diff --git a/readme.md b/readme.md
index 931c203..ef7772a 100644
--- a/readme.md
+++ b/readme.md
@@ -1,4 +1,4 @@
-# 【从零开发】主义主义网站 系列视频
+# 【从零开发】主义主义网站
 
-[视频列表](https://space.bilibili.com/483417795/video)
+## [系列视频](https://space.bilibili.com/483417795/video)
 
diff --git a/typ.ts b/typ.ts
new file mode 100644
index 0000000..eb7e058
--- /dev/null
+++ b/typ.ts
@@ -0,0 +1,55 @@
+export type Id = {
+	_id: number,
+	utc: number,
+	nam: string,
+	adm1: string,
+	adm2: string,
+	msg: string,
+}
+
+export type Usr = Id & {
+	nbr?: string,
+	sms?: { code: number, utc: number },
+	jwt?: string,
+}
+export type Soc = Id & {
+	sec: Usr["_id"][],
+	agr: { msg: string, utc: number },
+}
+export type Agd = Id & {
+	soc: Soc["_id"],
+}
+
+export type Rec = {
+	_id: { usr: Usr["_id"], soc: Soc["_id"], utc: number },
+	msg: string,
+	amt: number,
+	sec?: Usr["_id"],
+}
+export type Cdt = Rec & {
+	utc: { eft: number, exp: number, agr: number },
+	aug?: { msg: string, amt: number, utc: number, sec: Usr["_id"] }[],
+}
+export type Dbt = Rec & {
+	rev?: { msg: string, rev: 1 | 2 | 3 | 4 | 5, utc: number },
+}
+export type Ern = Rec
+
+export type Msg = {
+	_id: number,
+	nam: string,
+	utc: { pre: number, put: number },
+	usr: Usr["_id"],
+	msg: string,
+	pin?: true,
+}
+export type Wsl = Msg
+export type Lit = Msg
+
+export type Aut = {
+	_id: 1,
+	sup: Usr["_id"][], // super supreme 超级用户
+	aut: Usr["_id"][], // author 管理员
+	wsl: Usr["_id"][], // 编辑
+	lit: Usr["_id"][], // 编辑
+}