key"`
+	CreatedAt    int64     `protobuf:"varint,2,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty" gorm:"autocreatetime:nano"`
+	UpdatedAt    int64     `protobuf:"varint,3,opt,name=updated_at,json=updatedAt,proto3" json:"updated_at,omitempty" gorm:"autoupdatetime:nano"`
+	DeletedAt    int64     `protobuf:"varint,4,opt,name=deleted_at,json=deletedAt,proto3" json:"deleted_at,omitempty"`
+	Author       *User     `protobuf:"bytes,10,opt,name=author,proto3" json:"author,omitempty"`
+	AuthorID     int64     `protobuf:"varint,11,opt,name=author_id,json=authorId,proto3" json:"author_id,omitempty"`
+	Title        string    `protobuf:"bytes,12,opt,name=title,proto3" json:"title,omitempty"`
+	Slug         string    `protobuf:"bytes,13,opt,name=slug,proto3" json:"slug,omitempty"`
+	ThreadPostID int64     `protobuf:"varint,14,opt,name=thread_post_id,json=threadPostId,proto3" json:"thread_post_id,omitempty"`
+	ThreadPost   *Post     `protobuf:"bytes,15,opt,name=thread_post,json=threadPost,proto3" json:"thread_post,omitempty"`
+	ReplyToID    int64     `protobuf:"varint,16,opt,name=reply_to_id,json=replyToId,proto3" json:"reply_to_id,omitempty"`
+	ReplyTo      *Post     `protobuf:"bytes,17,opt,name=reply_to,json=replyTo,proto3" json:"reply_to,omitempty"`
+	Kind         Post_Kind `protobuf:"varint,18,opt,name=kind,proto3,enum=sgtm.Post_Kind" json:"kind,omitempty"`
 }
 
 func (x *Post) Reset() {
@@ -394,20 +450,69 @@ func (x *Post) GetDeletedAt() int64 {
 	return 0
 }
 
-func (x *Post) GetUser() *User {
+func (x *Post) GetAuthor() *User {
 	if x != nil {
-		return x.User
+		return x.Author
 	}
 	return nil
 }
 
-func (x *Post) GetUserID() int64 {
+func (x *Post) GetAuthorID() int64 {
 	if x != nil {
-		return x.UserID
+		return x.AuthorID
 	}
 	return 0
 }
 
+func (x *Post) GetTitle() string {
+	if x != nil {
+		return x.Title
+	}
+	return ""
+}
+
+func (x *Post) GetSlug() string {
+	if x != nil {
+		return x.Slug
+	}
+	return ""
+}
+
+func (x *Post) GetThreadPostID() int64 {
+	if x != nil {
+		return x.ThreadPostID
+	}
+	return 0
+}
+
+func (x *Post) GetThreadPost() *Post {
+	if x != nil {
+		return x.ThreadPost
+	}
+	return nil
+}
+
+func (x *Post) GetReplyToID() int64 {
+	if x != nil {
+		return x.ReplyToID
+	}
+	return 0
+}
+
+func (x *Post) GetReplyTo() *Post {
+	if x != nil {
+		return x.ReplyTo
+	}
+	return nil
+}
+
+func (x *Post) GetKind() Post_Kind {
+	if x != nil {
+		return x.Kind
+	}
+	return Post_Unknown
+}
+
 type Ping_Request struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -582,10 +687,10 @@ type Register_Request struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Email     string `protobuf:"bytes,10,opt,name=email,proto3" json:"email,omitempty" gorm:"size:255;not null;index:,unique"`
-	Username  string `protobuf:"bytes,11,opt,name=username,proto3" json:"username,omitempty" gorm:"size:32;not null;default:''"`
-	Firstname string `protobuf:"bytes,12,opt,name=firstname,proto3" json:"firstname,omitempty" gorm:"size:255;not null;default:''"`
-	Lastname  string `protobuf:"bytes,13,opt,name=lastname,proto3" json:"lastname,omitempty" gorm:"size:255;not null;default:''"`
+	Email     string `protobuf:"bytes,10,opt,name=email,proto3" json:"email,omitempty"`
+	Slug      string `protobuf:"bytes,11,opt,name=slug,proto3" json:"slug,omitempty"`
+	Firstname string `protobuf:"bytes,12,opt,name=firstname,proto3" json:"firstname,omitempty"`
+	Lastname  string `protobuf:"bytes,13,opt,name=lastname,proto3" json:"lastname,omitempty"`
 }
 
 func (x *Register_Request) Reset() {
@@ -627,9 +732,9 @@ func (x *Register_Request) GetEmail() string {
 	return ""
 }
 
-func (x *Register_Request) GetUsername() string {
+func (x *Register_Request) GetSlug() string {
 	if x != nil {
-		return x.Username
+		return x.Slug
 	}
 	return ""
 }
@@ -879,116 +984,124 @@ var file_sgtm_proto_rawDesc = []byte{
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+	0x73, 0x67, 0x74, 0x6d, 0x2e, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x2e, 0x52, 0x65, 0x73, 0x70,
+	0x6f, 0x6e, 0x73, 0x65, 0x22, 0x16, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x10, 0x12, 0x0e, 0x2f, 0x61,
+	0x70, 0x69, 0x2f, 0x76, 0x31, 0x2f, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x42, 0x19, 0x5a, 0x17,
+	0x6d, 0x6f, 0x75, 0x6c, 0x2e, 0x69, 0x6f, 0x2f, 0x73, 0x67, 0x74, 0x6d, 0x2f, 0x70, 0x6b, 0x67,
+	0x2f, 0x73, 0x67, 0x74, 0x6d, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1003,46 +1116,51 @@ func file_sgtm_proto_rawDescGZIP() []byte {
 	return file_sgtm_proto_rawDescData
 }
 
+var file_sgtm_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
 var file_sgtm_proto_msgTypes = make([]protoimpl.MessageInfo, 17)
 var file_sgtm_proto_goTypes = []interface{}{
-	(*Ping)(nil),              // 0: sgtm.Ping
-	(*Status)(nil),            // 1: sgtm.Status
-	(*Register)(nil),          // 2: sgtm.Register
-	(*UserList)(nil),          // 3: sgtm.UserList
-	(*PostList)(nil),          // 4: sgtm.PostList
-	(*User)(nil),              // 5: sgtm.User
-	(*Post)(nil),              // 6: sgtm.Post
-	(*Ping_Request)(nil),      // 7: sgtm.Ping.Request
-	(*Ping_Response)(nil),     // 8: sgtm.Ping.Response
-	(*Status_Request)(nil),    // 9: sgtm.Status.Request
-	(*Status_Response)(nil),   // 10: sgtm.Status.Response
-	(*Register_Request)(nil),  // 11: sgtm.Register.Request
-	(*Register_Response)(nil), // 12: sgtm.Register.Response
-	(*UserList_Request)(nil),  // 13: sgtm.UserList.Request
-	(*UserList_Response)(nil), // 14: sgtm.UserList.Response
-	(*PostList_Request)(nil),  // 15: sgtm.PostList.Request
-	(*PostList_Response)(nil), // 16: sgtm.PostList.Response
+	(Post_Kind)(0),            // 0: sgtm.Post.Kind
+	(*Ping)(nil),              // 1: sgtm.Ping
+	(*Status)(nil),            // 2: sgtm.Status
+	(*Register)(nil),          // 3: sgtm.Register
+	(*UserList)(nil),          // 4: sgtm.UserList
+	(*PostList)(nil),          // 5: sgtm.PostList
+	(*User)(nil),              // 6: sgtm.User
+	(*Post)(nil),              // 7: sgtm.Post
+	(*Ping_Request)(nil),      // 8: sgtm.Ping.Request
+	(*Ping_Response)(nil),     // 9: sgtm.Ping.Response
+	(*Status_Request)(nil),    // 10: sgtm.Status.Request
+	(*Status_Response)(nil),   // 11: sgtm.Status.Response
+	(*Register_Request)(nil),  // 12: sgtm.Register.Request
+	(*Register_Response)(nil), // 13: sgtm.Register.Response
+	(*UserList_Request)(nil),  // 14: sgtm.UserList.Request
+	(*UserList_Response)(nil), // 15: sgtm.UserList.Response
+	(*PostList_Request)(nil),  // 16: sgtm.PostList.Request
+	(*PostList_Response)(nil), // 17: sgtm.PostList.Response
 }
 var file_sgtm_proto_depIdxs = []int32{
-	5,  // 0: sgtm.Post.user:type_name -> sgtm.User
-	5,  // 1: sgtm.Register.Response.user:type_name -> sgtm.User
-	5,  // 2: sgtm.UserList.Response.users:type_name -> sgtm.User
-	6,  // 3: sgtm.PostList.Response.posts:type_name -> sgtm.Post
-	11, // 4: sgtm.WebAPI.Register:input_type -> sgtm.Register.Request
-	13, // 5: sgtm.WebAPI.UserList:input_type -> sgtm.UserList.Request
-	15, // 6: sgtm.WebAPI.PostList:input_type -> sgtm.PostList.Request
-	7,  // 7: sgtm.WebAPI.Ping:input_type -> sgtm.Ping.Request
-	9,  // 8: sgtm.WebAPI.Status:input_type -> sgtm.Status.Request
-	12, // 9: sgtm.WebAPI.Register:output_type -> sgtm.Register.Response
-	14, // 10: sgtm.WebAPI.UserList:output_type -> sgtm.UserList.Response
-	16, // 11: sgtm.WebAPI.PostList:output_type -> sgtm.PostList.Response
-	8,  // 12: sgtm.WebAPI.Ping:output_type -> sgtm.Ping.Response
-	10, // 13: sgtm.WebAPI.Status:output_type -> sgtm.Status.Response
-	9,  // [9:14] is the sub-list for method output_type
-	4,  // [4:9] is the sub-list for method input_type
-	4,  // [4:4] is the sub-list for extension type_name
-	4,  // [4:4] is the sub-list for extension extendee
-	0,  // [0:4] is the sub-list for field type_name
+	6,  // 0: sgtm.Post.author:type_name -> sgtm.User
+	7,  // 1: sgtm.Post.thread_post:type_name -> sgtm.Post
+	7,  // 2: sgtm.Post.reply_to:type_name -> sgtm.Post
+	0,  // 3: sgtm.Post.kind:type_name -> sgtm.Post.Kind
+	6,  // 4: sgtm.Register.Response.user:type_name -> sgtm.User
+	6,  // 5: sgtm.UserList.Response.users:type_name -> sgtm.User
+	7,  // 6: sgtm.PostList.Response.posts:type_name -> sgtm.Post
+	12, // 7: sgtm.WebAPI.Register:input_type -> sgtm.Register.Request
+	14, // 8: sgtm.WebAPI.UserList:input_type -> sgtm.UserList.Request
+	16, // 9: sgtm.WebAPI.PostList:input_type -> sgtm.PostList.Request
+	8,  // 10: sgtm.WebAPI.Ping:input_type -> sgtm.Ping.Request
+	10, // 11: sgtm.WebAPI.Status:input_type -> sgtm.Status.Request
+	13, // 12: sgtm.WebAPI.Register:output_type -> sgtm.Register.Response
+	15, // 13: sgtm.WebAPI.UserList:output_type -> sgtm.UserList.Response
+	17, // 14: sgtm.WebAPI.PostList:output_type -> sgtm.PostList.Response
+	9,  // 15: sgtm.WebAPI.Ping:output_type -> sgtm.Ping.Response
+	11, // 16: sgtm.WebAPI.Status:output_type -> sgtm.Status.Response
+	12, // [12:17] is the sub-list for method output_type
+	7,  // [7:12] is the sub-list for method input_type
+	7,  // [7:7] is the sub-list for extension type_name
+	7,  // [7:7] is the sub-list for extension extendee
+	0,  // [0:7] is the sub-list for field type_name
 }
 
 func init() { file_sgtm_proto_init() }
@@ -1261,13 +1379,14 @@ func file_sgtm_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_sgtm_proto_rawDesc,
-			NumEnums:      0,
+			NumEnums:      1,
 			NumMessages:   17,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
 		GoTypes:           file_sgtm_proto_goTypes,
 		DependencyIndexes: file_sgtm_proto_depIdxs,
+		EnumInfos:         file_sgtm_proto_enumTypes,
 		MessageInfos:      file_sgtm_proto_msgTypes,
 	}.Build()
 	File_sgtm_proto = out.File